150mA Low Noise LDO Regulator TPS761xx

FEATURES
• Guaranteed Output Current of 150mA
• Highly Output Accuracy: ±1.0%
• Low Quiescent Current
• Very Low Dropout Voltage
• Ultra Low Noise Output
• Excellent Line and Load Regulation
• Fixed Output Voltage: 1.2V, 1.8V, 2.5V, and 3.3V
• Adjustable Output Voltage: 1.5V to 12V
• Logic Controlled Shutdown Option SOT-23-5L
• Stable with Low ESR MLCC
• Over Current Protection
• Over Temperature Protection
• Available in SOT-23-5L Package

APPLICATIONS ORDERING INFORMATION

• Mobile Phones and Smart Phones Device Package

• Digital Cameras and Camcorders TPS761xxSF5 SOT-23-5L
• Portable Communication Devices
xx: Output Voltage
• GPS, PDAs and handhelds
• Battery-Powered Devices
• SMPS Post-regulator/DC to DC Modules
• High-efficiency Linear Power Supplies

DESCRIPTION
The TPS761xx is an efficient linear voltage regulator with
ultra-low noise output, very low dropout voltage, and very
low ground current.
The TPS761xx offers better than 1% initial accuracy.
Designed especially for hand-held, battery-powered
devices, the TPS761xx includes a CMOS or TTL
compatible enable/shutdown control input. When
shutdown, power consumption drops nearly to zero.
Regulator ground current increases only slightly in
dropout, further prolonging battery life.
Key TPS761xx features include reversed-battery
protection, current limiting, and over temperature
shutdown.
The TPS761xx is available in fixed and adjustable output
voltage versions in SOT-23-5 package. The maximum
output voltage of the adjustable type is 12V.

Dec. 2021 – R1.0.4 1/10 HTC

150mA Low Noise LDO Regulator TPS761xx
ABSOLUTE MAXIMUM RATINGS (Note 1)

CHARACTERISTIC SYMBOL MIN MAX UNIT

Input Supply Voltage (Survival) VIN −0.3 20 V

Enable Input Voltage (Survival) VEN −0.3 20 V

Operating Junction Temperature Range TJOPR −40 125 °C

Storage Temperature Range TSTG −65 150 °C

RECOMMENDED OPERATING RATINGS (Note 2)

CHARACTERISTIC SYMBOL MIN MAX UNIT

Input Supply Voltage VIN 2.0 16 V

Enable Input Voltage VEN 0 VIN V

ORDERING INFORMATION

VOUT Package Order No. Description Supplied As Status

ADJ SOT-23-5L TPS76101SF5 Enable, Adjustable Tape & Reel Contact Us

2.5V SOT-23-5L TPS76125SF5 Enable Tape & Reel Contact Us

2.8V SOT-23-5L TPS76128SF5 Enable Tape & Reel Contact Us

3.0V SOT-23-5L TPS76130SF5 Enable Tape & Reel Contact Us

3.3V SOT-23-5L TPS76133SF5 Enable Tape & Reel Active

3.6V SOT-23-5L TPS76136SF5 Enable Tape & Reel Contact Us

5.0V SOT-23-5L TPS76150SF5 Enable Tape & Reel Contact Us

Dec. 2021 – R1.0.4 2/10 HTC

150mA Low Noise LDO Regulator TPS761xx
PIN CONFIGURATION

OUT N.C. / ADJ

5 4

1 2 3
IN GND EN

SOT-23-5L

PIN DESCRIPTION

Pin No. Pin Name Pin Function

1 IN Input Voltage.

2 GND Ground.

3 EN Enable Voltage. Do Not Float.

N.C. No Connection for Fixed Output Version.

4
Output Voltage Adjustable Input for Adjustable Output Version.
ADJ
Connect an external voltage divider to determine the output voltage.

5 OUT Output Voltage.

Dec. 2021 – R1.0.4 3/10 HTC

150mA Low Noise LDO Regulator TPS761xx
TYPICAL APPLICATION CIRCUIT

VIN IN OUT VOUT

Fixed
EN N.C.
CIN GND COUT

VIN IN OUT VOUT

Fixed
VEN EN N.C.
GND COUT
CIN

VIN IN OUT VOUT

Adjustable R1
VEN EN ADJ
CIN GND R2 COUT

VIN IN OUT VOUT

Fixed
EN N.C.
1μF GND 1µF

* For the details, see Application Information.

** TPS761xx can deliver a continuous current of 150 mA over the full operating temperature. However, the output
current is limited by the restriction of power dissipation which differs from packages. A heat sink may be required
depending on the maximum power dissipation and maximum ambient temperature of application. With respect to the
applied package, the maximum output current of 150 mA may be still undeliverable.

Dec. 2021 – R1.0.4 4/10 HTC

150mA Low Noise LDO Regulator TPS761xx
ELECTRICAL CHARACTERISTICS
Limits in standard typeface are for TJ = 25ºC, and limits in boldface type apply over the full operating temperature range.
VIN = VOUT(NOM) + 1.0 V or VIN = 2.0 V, whichever is greater; IOUT = 100 µA, CIN = COUT = 1.0 µF, unless otherwise specified.

