Advanced AMS78LXX
Monolithic 100mA VOLTAGE REGULATOR
Systems
FEATURES APPLICATIONS
• 5.0V, 6.2V and 8.0V Output Voltage Available* • Battery Powered Systems
• Output Voltage Tolerance of ± 5% Over Temperature • Portable Consumer Equipment
• Output Current in excess of 100mA • Cordless Telephones
• Internal Thermal Overload Protection • Portable (Notebook) Computers
• Overvoltage Protection • Portable Instrumentation
• Short Circuit protection • Radio Control Systems
• TO-92, SO-8 and SOT-89 Packages Available • Logic Systems
GENERAL DESCRIPTION
The AMS78LXX series consists of positive fixed voltage regulators ideally suited for use in battery-powered systems. These
devices feature very low quiescent current of 1mA or less when supplying 10mA loads. This unique characteristic and the low
input -output differential of less than 1V required for proper regulation, make the AMS78LXX ideal to use for standby power
systems and portable equipment.
The AMS78LXX series also includes internal current limiting, over voltage protection, thermal shutdown, and is able to
withstand temporary power-up with mirror-image insertion.
The AMS78LXX series is offered in the 3-pin TO-92 package, 8-pin plastic SOIC and SOT-89 packages.
ORDERING INFORMATION
OUTPUT PACKAGE TYPE OPER. TEMP
VOLTAGE* TO-92 8 LEAD SOIC SOT-89 RANGE
5.0V AMS78L05N AMS78L05S AMS78L05L IND
6.2V AMS78L62N AMS78L62S AMS78L62L IND
8.0V AMS78L08N AMS78L08S AMS78L08L IND
* For other fixed voltages consult factory.
PIN CONNECTION
TO-92 8L SOIC SOT-89 Package
Plastic Package (N) SO-Package (S) (L)
OUTPUT INPUT
OUTPUT 1 8 INPUT
GROUND 2 7 GROUND
GROUND 3 6 GROUND
GND 1 2 3
N/C 4 5 N/C
INPUT GND OUTPUT
Bottom View Top View Front View
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
This datasheet has been downloaded from http://www.digchip.com at this page
AMS78LXX
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Voltage 24V Storage Temperature -65°C to +150°C
Power Dissipation (Note 4) Internally Limited Lead Temperature (Soldering 10 sec) 230°C
Operating Junction Temperature 0°C to +125°C ESD 1000V
ELECTRICAL CHARACTERISTICS
AMS78L05
Electrical Characteristics at VIN =10V, IO =10mA, TJ=25°C, C1=0.33µF, CO = 10µF unless otherwise specified.
PARAMETER CONDITIONS Min. Typ. Max. Units
(Note 2)
Output Voltage 4.80 5.0 5.2 V
7V ≤V ≤20V, IO=100 mA
IN 4.75 5.25 V
-40°C ≤T ≤125°C
J
Line Regulation 7V ≤V ≤ 20V 18 75 mV
IN
8V ≤V ≤ 20V 10 54
IN
Load Regulation 1mA ≤I ≤ 100 mA 20 60 mV
O
1mA ≤I ≤ 40 mA 5 30
O
Quiescent Current 0.6 1.0 mA
Output Noise Voltage 10Hz-100kHz 40 µV
Peak Output Current 200 mA
Average Output Voltage Tempco I = 5 mA -0.65 mV/°C
O
Ripple Rejection fO = 120Hz
47 62 dB
8V ≤V ≤ 16V
IN
Minimum Value of Input Voltage 5.6 6.0 V
Required to Maintain Line Regulation
AMS78L62
Electrical Characteristics at VIN =12V, IO =10mA, TJ=25°C, C1=0.33µF, CO = 10µF unless otherwise specified.
