1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

PWPPACKAGE

(TOPVIEW)

NC

MR

EN1

EN2

RESET

GND

NC

PG1

PG2

NC

NC=Nointernalconnection

1.8 V

VIN1

VIN2

EN1

EN2

VOUT1

VSENSE1

PG1

MR

RESET

PG2

VSENSE2

VOUT2

TPS70251PWP

5V

3.3V

I/O

PG2

Core

0.1 mF

RESET

10 mF

10 mF

0.1 mF

MR

PG1

EN1

250kW

>2V

<0.7V

250kW

>2V

<0.7V

>2V

<0.7V

EN2

250kW

TPS70245, TPS70248

TPS70251, TPS70258

TPS70202

www.ti.com

SLVS286E – JUNE 2000 – REVISED DECEMBER 2009

DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS

WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS

1

FEATURES

DESCRIPTION

23

•

Dual Output Voltages for Split-Supply

The TPS702xx is a low dropout voltage regulator with

Applications

integrated SVS (RESET, POR, or power on reset)

and power good (PG) functions. These devices are

•

Independent Enable Functions (See Part

capable of supplying 500mA and 250mA by regulator

Number TPS701xx for Sequenced Outputs)

1 and regulator 2 respectively. Quiescent current is

•

Output Current Range of 500mA on Regulator

typically 190

μA at full load. Differentiated features,

1 and 250mA on Regulator 2

such as accuracy, fast transient response, SVS

•

Fast Transient Response

supervisory circuit (power on reset), manual reset

input, and independent enable functions provide a

•

Voltage Options: 3.3V/2.5V, 3.3V/1.8V,

complete system solution.

3.3V/1.5V, 3.3V/1.2V, and Dual Adjustable

Outputs

•

Open Drain Power-On Reset with 120ms Delay

•

Open Drain Power Good for Regulator 1 and

Regulator 2

•

Ultralow 190

μA (typ) Quiescent Current

•

1

μA Input Current During Standby

•

Low Noise: 65

•

Quick Output Capacitor Discharge Feature

•

One Manual Reset Input

•

2% Accuracy Over Load and Temperature

•

Undervoltage Lockout (UVLO) Feature

•

20-Pin PowerPAD™ TSSOP Package

•

Thermal Shutdown Protection

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

PowerPAD is a trademark of Texas Instruments.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2000–2009, 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.