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LM340, LM340A, LM7805, LM7812, LM7815

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LM340, LM340A and LM7805 Family Wide VIN 1.5-A Fixed Voltage Regulators
1 Features 3 Description
•
1 Output Current up to 1.5 A The LM340 and LM7805 Family monolithic 3-terminal
positive voltage regulators employ internal current-
• Available in Fixed 5-V, 12-V, and 15-V Options limiting, thermal shutdown and safe-area
• Output Voltage Tolerances of ±2% at TJ = 25°C compensation, making them essentially indestructible.
(LM340A) If adequate heat sinking is provided, they can deliver
• Line Regulation of 0.01% / V of at 1-A Load over 1.5-A output current. They are intended as fixed
(LM340A) voltage regulators in a wide range of applications
including local (on-card) regulation for elimination of
• Load Regulation of 0.3% / A (LM340A) noise and distribution problems associated with
• Internal Thermal Overload, Short-Circuit and SOA single-point regulation. In addition to use as fixed
Protection voltage regulators, these devices can be used with
• Available in Space-Saving SOT-223 Package external components to obtain adjustable output
voltages and currents.
• Output Capacitance Not Required for Stability
Considerable effort was expended to make the entire
2 Applications series of regulators easy to use and minimize the
number of external components. It is not necessary to
• Industrial Power Supplies bypass the output, although this does improve
• SMPS Post Regulation transient response. Input bypassing is needed only if
• HVAC Systems the regulator is located far from the filter capacitor of
the power supply.
• AC Inventors
• Test and Measurement Equipment LM7805 is also available in a higher accuracy and
better performance version (LM340A). Refer to
• Brushed and Brushless DC Motor Drivers LM340A specifications in the LM340A Electrical
• Solar Energy String Invertors Characterisitcs table.
SPACE
Device Information(1)
Available Packages PART NUMBER PACKAGE BODY SIZE (NOM)
Pin 1. Input DDPAK/TO-263 (3) 10.18 mm × 8.41 mm
2. Ground
LM340x SOT-223 (4) 6.50 mm × 3.50 mm
3. Output 2
1 LM7805 Family
Tab/Case is Ground or Output TO-220 (3) 14.986 mm × 10.16 mm
TO-3 (2) 38.94 mm x 25.40 mm
TO-3 TO-220
(1) For all available packages, see the orderable addendum at
1 the end of the data sheet.
2
3

Fixed Output Voltage Regulator

TO-263 SOT-223

1 2 1
2 3
3

*Required if the regulator is located far from

the power supply filter.
**Although no output capacitor is needed
for stability, it does help transient response.
(If needed, use 0.1-μF, ceramic disc).

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
LM340, LM340A, LM7805, LM7812, LM7815
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Table of Contents
1 Features .................................................................. 1 7.3 Feature Description................................................. 12
2 Applications ........................................................... 1 7.4 Device Functional Modes........................................ 12
3 Description ............................................................. 1 8 Application and Implementation ........................ 13
4 Revision History..................................................... 2 8.1 Application Information............................................ 13
8.2 Typical Applications ................................................ 14
5 Pin Configuration and Functions ......................... 3
8.3 System Examples ................................................... 15
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4 9 Power Supply Recommendations...................... 17
6.2 ESD Ratings.............................................................. 4 10 Layout................................................................... 17
6.3 Recommended Operating Conditions....................... 4 10.1 Layout Guidelines ................................................. 17
6.4 Thermal Information .................................................. 4 10.2 Layout Example ................................................... 17
6.5 LM340A Electrical Characteristics, 10.3 Heat Sinking DDPAK/TO-263 and SOT-223
Package Parts.......................................................... 18
VO = 5 V, VI = 10 V............................................................ 5
6.6 LM340 / LM7805 Electrical Characteristics, 11 Device and Documentation Support ................. 20
VO = 5 V, VI = 10 V............................................................ 6 11.1 Documentation Support ........................................ 20
6.7 LM340 / LM7812 Electrical Characteristics, 11.2 Related Links ........................................................ 20
VO = 12 V, VI = 19 V.......................................................... 7 11.3 Receiving Notification of Documentation Updates 20
6.8 LM340 / LM7815 Electrical Characteristics, 11.4 Community Resources.......................................... 20
VO = 15 V, VI = 23 V.......................................................... 8 11.5 Trademarks ........................................................... 20
6.9 Typical Characteristics .............................................. 9 11.6 Electrostatic Discharge Caution ............................ 20
7 Detailed Description ............................................ 12 11.7 Glossary ................................................................ 20
7.1 Overview ................................................................. 12 12 Mechanical, Packaging, and Orderable
7.2 Functional Block Diagram ....................................... 12 Information ........................................................... 21

4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision K (November 2015) to Revision L Page

• Changed pinout number order for the TO-220 and SOT-223 packages from: 2, 3, 1 to: 1, 2, 3 .......................................... 1

Changes from Revision J (December 2013) to Revision K Page

• Added ESD Ratings table, Thermal Information table, Feature Description section, Device Functional Modes,
Application and Implementation section, Power Supply Recommendations section, Layout section, Device and
Documentation Support section, and Mechanical, Packaging, and Orderable Information section....................................... 1
• Deleted obsolete LM140 and LM7808C devices from the data sheet ................................................................................... 1
• Changed Figure 13 caption from Line Regulation 140AK-5.0 to Line Regulation LM340, .................................................. 11
• Changed Figure 14 caption from Line Regulation 140AK-5.0 to Line Regulation LM340, .................................................. 11

Changes from Revision I (March 2013) to Revision J Page

• Changed 0.5 from typ to max ................................................................................................................................................. 5

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5 Pin Configuration and Functions

LM7805 and LM7812 KTT Package

3-Pin DDPAK/TO-263 LM7805 DCY Package
Top View 4-Pin SOT-223
Side View

LM340K-5.0 NDS Package

2-Pin TO-3
Top View
LM7805, LM7812, and LM7815 NDE Package
3-Pin TO-220
Top View

Pin Functions
PIN
I/O DESCRIPTION
NAME NO.
INPUT 1 I Input voltage pin
GND 2 I/O Ground pin
OUTPUT 3 O Output voltage pin

