2.00

1.75

1.50

1.25

1.00

0.75

0.50

-40

-15

10

35

Free-AirTemperature( C)

°

60

85

V =4.3V

I

V =3.3V

O

C =1mF

O

I =10mA

O

DCKPACKAGE

(TopView)

1

PG

GND

NC

OUT

IN

5

4

3

2

TPS797xx

www.ti.com

SLVS332H – MARCH 2001 – REVISED APRIL 2012

in SC70 Package

Check for Samples: TPS797xx

1

FEATURES

DESCRIPTION

The TPS797xx family of low-dropout (LDO) voltage

2

•

50mA Low-Dropout Regulator

regulators offers the benefits of low-dropout voltage

•

Ultralow 1.2

μA Quiescent Current at 10mA

and ultralow-power operation. The device is stable

•

5-Pin SC70 (DCK) Package

with

any

capacitor

(> 0.47

μF).

Therefore,

implementations of this device require very little board

•

Integrated Power Good Output

space

due

to

the

miniaturized

packaging

and

•

Stable With Any Capacitor (> 0.47

μF)

potentially small output capacitor. In addition, the

•

Dropout Voltage Typically 105mV at 10mA

family includes an integrated open drain active-high

(TPS79733)

power good (PG) output. Intended for use in

microcontroller-based, battery-powered applications,

•

Over-Current Limitation

the TPS797xx family low dropout and ultralow-

•

–40°C to +85°C Operating Junction

powered operation results in a significant increase in

Temperature Range

system battery operating life. The small packaging

minimizes consumption of board space.

APPLICATIONS

The device is enabled when the applied voltage

•

Battery-Powered Microcontrollers and

exceeds the minimum input voltage. The usual PNP

Microprocessors

pass transistor has been replaced by a PMOS pass

element. Because the PMOS pass element behaves

as a low-value resistor, the dropout voltage is very

low, typically 105mV at 10mA of load current, and is

directly

proportional

to

the

load

current.

The

quiescent current is ultralow (1.2

μA typically) and is

stable over the entire range of output load current

(0mA to 50mA). When properly configured with a pull-

up resistor, the PG output can be used to implement

a power-on reset or low battery indicator.

1

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.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2012, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.