PARAMETER CONDITIONS Min. Typ. Max. Units
(Note 2)
Output Voltage 5.95 6.2 6.45 V
8.5V ≤V ≤20V, IO=100 mA
IN 5.9 6.5 V
-40°C ≤T ≤125°C
J
Line Regulation 8.5V ≤V ≤ 20V 65 175 mV
IN
9V ≤V ≤ 20V 55 125
IN
Load Regulation 1mA ≤I ≤ 100 mA 13 80 mV
O
1mA ≤I ≤ 40 mA 6 40
O
Quiescent Current 0.6 1.0 mA
Output Noise Voltage 10Hz-100kHz 50 µV
Peak Output Current 200 mA
Average Output Voltage Tempco I = 5 mA -0.75 mV/°C
O
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS78LXX
ELECTRICAL CHARACTERISTICS (Continued)
AMS78L62
Electrical Characteristics at VIN =12V, IO =10mA, TJ=25°C, C1=0.33µF, CO = 10µF unless otherwise specified.
PARAMETER CONDITIONS Min. Typ. Max. Units
(Note 2)
Ripple Rejection fO = 120Hz
40 46 dB
10V ≤V ≤ 20V
IN
Minimum Value of Input Voltage 6.8 7.0 V
Required to Maintain Line Regulation
AMS78L08
Electrical Characteristics at VIN =14V, IO =10mA, TJ=25°C, C1=0.33µF, CO = 10µF unless otherwise specified.
PARAMETER CONDITIONS Min. Typ. Max. Units
(Note 2)
Output Voltage 7.60 8.0 8.40 V
11V ≤V ≤23V, IO=100 mA
IN 7.60 8.40 V
-40°C ≤T ≤125°C
J
Line Regulation 11V ≤V ≤ 23V 80 175 mV
IN
12V ≤V ≤ 23V 70 125
IN
Load Regulation 1mA ≤I ≤ 100 mA 15 80 mV
O
1mA ≤I ≤ 40 mA 8 40
O
Quiescent Current 0.6 1.0 mA
Output Noise Voltage 10Hz-100kHz 60 µV
Peak Output Current 200 mA
Average Output Voltage Tempco I = 5 mA -0.78 mV/°C
O
Ripple Rejection fO = 120Hz
39 45 dB
12V ≤V ≤ 22V
IN
Minimum Value of Input Voltage 9.0 9.5 V
Required to Maintain Line Regulation
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. For guaranteed performance limits and associated test conditions, see
the Electrical Characteristics tables.
Note 2: See Circuit in Typical Applications. To ensure constant junction temperature, low duty cycle pulse testing is used.
Note 3: Limits appearing in boldface type apply over the entire junction temperature range for operation. Limits appearing in normal type apply for TA = TJ =
25°C.
Note 4: The junction-to-ambient thermal resistance are as follows: 195°C/W for the TO-92 (N) package, 160°C/W for the molded plastic SO-8 (S), 150°C/W for
the SOT-89 package.
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS78LXX
TYPICAL PERFORMANCE CHARACTERISTICS
Dropout Voltage Peak Output Current Low Voltage Behavior
0.6 600 6.0
INPUT OUTPUT DIFFERENTIAL (V)
AMS78L05
IO = 100mA
500
OUTPUT CURRENT (mA)
0.5 5.0
OUTPUT VOLTAGE (V)
TJ= 25°C
IO = 100mA
0.4 400
TJ = 85°C 4.0
0.3 300
TJ = -40°C
3.0
0.2 200
2.0
0.1 100
0 0 0
0 40 80 120 0 10 20 30 2.0 3.0 4.0 5.0 6.0
JUNCTION TEMPERATURE (° C) INPUT VOLTAGE (V) INPUT VOLTAGE (V)
Output at Voltage Extremes Line Transient Response Load Transient Response
OUTPUT VOLTAGE
DEVIATION (mV)
INPUT VOLTAGE OUTPUT VOLTAGE
12
DEVIATION (mV)
AMS78L05 3 VIN = V OUT = 9V 40 C2= 100µF
C2= 100 µF
10 RL=500Ω 2
OUTPUT VOLTAGE (V)
1 0
8
0
6 -1 -40
LOAD CURRENT(mA)
-2
4 ~
-3 ~
~
~
~
~ ~
~
CHANGE (V)
2
150
0 3
-2 0 0
-20 -10 0 10 20 30 40 50 60 0 15 30 45 0 15 30 45