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6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1) (2)
MIN MAX UNIT
DC input voltage 35 V
(3)
Internal power dissipation Internally Limited
Maximum junction temperature 150 °C
TO-3 package (NDS) 300 °C
Lead temperature (soldering, 10 sec.)
Lead temperature 1,6 mm (1/16 in) from case for 10 s 230 °C
Storage temperature −65 150 °C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) The maximum allowable power dissipation at any ambient temperature is a function of the maximum junction temperature for operation
(TJMAX = 125°C or 150°C), the junction-to-ambient thermal resistance (θJA), and the ambient temperature (TA). PDMAX = (TJMAX −
TA)/θJA. If this dissipation is exceeded, the die temperature rises above TJMAX and the electrical specifications do not apply. If the die
temperature rises above 150°C, the device goes into thermal shutdown. For the TO-3 package (NDS), the junction-to-ambient thermal
resistance (θJA) is 39°C/W. When using a heat sink, θJA is the sum of the 4°C/W junction-to-case thermal resistance (θJC) of the TO-3
package and the case-to-ambient thermal resistance of the heat sink. For the TO-220 package (NDE), θJA is 54°C/W and θJC is 4°C/W.
If SOT-223 is used, the junction-to-ambient thermal resistance is 174°C/W and can be reduced by a heat sink (see Applications Hints on
heat sinking).If the DDPAK\TO-263 package is used, the thermal resistance can be reduced by increasing the PCB copper area
thermally connected to the package: Using 0.5 square inches of copper area, θJA is 50°C/W; with 1 square inch of copper area, θJA is
37°C/W; and with 1.6 or more inches of copper area, θJA is 32°C/W.

6.2 ESD Ratings

VALUE UNIT
Electrostatic (1)
V(ESD) Human-body model (HBM) ±2000 V
discharge

(1) ESD rating is based on the human-body model, 100 pF discharged through 1.5 kΩ.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
Temperature (TA) LM340A, LM340 0 125 °C

6.4 Thermal Information

LM340, LM7805 Family
NDE KTT DCY NDS
THERMAL METRIC (1) UNIT
(TO-220) (DDPAK/TO-263) (SOT-223) (TO-3)
3 PINS 3 PINS 4 PINS 2 PINS
RθJA Junction-to-ambient thermal resistance 23.9 44.8 62.1 39 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 16.7 45.6 44 2 °C/W
RθJB Junction-to-board thermal resistance 5.3 24.4 10.7 — °C/W
ψJT Junction-to-top characterization parameter 3.2 11.2 2.7 — °C/W
ψJB Junction-to-board characterization parameter 5.3 23.4 10.6 — °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 1.7 1.5 — — °C/W

(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.

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6.5 LM340A Electrical Characteristics,

VO = 5 V, VI = 10 V
IOUT = 1 A, 0°C ≤ TJ ≤ 125°C (LM340A) unless otherwise specified (1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TJ = 25°C 4.9 5 5.1 V
VO Output voltage PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A 4.8 5.2
V
7.5 V ≤ VIN ≤ 20 V
7.5 V ≤ VIN ≤ 20 TJ = 25°C 3 10 mV
V Over temperature, IO = 500 mA 10 mV
ΔVO Line regulation
TJ = 25°C 4 mV
8 V ≤ VIN ≤ 12 V
Over temperature 12 mV
5 mA ≤ IO ≤ 1.5 A 10 25 mV
TJ = 25°C
ΔVO Load regulation 250 mA ≤ IO ≤ 750 mA 15 mV
Over temperature, 5 mA ≤ IO ≤ 1 A 25 mV
TJ = 25°C 6 mA
IQ Quiescent current
Over temperature 6.5 mA
TJ = 25°C, IO = 1 A 0.8
mA
7.5 V ≤ VIN ≤ 20 V
Quiescent current
ΔIQ Over temperature, 5 mA ≤ IO ≤ 1 A 0.5 mA
change
Over temperature, IO = 500 mA 0.8
mA
8 V ≤ VIN ≤ 25 V
VN Output noise voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 40 μV
f = 120 Hz TJ = 25°C, , IO = 1 A 68 80 dB
Ripple rejection 8 V ≤ VIN ≤ 18 68
V Over temperature, IO = 500 mA dB

Dropout voltage TJ = 25°C, IO = 1 A 2 V

Output resistance f = 1 kHz 8 mΩ
RO Short-circuit current TJ = 25°C 2.1 A
Peak output current TJ = 25°C 2.4 A
Average TC of VO Min, TJ = 0°C, IO = 5 mA −0.6 mV/°C
Input voltage required to
VIN TJ = 25°C 7.5 V
maintain line regulation

(1) All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All
characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%).
Output voltage changes due to changes in internal temperature must be taken into account separately.

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6.6 LM340 / LM7805 Electrical Characteristics,

VO = 5 V, VI = 10 V
0°C ≤ TJ ≤ 125°C unless otherwise specified (1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TJ = 25°C, 5 mA ≤ IO ≤ 1 A 4.8 5 5.2 V
VO Output voltage PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A 4.75 5.25
V
7.5 V ≤ VIN ≤ 20 V
TJ = 25°C 3 50
mV
7V ≤ VIN ≤ 25V
IO = 500 mA
Over temperature 50
mV
8V ≤ VIN ≤ 20V
ΔVO Line regulation
TJ = 25°C 50
mV
7.5V ≤ VIN ≤ 20V
IO ≤ 1 A
Over temperature 25
mV
8V ≤ VIN ≤ 12V
5 mA ≤ IO ≤ 1.5 A 10 50 mV
TJ = 25°C
ΔVO Load regulation 250 mA ≤ IO ≤ 750 mA 25 mV
Over temperature, 5 mA ≤ IO ≤ 1 A 50 mV
TJ = 25°C 8 mA
IQ Quiescent current IO ≤ 1 A
Over temperature 8.5 mA
0°C ≤ TJ ≤ 125°C, 5 mA ≤ IO ≤ 1 A 0.5 mA
TJ = 25°C, IO ≤ 1 A 1 mA
ΔIQ Quiescent current change
7 V ≤ VIN ≤ 20 V Over temperature, IO ≤ 500 1
mA
mA
VN Output noise voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 40 μV
TJ = 25°C, IO ≤ 1 A 62 80 dB
f = 120 Hz
Ripple rejection Over temperature, IO ≤ 500 62
8 V ≤ VIN ≤ 18 V mA dB

Dropout voltage TJ = 25°C, IO = 1 A 2 V

Output resistance f = 1 kHz 8 mΩ
RO Short-circuit current TJ = 25°C 2.1 A
Peak output current TJ = 25°C 2.4 A
Average TC of VOUT Over temperature, IO = 5 mA −0.6 mV/°C
VIN Input voltage required to TJ = 25°C, IO ≤ 1 A
7.5 V
maintain line regulation

(1) All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All
characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%).
Output voltage changes due to changes in internal temperature must be taken into account separately.

