TPS70745PWPR datasheet(8/40 Pages) TI1

Part #	TPS70745PWPR

Description	Dual-Output, Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems

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Manufacturer	TI1 [Texas Instruments]

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UVLO

Comp

+

-

+

-

+

-

+

-

Thermal

Shutdown

2.5V

+

-

Current

Sense

Reference

Vref

ENA_1

FallingEdge

Delay

0.95xVref

FB1

0.95xVref

FB2

RisingEdge

Deglitch

Current

Sense

+

-

ENA_2

Vref

VIN1 (2Pins)

GND

EN

VIN2 (2Pins)

SEQ

(seeNoteB)

FB1

(seeNoteA)

PG1

MR2

RESET

FB2

(seeNoteA)

VIN1

MR1

VIN1

PG

Comp

RisingEdge

Deglitch

Reset

Comp

VOUT1 (2Pins)

VOUT2 (2Pins)

+

-

FallingEdge

Deglitch

0.83 x Vref

FB2

V

UVComp

OUT2

FallingEdge

Deglitch

0.83 x Vref

FB1

V

UVComp

OUT1

Power

Sequence

Logic

ENA_1

ENA_2

VIN1

TPS70745, TPS70748

TPS70751, TPS70758

TPS70702

SLVS291D – MAY 2000 – REVISED DECEMBER 2007

Adjustable Voltage Version

A.

For most applications, FB1 and FB2 should be externally connected to resistor dividers as close as possible to the

device. For other implementations, refer to FB terminals connection discussion in the Application Information

section.

B.

If the SEQ terminal is floating at the input, VOUT2 powers up first

8

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