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PWP PACKAGE

(TOP VIEW)

NC

MR1

MR2

EN

SEQ

GND

NC

PG1

RESET

NC

TPS70145, TPS70148

TPS70151, TPS70158

TPS70102

www.ti.com

SLVS222I – DECEMBER 1999 – REVISED AUGUST 2010

Dual-Output Low Dropout Voltage Regulators

with Power-Up Sequencing for Split-Voltage DSP Systems

Check for Samples: TPS70145, TPS70148, TPS70151, TPS70158, TPS70102

1

FEATURES

DESCRIPTION

23

•

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

features, such as accuracy, fast transient response,

•

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

SVS 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 offer 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 190mA (typ) Quiescent Current

DSP applications. These devices have extremely low

noise output performance without using any added

•

1mA Input Current During Standby

filter bypass capacitors and are designed to have a

•

fast transient response and be stable with 10mF low

•

Quick Output Capacitor Discharge Feature

ESR capacitors.

•

Two Manual Reset Inputs

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

•

2% Accuracy Over Load and Temperature

3.3V/1.5V,

3.3V/1.2V,

and

adjustable/adjustable

voltage options. Regulator 1 can support up to

•

Undervoltage Lockout (UVLO) Feature

500mA, and regulator 2 can support up to 250mA.

•

20-Pin PowerPAD™ TSSOP Package

Separate

voltage

inputs

allow

the

designer

to

•

Thermal Shutdown Protection

configure the source power.

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, TMS320 are trademarks of Texas Instruments.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2010, 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.