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

−1 1
Output Voltage Tolerance VOUT (VOUT + 1.0 V) < VIN < 6.5 V 0 %
−2 2
1.230 1.254
Adjustable Pin Voltage VADJ 1.242 V
1.217 1.267
0.012
Line Regulation LNR (VOUT + 1.0 V) < VIN < 6.5 V - 0.004 %/V
0.05
0.2
100 µA ≤ IOUT ≤ 150 mA
(Note 3)
Load Regulation LDR - 0.02 %
0.5
50
IOUT = 100 µA - 10
70
150
IOUT = 50 mA - 110
230
Dropout Voltage VDROP mV
250
IOUT = 100 mA - 140
300
275
IOUT = 150 mA - 165
350

Current Limit ICL VOUT = 0 V - 320 600 mA

160
IOUT = 100 µA - 120
180
600
IOUT = 50 mA - 350
800
Ground Current IGND µA
1000
IOUT = 100 mA - 600
1500
1900
IOUT = 150 mA - 1300
2500
1.0
Shutdown Current ISD VEN ≤ 0.4 V - 0.01 µA
5.0
EN Threshold Logic Low VENL Output = Low - - 0.4 V

EN Threshold Logic High VENH Output = High 2.0 - - V

1.0
EN Input Current Low IENL VEN ≤ 0.4 V - 0.01 µA
2.0
35
EN Input Current High IENH VEN ≥ 2.0 V 2.0 5.0 µA
40
ΔVOUT/ΔT
(Note 4)
VOUT Temperature Coefficient - 40 - ppm/°C

Power Supply Ripple Rejection PSRR IOUT = 100 µA, f = 100Hz - 75 - dB

Note 1. Exceeding the absolute maximum ratings may damage the device.
Note 2. The device is not guaranteed to function outside its operating ratings.
Note 3. Regulation is measured at constant junction temperature using low duty cycle pulse testing.
Note 4. Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature
range.

Dec. 2021 – R1.0.4 5/10 HTC

150mA Low Noise LDO Regulator TPS761xx
TYPICAL OPERATING CHARACTERISTICS

Dec. 2021 – R1.0.4 6/10 HTC

150mA Low Noise LDO Regulator TPS761xx

Dec. 2021 – R1.0.4 7/10 HTC

150mA Low Noise LDO Regulator TPS761xx
APPLICATION INFORMATION

The TPS761xx consists of a high-precision voltage reference, an error correction circuit, and a current limited
output driver. With good transient responses, output remains stable even during load changes. The EN input
enables the output to be turned off, resulting in reduced power consumption. The TPS761xx incorporates both
over-temperature and over-current protection.

INPUT CAPACITOR
An input capacitor of minimum 1.0 μF of MLCC is recommended. Larger values will help to improve ripple
rejection by bypassing the input to the regulator, further improving the integrity of the output voltage. X7R or
X5R dielectrics are recommended and it should be placed as close as to the IN pin as possible.

OUTPUT CAPACITOR
The TPS761xx requires a minimum output capacitance maintain stability. The TPS761xx is designed to be
stable with a MLCC with very low equivalent series resistance (ESR). A 1.0 μF of MLCC would satisfy most
applications. Larger values and lower ESR improves dynamic performance. X7R or X5R dielectrics are
recommended to maintain sufficient capacitance over its full operating temperature. It should be placed as close
as OUT pin as possible.

OUTPUT ADJUSTMENT
The operating condition of VIN and the operating characteristics of VOUT depend on the dropout voltage
performance in accordance with output load current.

VIN IN OUT VOUT

Adjustable R1
VEN EN ADJ
CIN GND R2 COUT

VOUT = VADJ (1 + R2 / R1)

MAXIMUM OUPUT CURRENT CAPABILITY

The TPS761xx can deliver a continuous current of 150mA over the full operating junction temperature range.
However, the output current is limited by the restriction of power dissipation of package. With respect to the
applied package, the maximum output current of 150mA may be still undeliverable due to the restriction of the
power dissipation of TPS761xx. Under all possible conditions, the junction temperature must be within the range
specified under operating conditions.
The temperatures over the device are given by:

TC = TA + PD × θCA
TJ = TC + PD × θJC

Dec. 2021 – R1.0.4 8/10 HTC

150mA Low Noise LDO Regulator TPS761xx
TJ = TA + PD × θJA

where TJ is the junction temperature, TC is the case temperature, TA is the ambient temperature, PD is the total
power dissipation of the device, θCA is the thermal resistance of case-to-ambient, θJC is the thermal resistance of
junction-to-case, and θJA is the thermal resistance of junction to ambient.
The total power dissipation of the device is given by:

PD = PIN – POUT = (VIN × IIN) – (VOUT × IOUT)

= (VIN × (IOUT + IGND)) – (VOUT × IOUT) = (VIN − VOUT) × IOUT + VIN × IGND

where IGND is the operating ground current of the device which is specified at the Electrical Characteristics. The
maximum allowable temperature rise (TRmax) depends on the maximum ambient temperature (TAmax) of the
application, and the maximum allowable junction temperature (TJmax):

TRmax = TJmax – TAmax

The maximum allowable value for junction-to-ambient thermal resistance, θJA, can be calculated using the formula:

θJA = TRmax / PD

If proper cooling solution such as copper plane area or air flow is applied, the maximum allowable power
dissipation could be increased. However, if the ambient temperature is increased, the allowable power
dissipation would be decreased.

Dec. 2021 – R1.0.4 9/10 HTC

150mA Low Noise LDO Regulator TPS761xx
REVISION NOTICE

The description in this data sheet is subject to change without any notice to describe its electrical characteristics
properly.

Dec. 2021 – R1.0.4 10/10 HTC