TPS70451PWP datasheet(4/40 Pages) TI

Part #	TPS70451PWP

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

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Manufacturer	TI [Texas Instruments]

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TPS70445, TPS70448

TPS70451, TPS70458

TPS70402

SLVS307F – SEPTEMBER 2000 – REVISED APRIL 2010

www.ti.com

DISSIPATION RATINGS

DERATING

PACKAGE

AIR FLOW (CFM)

TA ≤ +25°C

TA = +70°C

TA = +85°C

FACTOR

0

3.067W

30.67mW/°C

1.687W

1.227W

PWP(1)

250

4.115W

41.15mW/°C

2.265W

1.646W

(1)

This parameter is measured with the recommended copper heat sink pattern on a 4-layer PCB, 1 oz. copper on a 4-in by 4-in ground

layer. For more information, refer to TI technical brief SLMA002.

RECOMMENDED OPERATING CONDITIONS

Over operating temperature range (unless otherwise noted).

MIN

MAX

UNIT

Input voltage, VI

(1) (regulator 1 and 2)

2.7

6

V

Output current, IO (regulator 1)

0

1

A

Output current, IO (regulator 2)

0

2

A

Output voltage range (for adjustable option)

1.22

5.5

V

Operating virtual junction temperature, TJ

–40

+125

°C

(1)

To calculate the minimum input voltage for maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load).

4

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