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6.7 LM340 / LM7812 Electrical Characteristics,

VO = 12 V, VI = 19 V
0°C ≤ TJ ≤ 125°C unless otherwise specified (1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TJ = 25°C, 5 mA ≤ IO ≤ 1 A 11.5 12 12.5 V
VO Output voltage PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A 11.4 12.6
V
14.5 V ≤ VIN ≤ 27 V
TJ = 25°C 4 120
mV
14.5V ≤ VIN ≤ 30V
IO = 500 mA
Over temperature 120
mV
15V ≤ VIN ≤ 27V
ΔVO Line regulation
TJ = 25°C 120
mV
14.6V ≤ VIN ≤ 27V
IO ≤ 1 A
Over temperature 60
mV
16V ≤ VIN ≤ 22V
5 mA ≤ IO ≤ 1.5 A 12 120 mV
TJ = 25°C
ΔVO Load regulation 250 mA ≤ IO ≤ 750 mA 60 mV
Over temperature, 5 mA ≤ IO ≤ 1 A 120 mV
TJ = 25°C 8 mA
IQ Quiescent current IO ≤ 1 A
Over temperature 8.5 mA
5 mA ≤ IO ≤ 1 A 0.5 mA
TJ = 25°C, IO ≤ 1 A 1
mA
ΔIQ Quiescent current change 14.8 V ≤ VIN ≤ 27 V
Over temperature, IO ≤ 500 mA 1
mA
14.5 V ≤ VIN ≤ 30 V
VN Output noise voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 75 μV
f = 120 Hz TJ = 25°C, IO ≤ 1 A 55 72 dB
Ripple rejection 15 V ≤ VIN ≤ 25 Over temperature, IO ≤ 500 55
dB
V mA,
Dropout voltage TJ = 25°C, IO = 1 A 2 V
Output resistance f = 1 kHz 18 mΩ
RO Short-circuit current TJ = 25°C 1.5 A
Peak output current TJ = 25°C 2.4 A
Average TC of VOUT Over temperature, IO = 5 mA −1.5 mV/°C
VIN Input voltage required to TJ = 25°C, IO ≤ 1 A
14.6 V
maintain line regulation

(1) All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All
characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%).
Output voltage changes due to changes in internal temperature must be taken into account separately.

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6.8 LM340 / LM7815 Electrical Characteristics,

VO = 15 V, VI = 23 V
0°C ≤ TJ ≤ 125°C unless otherwise specified (1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TJ = 25°C, 5 mA ≤ IO ≤ 1 A 14.4 15 15.6 V
VO Output voltage PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A 14.25 15.75
V
17.5 V ≤ VIN ≤ 30 V
TJ = 25°C 4 150
mV
17.5 V ≤ VIN ≤ 30 V
IO = 500 mA
Over temperature 150
mV
18.5 V ≤ VIN ≤ 30 V
ΔVO Line regulation
TJ = 25°C 150
mV
17.7 V ≤ VIN ≤ 30 V
IO ≤ 1 A
Over temperature 75
mV
20 V ≤ VIN ≤ 26 V
5 mA ≤ IO ≤ 1.5 A 12 150 mV
TJ = 25°C
ΔVO Load regulation 250 mA ≤ IO ≤ 750 mA 75 mV
Over temperature, 5 mA ≤ IO ≤ 1 A, 150 mV
TJ = 25°C 8 mA
IQ Quiescent current IO ≤ 1 A
Over temperature 8.5 mA
5 mA ≤ IO ≤ 1 A 0.5 mA
TJ = 25°C, IO ≤ 1 A 1
mA
ΔIQ Quiescent current change 17.9 V ≤ VIN ≤ 30 V
Over temperature, IO ≤ 500 mA 1
mA
17.5 V ≤ VIN ≤ 30 V
VN Output noise voltage TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 90 μV
f = 120 Hz TJ = 25°C, IO ≤ 1 A 54 70 dB
Ripple rejection 18.5 V ≤ VIN ≤ Over temperature, IO ≤ 500 54
mA, dB
28.5 V
Dropout voltage TJ = 25°C, IO = 1 A 2 V
Output resistance f = 1 kHz 19 mΩ
RO Short-circuit current TJ = 25°C 1.2 A
Peak output current TJ = 25°C 2.4 A
Average TC of VOUT Over temperature, IO = 5 mA −1.8 mV/°C
VIN Input voltage required to TJ = 25°C, IO ≤ 1 A
17.7 V
maintain line regulation

(1) All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All
characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%).
Output voltage changes due to changes in internal temperature must be taken into account separately.

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6.9 Typical Characteristics

Figure 1. Maximum Average Power Dissipation Figure 2. Maximum Average Power Dissipation

Shaded area refers to LM340A/LM340, LM7805, LM7812 and

LM7815.
Figure 3. Maximum Power Dissipation (DDPAK/TO-263) Figure 4. Output Voltage (Normalized to 1 V at TJ = 25°C)

Figure 5. Ripple Rejection Figure 6. Ripple Rejection

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Typical Characteristics (continued)

Figure 7. Output Impedance Figure 8. Dropout Characteristics

Shaded area refers to LM340A/LM340, LM7805, LM7812, and

LM7815.
Figure 9. Quiescent Current Figure 10. Peak Output Current

Shaded area refers to LM340A/LM340, LM7805, LM7812, and

LM7815.
Figure 11. Dropout Voltage Figure 12. Quiescent Current

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Typical Characteristics (continued)

IOUT = 1 A, TA = 25°C VIN = 10 V, TA = 25°C

Figure 13. Line Regulation LM340 Figure 14. Line Regulation LM340

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7 Detailed Description

7.1 Overview
The LM340 and LM7805 devices are a family of fixed output positive voltage regulators with outputs ranging from
3 V to 15 V. They accept up to 35 V of input voltage and with proper heat dissipation can provide over 1.5 A of
current. With a combination of current limiting, thermal shutdown, and safe area protection, these regulators
eliminate any concern of damage. These features paired with excellent line and load regulation make the LM340
and LM7805 Family versatile solutions to a wide range of power management designs. Although the LM340 and
LM7805 Family were designed primarily as fixed-voltage regulators, these devices can be used with external
component for adjustable voltage and current.

7.2 Functional Block Diagram

7.3 Feature Description

7.3.1 Output Current
With proper considerations, the LM340 and LM7805 Family can exceed 1.5-A output current. Depending on the
desired package option, the effective junction-to-ambient thermal resistance can be reduced through heat
sinking, allowing more power to be dissipated in the device.

