TPS70345 datasheet(9/46 Pages) TI

Part #	TPS70345

Description	DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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9 / 46 page

UVLO1

Comp

+

-

+

-

+

-

+

-

Thermal

Shutdown

2.5V

+

-

Current

Sense

Reference

Vref

ENA_1

FB1

ENA_1

120ms

Delay

0.95xVref

FB1

0.95xVref

FB2

RisingEdge

Deglitch

Current

Sense

+

-

ENA_2

Vref

VIN1 (2Pins)

GND

EN

VIN2 (2Pins)

SEQ

(seeNoteB)

PG1

MR2

RESET

VIN1

MR1

VIN1

PG

Comp

RisingEdge

Deglitch

Reset

Comp

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

2.5V

UVLO2

Comp

10kW

VSENSE1

(seeNoteA)

V

(2Pins)

OUT1

VSENSE2

(seeNoteA)

10kW

TPS70345, TPS70348

TPS70351, TPS70358

TPS70302

www.ti.com

SLVS285H – AUGUST 2000 – REVISED APRIL 2010

Fixed 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.

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