TPS70345, TPS70348, TPS70351, TPS70358, TPS70302

DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS

WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS

SLVS285A – AUGUST 2000 – REVISED OCTOBER 2002

1

POST OFFICE BOX 655303

Applications

Applications (See TPS704xx for

Independent Enabling of Each Output)

Regulator 1 and 2 A on Regulator 2

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

Outputs

Delay

Capacitor

description

TPS703xx family of devices are designed to

provide a complete power management solution

for TI DSP, processor power, ASIC, FPGA, and

digital applications where dual output voltage

regulators are required. Easy programmability of

the sequencing function makes this family ideal

for

any

TI

DSP

applications

with

power

sequencing requirement. Differentiated features,

such as accuracy, fast transient response, SVS

supervisory circuit (power on reset), manual reset

inputs, and enable function, provide a complete

system solution.

1.8 V

VIN1

VIN2

EN

SEQ

VOUT1

VSENSE1

PG1

MR2

RESET

MR1

VSENSE2

TPS70351 PWP

5 V

3.3 V

I/O

MR1

Core

0.22

µF

RESET

22

µF

47

µF

0.22

µF

DSP

MR2

PG1

EN

250 k

Ω

>2 V

<0.7 V

250 k

Ω

>2 V

<0.7 V

>2 V

<0.7 V

VOUT2

Copyright

 2002, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

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 is a trademark of Texas Instruments.

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

GND/HEATSINK

NC

MR2

MR1

EN

SEQ

GND

GND/HEATSINK

GND/HEATSINK

NC

PG1

RESET

NC

GND/HEATSINK

PWP PACKAGE

(TOP VIEW)

NC – No internal connection