7.3.2 Current Limiting Feature

In the event of a short circuit at the output of the regulator, each device has an internal current limit to protect it
from damage. The typical current limits for the LM340 and LM7805 Family is 2.4 A.

7.3.3 Thermal Shutdown

Each package type employs internal current limiting and thermal shutdown to provide safe operation area
protection. If the junction temperature is allowed to rise to 150°C, the device will go into thermal shutdown.

7.4 Device Functional Modes

There are no functional modes for this device.

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8 Application and Implementation

NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.

8.1 Application Information

The LM340x and LM7805 series is designed with thermal protection, output short-circuit protection, and output
transistor safe area protection. However, as with any IC regulator, it becomes necessary to take precautions to
assure that the regulator is not inadvertently damaged. The following describes possible misapplications and
methods to prevent damage to the regulator.

8.1.1 Shorting the Regulator Input

When using large capacitors at the output of these regulators, a protection diode connected input to output
(Figure 15) may be required if the input is shorted to ground. Without the protection diode, an input short causes
the input to rapidly approach ground potential, while the output remains near the initial VOUT because of the
stored charge in the large output capacitor. The capacitor will then discharge through a large internal input to
output diode and parasitic transistors. If the energy released by the capacitor is large enough, this diode, low
current metal, and the regulator are destroyed. The fast diode in Figure 15 shunts most of the capacitors
discharge current around the regulator. Generally no protection diode is required for values of output capacitance
≤ 10 μF.

8.1.2 Raising the Output Voltage Above the Input Voltage

Because the output of the device does not sink current, forcing the output high can cause damage to internal low
current paths in a manner similar to that just described in Shorting the Regulator Input.

8.1.3 Regulator Floating Ground

When the ground pin alone becomes disconnected, the output approaches the unregulated input, causing
possible damage to other circuits connected to VOUT. If ground is reconnected with power ON, damage may also
occur to the regulator. This fault is most likely to occur when plugging in regulators or modules with on card
regulators into powered up sockets. The power must be turned off first, the thermal limit ceases operating, or the
ground must be connected first if power must be left on. See Figure 16.

8.1.4 Transient Voltages

If transients exceed the maximum rated input voltage of the device, or reach more than 0.8 V below ground and
have sufficient energy, they will damage the regulator. The solution is to use a large input capacitor, a series
input breakdown diode, a choke, a transient suppressor or a combination of these.

Figure 15. Input Short

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Application Information (continued)

Figure 16. Regulator Floating Ground

Figure 17. Transients

When a value for θ(H–A) is found, a heat sink must be selected that has a value that is less than or equal to this
number.
θ(H–A) is specified numerically by the heat sink manufacturer in this catalog or shown in a curve that plots
temperature rise vs power dissipation for the heat sink.

8.2 Typical Applications

8.2.1 Fixed Output Voltage Regulator
The LM340x and LM7805 Family devices are primarily designed to provide fixed output voltage regulation. The
simplest implementation of LM340x and LM7805 Family is shown in Figure 18.

*Required if the regulator is located far from the power supply filter.
**Although no output capacitor is needed for stability, it does help transient response. (If needed, use 0.1-μF, ceramic
disc).

Figure 18. Fixed Output Voltage Regulator

8.2.1.1 Design Requirements

The device component count is very minimal. Although not required, TI recommends employing bypass
capacitors at the output for optimum stability and transient response. These capacitors must be placed as close
as possible to the regulator. If the device is located more than 6 inches from the power supply filter, it is required
to employ input capacitor.
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Typical Applications (continued)

8.2.1.2 Detailed Design Procedure
The output voltage is set based on the device variant. LM340x and LM7805 Family are available in 5-V, 12-V
and 15-V regulator options.

8.2.1.3 Application Curve

Figure 19. VOUT vs VIN, VOUT = 5 V

8.3 System Examples

IOUT = V2–3 / R1 + IQ VOUT = 5 V + (5 V/R1 + IQ) R2 5 V/R1 > 3 IQ,

ΔIQ = 1.3 mA over line and load changes. load regulation (Lr) ≈ [(R1 + R2)/R1] (Lr of LM340-5).
Figure 20. Current Regulator Figure 21. Adjustable Output Regulator

INPUT OUTPUT INPUT OUTPUT

VI VO VI VO

0.22 PF 0.1 PF
GND GND
0.22 PF 0.1 PF

Figure 22. High Input Voltage Circuit With Series Figure 23. High Input Voltage Circuit
Resistor implementation With Transistor

Copyright © 2000–2016, Texas Instruments Incorporated Submit Documentation Feedback 15

Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815
LM340, LM340A, LM7805, LM7812, LM7815
SNOSBT0L – FEBRUARY 2000 – REVISED SEPTEMBER 2016 www.ti.com

System Examples (continued)

RSC Q1
Q1 IQ1 2N6132
2N6133 IN
VI

Q2
R1 2N6124
3.0: IREG IO MAX
OUTPUT
VO INPUT
INPUT OUT
OUTPUT
0.22 PF 0.1 PF R1
GND
3.0: 0.22 PF 0.1 PF
GND

β(Q1) ≥ IO Max / IREG Max RSC = 0.8 / ISC

R1 = 0.9 / IREG = β(Q1) VBE(Q1) / IREG Max (β +1) – IO Max R1 = βVBE(Q1) / IREG Max (β +1) – IO Max
Figure 24. High Current Voltage Regulator Figure 25. High Output Current With Short-Circuit
Protection
INPUT OUTPUT
LM340 + OUT
+ +
GND 0.1 PF

INPUT OUTPUT
LM79xx
+ +
GND 0.1 PF

- OUT

Figure 26. LM340 Used With Negative Regulator LM79xx

16 Submit Documentation Feedback Copyright © 2000–2016, Texas Instruments Incorporated

Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815

 LM340, LM340A, LM7805, LM7812, LM7815
www.ti.com SNOSBT0L – FEBRUARY 2000 – REVISED SEPTEMBER 2016

9 Power Supply Recommendations

The LM340 is designed to operate from a wide input voltage up to 35 V. Please refer to electrical characteristics
tables for the minimum input voltage required for line/load regulation. If the device is more than six inches from
the input filter capacitors, an input bypass capacitor, 0.1 μF or greater, of any type is needed for stability.