INPUT VOLTAGE (V) TIME (µs) TIME (µs)
Quiescent Current Quiescent Current Quiescent Current
35 30 25
5V OUTPUT
30 VIN = 14V
QUIESCENT CURRENT (mA)
QUIESCENT CURRENT (mA)
QUIESCENT CURRENT (mA)
25 20
25
15
20
20
10
15 15 ~
~ ~
~
IO= 100mA 3 IO = 50mA
10
10
5 IO= 50mA 2
0 5 1 IO = 0mA
-5 0 0
-20 -10 0 10 20 30 40 50 60 0 30 60 90 -40 0 40 80 120
INPUT VOLTAGE (V) OUTPUT CURRENT (mA) TEMPERATURE (° C)
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS78LXX
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Maximum Power Dissipation (SO-8) Maximum Power Dissipation (SOT-89) Maximum Power Dissipation (TO-92)
1.0 2.2 1.0
0.9 2.0 0.9
POWER DISSIPATION (W)
POWER DISSIPATION (W)
POWER DISSIPATION (W)
0.8 1.8 0.8
0.7 1.6 0.7
0.6 1.4 0.6 0.125" Lead Lenght
from PC Board
1.2
0.5 0.5 0.4" Lead
1.0
0.4 0.4 Lenght from
0.8 PC Board
0.3 0.6 0.3
0.2 0.4 0.2
0.1 0.2 0.1
0 0 0
0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80
AMBIENT TEMPERATURE (° C) AMBIENT TEMPERATURE (° C) AMBIENT TEMPERATURE (° C)
TYPICAL APPLICATIONS
Fixed Output Regulator
VIN VOUT
UNREGULATED AMS78LXX REGULATED
INPUT OUTPUT
C1* GND C2**
0.33µF IQ 10µF
*Required if regulator is located far from power supply filter.
**C2 must be at least 10µF to maintain stability; it can be increased without bound to maintain regulation during transients and it should be
located as close as possible to the regulator. This capacitor must be rated over the same operating temperature range like the regulator.
Current Regulator
INPUT AMS78LXX
C1 R1
0.33µF
OUTPUT
IOUT
IOUT = (VOUT/R1)+IQ
>IQ = 1.5mA over line and load changes
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS78LXX
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
3 LEAD TO-92 PLASTIC PACKAGE (N)
0.180±0.005
0.060±0.005 (4.572±0.127)
(1.524±0.127)
DIA
0.060±0.010
0.90 (1.524±0.254)
(2.286)
0.180±0.005 NOM
(4.572±0.127) 0.140±0.010
(3.556±0.127)
10°
5° NOM NOM
0.500
(12.70)
MIN 0.050 UNCONTROLLED
(1.270) LEAD DIMENSIONS
MAX
0.015±0.002 N (TO-92 ) AMS DRW# 042391
(0.381±0.051)
0.016±0.003
(0.406±0.076)
0.050±0.005
(1.270±0.127)
8 LEAD SOIC PLASTIC PACKAGE (S)
0.189-0.197*
(4.801-5.004)
8 7 6 5
0.228-0.244 0.150-0.157**
(5.791-6.197) (3.810-3.988)
1 2 3 4
0.010-0.020 x 45°
0.053-0.069 (0.254-0.508)
(1.346-1.752)
0.004-0.010
(0.101-0.254) 0.008-0.010
(0.203-0.254) 0°-8° TYP
0.014-0.019 0.050 0.016-0.050
(0.355-0.483) (1.270) (0.406-1.270) S (SO-8 ) AMS DRW# 042293
TYP
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS78LXX
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued).
SOT-89 PLASTIC PACKAGE (L)
0.173-0.181
(4.40-4.60)
0.055-0.063
(1.40-1.60)
0.064-0.072 0.014-0.017
(1.62-1.83) (0.35-0.44)
0.155-0.167
(3.94-4.25)
0.090-0.102 0.084-0.090
(2.29-2.60) (2.13-2.29)
0.035-0.047
(0.89-1.20)
0.059 0.014-0.019
(1.50) (0.36-0.48)
BSC 0.017-0.022
(0.44-0.56) L (SOT-89 ) AMS DRW# 042392
0.118
(3.00)
BSC
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
