1

FEATURES

APPLICATIONS

DESCRIPTION

TPS781DDC

TSOT23-5

(TOPVIEW)

OUT

V

/FB

SET

IN

GND

EN

1

2

3

5

4

TPS781DRV

2mmx2mmSON-6

(TOPVIEW)

IN

GND

EN

6

5

4

OUT

N/C

V

FB

/

SET

1

2

3

Thermal

Pad

TPS781 Series

with Pin-Selectable, Dual-Level Output Voltage

two

voltage

levels

on-the-fly

through

a

2

• Low I

microprocessor-compatible

input.

This

LDO

is

• 150mA, Low-Dropout Regulator with

designed specifically for battery-powered applications

Pin-Selectable Dual Voltage Level Output

where dual-level voltages are needed. With ultralow

• Low Dropout: 200mV at 150mA

detectors are ideal applications for this device.

• 3% Accuracy Over Load/Line/Temperature

The ultralow-power and selectable dual-level output

• Available in Dual-Level, Fixed Output Voltages

voltages

allow

designers

to

customize

power

from 1.5V to 4.2V Using Innovative Factory

consumption for specific applications. Designers can

EPROM Programming

now shift to a lower voltage level in a battery-powered

• Available in an Adjustable Version from 1.22V

design when the microprocessor is in sleep mode,

to 5.25V or a Dual-Level Output Version

further reducing overall system power consumption.

The two voltage levels are preset at the factory

• V

through a unique architecture using an EPROM. The

Factory-Programmed Voltage Levels

EPROM

technique

allows

for

numerous

output

• Stable with a 1.0µF Ceramic Capacitor

• Thermal Shutdown and Overcurrent Protection

only. Consult with your local factory representative for

• CMOS Logic Level-Compatible Enable Pin

exact voltage options and ordering information;

• Available in DDC (TSOT23-5) or DRV (2mm ×

minimum order quantities may apply.

2mm SON-6) Package Options

The TPS781 series are designed to be compatible

with the TI MSP430 and other similar products. The

enable pin is compatible with standard CMOS logic.

• TI MSP430 Attach Applications

This LDO is stable with any output capacitor greater

• Power Rails with Programming Mode

than 1.0

µF. Therefore, implementations of this device

• Dual Voltage Levels for Power-Saving Mode

require minimal board space because of miniaturized

• Wireless Handsets, Smartphones, PDAs, MP3

packaging and a potentially small output capacitor.

Players, and Other Battery-Operated Handheld

Products

shutdown and current limit to protect the device

during

fault

conditions.

All

packages

have

an

+125

°C. For high-performance applications requiring

The TPS781 family of low-dropout (LDO) regulators

a dual-level voltage option, consider the TPS780

miniaturized packaging (2

×2 SON-6), and selectable

scaling.

dual-level output voltage levels. An adjustable version

is also available, but does not have the capability to

shift voltage levels.

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 © 2008, 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.