10 Layout

10.1 Layout Guidelines

Some layout guidelines must be followed to ensure proper regulation of the output voltage with minimum noise.
Traces carrying the load current must be wide to reduce the amount of parasitic trace inductance. To improve
PSRR, a bypass capacitor can be placed at the OUTPUT pin and must be placed as close as possible to the IC.
All that is required for the typical fixed output regulator application circuit is the LM340x/LM7805 Family IC and a
0.22-µF input capacitor if the regulator is placed far from the power supply filter. A 0.1-µF output capacitor is
recommended to help with transient response. In cases when VIN shorts to ground, an external diode must be
placed from VOUT to VIN to divert the surge current from the output capacitor and protect the IC.

10.2 Layout Example

Figure 27. Layout Example DDPAK

Copyright © 2000–2016, Texas Instruments Incorporated Submit Documentation Feedback 17

Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815
LM340, LM340A, LM7805, LM7812, LM7815
SNOSBT0L – FEBRUARY 2000 – REVISED SEPTEMBER 2016 www.ti.com

Layout Example (continued)

Figure 28. Layout Example SOT-223

10.3 Heat Sinking DDPAK/TO-263 and SOT-223 Package Parts

Both the DDPAK/TO-263 (KTT) and SOT-223 (DCY) packages use a copper plane on the PCB and the PCB
itself as a heat sink. To optimize the heat sinking ability of the plane and PCB, solder the tab of the plane.
Figure 29 shows for the DDPAK/TO-263 the measured values of θ(J–A) for different copper area sizes using a
typical PCB with 1-oz copper and no solder mask over the copper area used for heat sinking.

Figure 29. θ(J–A) vs Copper (1 Ounce) Area for the DDPAK/TO-263 Package

18 Submit Documentation Feedback Copyright © 2000–2016, Texas Instruments Incorporated

Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815

 LM340, LM340A, LM7805, LM7812, LM7815
www.ti.com SNOSBT0L – FEBRUARY 2000 – REVISED SEPTEMBER 2016

Heat Sinking DDPAK/TO-263 and SOT-223 Package Parts (continued)

As shown in Figure 29, increasing the copper area beyond 1 square inch produces very little improvement. It
should also be observed that the minimum value of θ(J–A) for the DDPAK/TO-263 package mounted to a PCB is
32°C/W.
As a design aid, Figure 30 shows the maximum allowable power dissipation compared to ambient temperature
for the DDPAK/TO-263 device (assuming θ(J–A) is 35°C/W and the maximum junction temperature is 125°C).

Figure 30. Maximum Power Dissipation vs TAMB for the DDPAK/TO-263 Package

Figure 31 and Figure 32 show the information for the SOT-223 package. Figure 31 assumes a θ(J–A) of 74°C/W
for 1-oz. copper and 51°C/W for 2-oz. copper and a maximum junction temperature of 125°C.

Figure 31. θ(J–A) vs Copper (2 Ounce) Area Figure 32. Maximum Power Dissipation vs
for the SOT-223 Package TAMB for the SOT-223 Package

See AN-1028 LMX2370 PLLatinum Dual Freq Synth for RF Pers Comm LMX2370 2.5GHz/1.2GHz (SNVA036)
for power enhancement techniques to be used with the SOT-223 package.

Copyright © 2000–2016, Texas Instruments Incorporated Submit Documentation Feedback 19

Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815
LM340, LM340A, LM7805, LM7812, LM7815
SNOSBT0L – FEBRUARY 2000 – REVISED SEPTEMBER 2016 www.ti.com

11 Device and Documentation Support

11.1 Documentation Support

11.1.1 Related Documentation
For related documentation, see the following:
• AN-1028 LMX2370 PLLatinum Dual Freq Synth for RF Pers Comm LMX2370 2.5GHz/1.2GHz (SNVA036)
• LM140K Series 3-Terminal Positive Regulators (SNVS994)

11.2 Related Links

The table below lists quick access links. Categories include technical documents, support and community
resources, tools and software, and quick access to sample or buy.

Table 1. Related Links

TECHNICAL TOOLS & SUPPORT &
PARTS PRODUCT FOLDER SAMPLE & BUY
DOCUMENTS SOFTWARE COMMUNITY
LM340 Click here Click here Click here Click here Click here
LM340A Click here Click here Click here Click here Click here
LM7805 Click here Click here Click here Click here Click here
LM7812 Click here Click here Click here Click here Click here
LM7815 Click here Click here Click here Click here Click here

11.3 Receiving Notification of Documentation Updates

To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.

11.4 Community Resources

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.

11.5 Trademarks
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
11.6 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.

11.7 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.

20 Submit Documentation Feedback Copyright © 2000–2016, Texas Instruments Incorporated

Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815

 LM340, LM340A, LM7805, LM7812, LM7815
www.ti.com SNOSBT0L – FEBRUARY 2000 – REVISED SEPTEMBER 2016

12 Mechanical, Packaging, and Orderable Information

The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.

Copyright © 2000–2016, Texas Instruments Incorporated Submit Documentation Feedback 21

Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815
 PACKAGE OPTION ADDENDUM

www.ti.com 7-May-2025

PACKAGING INFORMATION

Orderable Status Material type Package | Pins Package qty | Carrier RoHS Lead finish/ MSL rating/ Op temp (°C) Part marking
part number (1) (2) (3) Ball material Peak reflow (6)
(4) (5)

