TL750L, TL751L SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS017I – SEPTEMBER 1987 – REVISED JULY 1999
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Very Low Dropout Voltage, Less Than 0.6 V
at 150 mA
D
Very Low Quiescent Current
D
TTL- and CMOS-Compatible Enable on
TL751L Series
D
60-V Load-Dump Protection
D
Reverse Transient Protection Down to
–50 V
D
Internal Thermal-Overload Protection
D
Overvoltage Protection
D
Internal Overcurrent-Limiting Circuitry
D
Less Than 500-µA Disable (TL751L Series)
DEVICE
COMPONENT
COUNT
Transistors 20
JFETs 2
Diodes 5
Resistors 16
description
The TL750L and TL751L series are low-dropout positive-voltage regulators specifically designed for
battery-powered systems. These devices incorporate overvoltage and current-limiting protection circuitry,
along with internal reverse-battery protection circuitry to protect the devices and the regulated system. The
series is fully protected against 60-V load-dump and reverse-battery conditions. Extremely low quiescent
current during full-load conditions makes these devices ideal for standby power systems.
The TL750L and TL751L series of fixed-output voltage regulators offers 5-V, 8-V , 10-V, and 12-V options. The
TL751L series has the addition of an enable (ENABLE
) input. When ENABLE is high, the regulator output is
placed in the high-impedance state. This gives the designer complete control over power up, power down, or
emergency shutdown.
Copyright 1999, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
OUTPUT
NC
NC
NC
INPUT
NC
COMMON
NC
8
7
6
5
OUTPUT
COMMON
COMMON
NC
INPUT
COMMON
COMMON
NC
TL750L ...D PACKAGE
(TOP VIEW)
The common terminal is in electrical
contact with the mounting base.
TO-226AA
TL750L . . . KC PACKAGE
(TOP VIEW)
TL750L . . . LP PACKAGE
(TOP VIEW)
OUTPUT
COMMON
COMMON
NC
INPUT
COMMON
COMMON
ENABLE
OUTPUT
NC
NC
NC
INPUT
NC
COMMON
ENABLE
TL750L ...P PACKAGE
(TOP VIEW)
TL751L ...D PACKAGE
(TOP VIEW)
TL751L ...P PACKAGE
(TOP VIEW)
TO-220AB
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
OUTPUT
COMMON
INPUT
INPUT
COMMON
OUTPUT
NC – No internal connection