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FEATURES

DESCRIPTION

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PWP PACKAGE

(TOP VIEW)

NC

MR1

MR2

EN

SEQ

GND

NC

PG1

RESET

NC

TPS70145, TPS70148

TPS70151, TPS70158

TPS70102

SLVS222D – DECEMBER 1999 – REVISED NOVEMBER 2004

Dual-Output Low-Dropout Voltage Regulators

with Power-Up Sequencing for Split-Voltage DSP Systems

•

Dual Output Voltages for Split-Supply

TPS701xx family devices are designed to provide a

Applications

complete

power

management

solution

for

the

TMS320™ DSP family, processor power, ASIC,

•

Selectable Power-Up Sequencing for DSP

FPGA, and digital applications where dual output

Applications

voltage regulators are required. Easy programmability

•

Output Current Range of 500mA on Regulator

of the sequencing function makes the TPS701xx

1 and 250mA on Regulator 2

family ideal for any TMS320 DSP applications with

•

Fast Transient Response

power sequencing requirements. Differentiated fea-

tures, such as accuracy, fast transient response, SVS

•

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

supervisory circuit, manual reset inputs, and an

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

enable function, provide a complete system solution.

Outputs

The TPS701xx family of voltage regulators offers very

•

Open Drain Power-On Reset with 120ms Delay

low dropout voltage and dual outputs with power-up

•

Open Drain Power Good for Regulator 1

sequence control, which is designed primarily for

•

Ultra Low 190µA (typ) Quiescent Current

DSP applications. These devices have extremely low

noise output performance without using any added

•

1µA Input Current During Standby

filter bypass capacitors and are designed to have a

•

fast transient response and be stable with 10µF low

Capacitor

ESR capacitors.

•

Quick Output Capacitor Discharge Feature

These devices have fixed 3.3V/2.5V, 3.3V/1.8V,

•

Two Manual Reset Inputs

3.3V/1.5V, 3.3V/1.2V, and adjustable/adjustable volt-

•

2% Accuracy Over Load and Temperature

age options. Regulator 1 can support up to 500mA,

and regulator 2 can support up to 250mA. Separate

•

Undervoltage Lockout (UVLO) Feature

voltage inputs allow the designer to configure the

•

20-Pin PowerPAD™ TSSOP Package

source power.

•

Thermal Shutdown Protection

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.

PowerPAD, TMS320 are trademarks of Texas Instruments.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2004, 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.