LM340AT-5.0/NOPB Active Production TO-220 (NDE) | 3 45 | TUBE ROHS Exempt SN Level-1-NA-UNLIM 0 to 125 LM340AT
5.0 P+
LM340K-5.0 Active Production TO-3 (NDS) | 2 50 | TRAY NON-STD No Call TI Call TI 0 to 125 LM340K
-5.0 7805P+
LM340K-5.0/NOPB Active Production TO-3 (NDS) | 2 50 | TRAY NON-STD Yes Call TI Level-1-NA-UNLIM 0 to 125 LM340K
-5.0 7805P+
LM340MP-5.0/NOPB Active Production SOT-223 (DCY) | 4 1000 | SMALL T&R Yes SN Level-1-260C-UNLIM 0 to 125 N00A
LM340MPX-5.0/NOPB Active Production SOT-223 (DCY) | 4 2000 | LARGE T&R Yes SN Level-1-260C-UNLIM 0 to 125 N00A
LM340S-12/NOPB Active Production DDPAK/ 45 | TUBE ROHS Exempt SN Level-3-245C-168 HR 0 to 125 LM340S
TO-263 (KTT) | 3 -12 P+
LM340S-5.0/NOPB Active Production DDPAK/ 45 | TUBE ROHS Exempt SN Level-3-245C-168 HR 0 to 125 LM340S
TO-263 (KTT) | 3 -5.0 P+
LM340SX-12/NOPB Active Production DDPAK/ 500 | LARGE T&R ROHS Exempt SN Level-3-245C-168 HR 0 to 125 LM340S
TO-263 (KTT) | 3 -12 P+
LM340SX-5.0/NOPB Active Production DDPAK/ 500 | LARGE T&R ROHS Exempt SN Level-3-245C-168 HR 0 to 125 LM340S
TO-263 (KTT) | 3 -5.0 P+
LM340T-12/NOPB Active Production TO-220 (NDE) | 3 45 | TUBE Yes SN Level-1-NA-UNLIM - LM340T12
7812 P+
LM340T-15/NOPB Active Production TO-220 (NDE) | 3 45 | TUBE Yes SN Level-1-NA-UNLIM 0 to 125 LM340T15
7815 P+
LM340T-5.0/LF01 Active Production TO-220 (NDG) | 3 45 | TUBE ROHS Exempt SN Level-4-260C-72 HR 0 to 125 LM340T5
7805 P+
LM340T-5.0/NOPB Active Production TO-220 (NDE) | 3 45 | TUBE ROHS Exempt SN Level-1-NA-UNLIM 0 to 125 LM340T5
7805 P+
LM7805CT/NOPB Active Production TO-220 (NDE) | 3 45 | TUBE ROHS Exempt SN Level-1-NA-UNLIM 0 to 125 LM340T5
7805 P+
LM7805MP/NOPB Active Production SOT-223 (DCY) | 4 1000 | SMALL T&R Yes SN Level-1-260C-UNLIM 0 to 125 N00A
LM7805MPX/NOPB Active Production SOT-223 (DCY) | 4 2000 | JUMBO T&R Yes SN Level-1-260C-UNLIM 0 to 125 N00A
LM7805S/NOPB Active Production DDPAK/ 45 | TUBE ROHS Exempt SN Level-3-245C-168 HR 0 to 125 LM340S
TO-263 (KTT) | 3 -5.0 P+
LM7805SX/NOPB Active Production DDPAK/ 500 | LARGE T&R ROHS Exempt SN Level-3-245C-168 HR 0 to 125 LM340S
TO-263 (KTT) | 3 -5.0 P+

Addendum-Page 1
 PACKAGE OPTION ADDENDUM

www.ti.com 7-May-2025

Orderable Status Material type Package | Pins Package qty | Carrier RoHS Lead finish/ MSL rating/ Op temp (°C) Part marking
part number (1) (2) (3) Ball material Peak reflow (6)
(4) (5)

LM7812CT/NOPB Active Production TO-220 (NDE) | 3 45 | TUBE Yes SN Level-1-NA-UNLIM 0 to 125 LM340T12
7812 P+
LM7812S/NOPB Active Production DDPAK/ 45 | TUBE ROHS Exempt SN Level-3-245C-168 HR 0 to 125 LM340S
TO-263 (KTT) | 3 -12 P+
LM7812SX/NOPB Active Production DDPAK/ 500 | LARGE T&R ROHS Exempt SN Level-3-245C-168 HR 0 to 125 LM340S
TO-263 (KTT) | 3 -12 P+
LM7815CT/NOPB Active Production TO-220 (NDE) | 3 45 | TUBE Yes SN Level-1-NA-UNLIM 0 to 125 LM340T15
7815 P+

(1)
Status: For more details on status, see our product life cycle.

(2)
Material type: When designated, preproduction parts are prototypes/experimental devices, and are not yet approved or released for full production. Testing and final process, including without
limitation quality assurance, reliability performance testing, and/or process qualification, may not yet be complete, and this item is subject to further changes or possible discontinuation. If available
for ordering, purchases will be subject to an additional waiver at checkout, and are intended for early internal evaluation purposes only. These items are sold without warranties of any kind.

(3)
RoHS values: Yes, No, RoHS Exempt. See the TI RoHS Statement for additional information and value definition.

(4)
Lead finish/Ball material: Parts may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two lines if the
finish value exceeds the maximum column width.

(5)
MSL rating/Peak reflow: The moisture sensitivity level ratings and peak solder (reflow) temperatures. In the event that a part has multiple moisture sensitivity ratings, only the lowest level per
JEDEC standards is shown. Refer to the shipping label for the actual reflow temperature that will be used to mount the part to the printed circuit board.

(6)
Part marking: There may be an additional marking, which relates to the logo, the lot trace code information, or the environmental category of the part.

Multiple part markings will be inside parentheses. Only one part marking contained in parentheses and separated by a "~" will appear on a part. If a line is indented then it is a continuation of the
previous line and the two combined represent the entire part marking for that device.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.

In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

Addendum-Page 2
 PACKAGE MATERIALS INFORMATION

www.ti.com 31-Oct-2024

TAPE AND REEL INFORMATION

REEL DIMENSIONS TAPE DIMENSIONS

K0 P1

B0 W
Reel
Diameter
Cavity A0
A0 Dimension designed to accommodate the component width
B0 Dimension designed to accommodate the component length
K0 Dimension designed to accommodate the component thickness
W Overall width of the carrier tape
P1 Pitch between successive cavity centers

Reel Width (W1)

QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE

Sprocket Holes

Q1 Q2 Q1 Q2

Q3 Q4 Q3 Q4 User Direction of Feed

Pocket Quadrants

*All dimensions are nominal

Device Package Package Pins SPQ Reel Reel A0 B0 K0 P1 W Pin1
Type Drawing Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
LM340MP-5.0/NOPB SOT-223 DCY 4 1000 330.0 16.4 7.0 7.5 2.2 12.0 16.0 Q3
LM340MPX-5.0/NOPB SOT-223 DCY 4 2000 330.0 16.4 7.0 7.5 2.2 12.0 16.0 Q3
LM340SX-12/NOPB DDPAK/ KTT 3 500 330.0 24.4 10.75 14.85 5.0 16.0 24.0 Q2
TO-263
LM340SX-5.0/NOPB DDPAK/ KTT 3 500 330.0 24.4 10.75 14.85 5.0 16.0 24.0 Q2
TO-263
LM7805MP/NOPB SOT-223 DCY 4 1000 330.0 16.4 7.0 7.5 2.2 12.0 16.0 Q3
LM7805MPX/NOPB SOT-223 DCY 4 2000 330.0 16.4 7.0 7.5 2.2 12.0 16.0 Q3
LM7805SX/NOPB DDPAK/ KTT 3 500 330.0 24.4 10.75 14.85 5.0 16.0 24.0 Q2
TO-263
LM7812SX/NOPB DDPAK/ KTT 3 500 330.0 24.4 10.75 14.85 5.0 16.0 24.0 Q2
TO-263

