TPS74301RGWT datasheet(4/27 Pages) TI

Part #	TPS74301RGWT

Description	1.5A Ultra-LDO with Programmable Sequencing

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Manufacturer	TI [Texas Instruments]

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BLOCK DIAGRAM

Thermal

Limit

FB

PG

IN

BIAS

TRACK

EN

Hysteresis

andDe-Glitch

Current

Limit

UVLO

0.8V

Reference

0.9

V

´

REF

GND

V

<V

=1,V

>V

=0

TRACK

REF

TRACK

REF

V

OUT

R

1

R

2

V

=0.8x(

)

OUT

1+

R

1

R

2

1

0

TPS74301

SBVS065E – DECEMBER 2005 – REVISED MAY 2007

Table 1. Standard 1% Resistor Values for Programming the Output Voltage(1)

R1 (kΩ)

R2 (kΩ)

VOUT (V)

Short

Open

0.8

0.619

4.99

0.9

1.13

4.53

1.0

1.37

4.42

1.05

1.87

4.99

1.1

2.49

4.99

1.2

4.12

4.75

1.5

3.57

2.87

1.8

3.57

1.69

2.5

3.57

1.15

3.3

(1)

VOUT = 0.8 × (1 + R1/R2)

4

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