Pack Materials-Page 1
 PACKAGE MATERIALS INFORMATION

www.ti.com 31-Oct-2024

TAPE AND REEL BOX DIMENSIONS

Width (mm)
H
W

*All dimensions are nominal

Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
LM340MP-5.0/NOPB SOT-223 DCY 4 1000 367.0 367.0 35.0
LM340MPX-5.0/NOPB SOT-223 DCY 4 2000 367.0 367.0 35.0
LM340SX-12/NOPB DDPAK/TO-263 KTT 3 500 356.0 356.0 45.0
LM340SX-5.0/NOPB DDPAK/TO-263 KTT 3 500 356.0 356.0 45.0
LM7805MP/NOPB SOT-223 DCY 4 1000 367.0 367.0 35.0
LM7805MPX/NOPB SOT-223 DCY 4 2000 367.0 367.0 35.0
LM7805SX/NOPB DDPAK/TO-263 KTT 3 500 356.0 356.0 45.0
LM7812SX/NOPB DDPAK/TO-263 KTT 3 500 356.0 356.0 45.0

Pack Materials-Page 2
 PACKAGE MATERIALS INFORMATION

www.ti.com 31-Oct-2024

TUBE

T - Tube
height L - Tube length

W - Tube
width

B - Alignment groove width

*All dimensions are nominal

Device Package Name Package Type Pins SPQ L (mm) W (mm) T (µm) B (mm)
LM340AT-5.0/NOPB NDE TO-220 3 45 502 33 6985 4.06
LM340S-12/NOPB KTT TO-263 3 45 502 25 8204.2 9.19
LM340S-5.0/NOPB KTT TO-263 3 45 502 25 8204.2 9.19
LM340T-12/NOPB NDE TO-220 3 45 502 33 6985 4.06
LM340T-15/NOPB NDE TO-220 3 45 502 33 6985 4.06
LM340T-5.0/LF01 NDG TO-220 3 45 502 25 8204.2 9.19
LM340T-5.0/NOPB NDE TO-220 3 45 502 33 6985 4.06
LM7805CT/NOPB NDE TO-220 3 45 502 33 6985 4.06
LM7805S/NOPB KTT TO-263 3 45 502 25 8204.2 9.19
LM7812CT/NOPB NDE TO-220 3 45 502 33 6985 4.06
LM7812S/NOPB KTT TO-263 3 45 502 25 8204.2 9.19
LM7815CT/NOPB NDE TO-220 3 45 502 33 6985 4.06

Pack Materials-Page 3
 PACKAGE MATERIALS INFORMATION

www.ti.com 31-Oct-2024

TRAY

L - Outer tray length without tabs KO -

Outer
tray
height

W-
Outer
tray
width
Text

P1 - Tray unit pocket pitch

CW - Measurement for tray edge (Y direction) to corner pocket center
CL - Measurement for tray edge (X direction) to corner pocket center

Chamfer on Tray corner indicates Pin 1 orientation of packed units.

*All dimensions are nominal

Device Package Package Pins SPQ Unit array Max L (mm) W K0 P1 CL CW
Name Type matrix temperature (mm) (µm) (mm) (mm) (mm)
(°C)
LM340K-5.0 NDS TO-CAN 2 50 9X6 NA 292.1 215.9 25654 3.87 22.3 25.4
LM340K-5.0/NOPB NDS TO-CAN 2 50 9X6 NA 292.1 215.9 25654 3.87 22.3 25.4

Pack Materials-Page 4
 MECHANICAL DATA
NDE0003B

www.ti.com
 PACKAGE OUTLINE
KTT0003B SCALE 1.000
TO-263 - 4.83 mm max height
TRANSISTOR OUTLINE

B 8.64 A
OPTIONAL

2X 2.54
10.41
9.91

3
0.97
3X
0.71
0.25 C A B

14.35 MAX

1.27 MAX
0.76
0.38

0.25 4.64
GAGE PLANE 4.45 C

0.25 1.32
2.24 0.00 1.22
0 -8 1.24

5.08 MIN

0 -8 3

4 5.08 MIN
0.25
2.24 GAGE PLANE
1.24 1

OPTIONAL LEAD FORM

EXPOSED
THERMAL PAD NOTE 3
NOTE 3

4215105/C 08/2024

NOTES:

1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. Features may not exist and shape may vary per different assembly sites.
4. Reference JEDEC registration TO-263, except minimum lead thickness and minimum exposed pad length.

www.ti.com
 EXAMPLE BOARD LAYOUT
KTT0003B TO-263 - 4.83 mm max height
TRANSISTOR OUTLINE

(6.99)

(1.91)

3X (2.16)
3X (1.07)
1

(2.54)
SYMM (10.8)
4
(8.33)

(R0.05) TYP

(14.17)

LAND PATTERN EXAMPLE

EXPOSED METAL SHOWN
SCALE:5X

0.07 MAX 0.07 MIN

ALL AROUND ALL AROUND
EXPOSED
METAL
EXPOSED
METAL
SOLDER MASK METAL SOLDER MASK
OPENING METAL UNDER OPENING
SOLDER MASK
NON SOLDER MASK SOLDER MASK
DEFINED DEFINED

SOLDER MASK DETAILS

4215105/C 08/2024

NOTES: (continued)

5. This package is designed to be soldered to a thermal pad on the board. For more information, see Texas Instruments literature numbers
SLMA002(www.ti.com/lit/slm002) and SLMA004 (www.ti.com/lit/slma004).
6. Vias are optional depending on application, refer to device data sheet. It is recommended that vias under paste be filled, plugged or tented.

www.ti.com
 EXAMPLE STENCIL DESIGN
KTT0003B TO-263 - 4.83 mm max height
TRANSISTOR OUTLINE

(1.29) TYP (0.91)

32X ( 1.09) (1.29)

3X (2.16)
3X (1.07)
1
(1.29) TYP

(4.515)
(2.54)
SYMM
4

EXPOSED METAL
3 TYP
(R0.05) TYP

14.17

SOLDER PASTE EXAMPLE

BASED ON 0.125 mm THICK STENCIL

EXPOSED PAD
60% PRINTED SOLDER COVERAGE BY AREA
SCALE:6X

4215105/C 08/2024

NOTES: (continued)

7. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
8. Board assembly site may have different recommendations for stencil design.

www.ti.com
 PACKAGE OUTLINE
NDS0002A SCALE 0.500
TO-CAN - 8.94 mm max height
TRANSISTOR OUTLINE

1.177-1.197
[29.9-30.4]
2X R .495-.510
[12.57-12.95]

2X .151-.161
[3.84-4.09]

.980-1.020
[24.89-25.91]

2X R.168-.178
[4.27-4.52]

.880-.915
[22.35-23.24]
.760-.775
[19.30-19.69]

SEATING PLANE
.325-.352
[8.26-8.94]

.060-.070 .116 MAX

[1.52-1.78] [2.95]
.420-.500
UNCONTROLLED LEAD DIA
[10.67-12.70]
.025 [0.64] MAX
(MIL/AERO)
.055 [1.397] MAX
(COMMERCIAL)

2X .038-.043
[0.97-1.09]

.425-.435
[10.80-11.05]

.210-.220
[5.33-5.59]

.660-.670
[16.76-17.02]

4214773/B 09/2024

NOTES:

1. Linear dimensions are in inches [millimeters]. Dimensions in parenthesis are for reference only. Controlling dimensions are in inches.
Dimensioning and tolerancing per ASME Y14.5M.
2. This drawing is subject to change without notice.

www.ti.com
 MECHANICAL DATA

MPDS094A – APRIL 2001 – REVISED JUNE 2002

DCY (R-PDSO-G4) PLASTIC SMALL-OUTLINE

6,70 (0.264)
6,30 (0.248)
3,10 (0.122)
2,90 (0.114)
4
0,10 (0.004) M

7,30 (0.287) 3,70 (0.146)

6,70 (0.264) 3,30 (0.130)

Gauge Plane
1 2 3
0,25 (0.010)
0,84 (0.033) 0°–10°
2,30 (0.091)
0,66 (0.026)
0,10 (0.004) M
4,60 (0.181) 0,75 (0.030) MIN

1,70 (0.067)
1,80 (0.071) MAX 1,50 (0.059)
0,35 (0.014)
0,23 (0.009)
Seating Plane

0,10 (0.0040) 0,08 (0.003)

0,02 (0.0008)

4202506/B 06/2002

NOTES: A. All linear dimensions are in millimeters (inches).

B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion.
D. Falls within JEDEC TO-261 Variation AA.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

 PACKAGE OUTLINE
NDG0003F TO-220 - 4.69 mm max height
TRANSISTOR OUTLINE

.640 MAX
[16.26]
.110 .010
.340 .010 [2.8 0.25]
PIN 1 ID [8.64 0.25]

.100 .010
[2.54 0.25] +.015
2 .400
-.005
.200 .010
[5.08 0.25] [ 10.16
+0.38
-0.12 ]
3
3X .048-.055 3X .032 .005
[1.22-1.39] [0.81 0.12]
.151 .002
[3.84 0.05]
7.0
7
.035 .010
.250 .010
[0.89 0.25]
[6.35 0.25]
+.010
R.025
-.005

[
0.64
+0.25
-0.12 ] .180 .005
[4.57 0.12]

+.007 0 -6 .050 .002

.015 TAPER [1.27 0.05]
-.001 SIDES 1
[0.38
+0.17
-0.02 ] .055 .010
[1.4 0.25]
.015-.030
[0.38-0.75]
SEATING PLANE

.328 .004 (.300 )

[8.32 0.1] 2
[7.62]

.187 .006
[4.76 0.15]
(.479 )
[12.16]
4219861/A 01/2022

NOTES:

1. All controlling linear dimensions are in inches. Dimensions in brackets are in millimeters. Any dimension in brackets or parenthesis are for
reference only. Dimensioning and tolerancing per ASME Y14.5M.
2. This drawing is subject to change without notice.

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 EXAMPLE BOARD LAYOUT
NDG0003F TO-220 - 4.69 mm max height
TRANSISTOR OUTLINE

(.479 )
[12.16]

(.177) 4X (.047)
[4.5] [1.2]

(.229 )
3X (.110) [5.81] ( .008) TYP VIA
[2.8] [0.2]
PKG

3X (.039)
[1]
1

(.328 )
2X (.100 ) [8.32]
[2.54] PKG
2 SYMM
(.400 )
[10.16]

3 6X (.050 ) 8X (.046 )
[1.27] [1.18]
(R.002 ) TYP
[0.05]

(.059 ) 2X
[1.49] (.054 )
(.305 ) [1.37]
[7.74]
(.002 )
[0.05]

LAND PATTERN EXAMPLE

EXPOSED METAL SHOWN
SCALE: 5X

.003 MAX METAL EDGE .003 MIN METAL UNDER

[0.07] [0.07] SOLDER MASK
ALL AROUND ALL AROUND

EXPOSED EXPOSED
METAL METAL

SOLDER MASK SOLDER MASK

OPENING OPENING

NON SOLDER MASK SOLDER MASK

DEFINED DEFINED
SOLDER MASK DETAILS

4219861/A 01/2022

NOTES: (continued)

3. This package is designed to be soldered to a thermal pad on the board. For more information, see Texas Instruments literature numbers
SLMA002(www.ti.com/lit/slm002) and SLMA004 (www.ti.com/lit/slma004).
4. Vias are optional depending on application, refer to device data sheet. It is recommended that vias under paste be filled, plugged or tented.

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 EXAMPLE STENCIL DESIGN
NDG0003F TO-220 - 4.69 mm max height
TRANSISTOR OUTLINE

24X (.046 )
[1.17]
3X (.110) 40X (.039)
[2.8] PKG [1] 40X (.039 )
3X (.039) [0.98]
24X (.042 )
[1]
[1.07]
1

(.025 ) (.023 )
2X (.100 ) [0.64] [0.59]
[2.54] PKG
2 SYMM

3 5X
(.050 ) 7X (.046 )
[1.27] [1.18]
(R.002 ) TYP
[0.05]
(.025 )
[0.64]
3X (.054 )
[1.37]
(.305 ) (.201) 4X (.047)
[7.74] [5.1] [1.2]

SOLDER PASTE EXAMPLE

BASED ON 0.125 mm THICK STENCIL

EXPOSED PAD
61% PRINTED SOLDER COVERAGE BY AREA UNDER PACKAGE
SCALE: 5X

4219861/A 01/2022

NOTES: (continued)

5. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
6. Board assembly site may have different recommendations for stencil design.

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