SPX1583T5-1-8 datasheet(4/5 Pages) EXAR

Part #	SPX1583T5-1-8

Description	1.5A Ultra Low Dropout Voltage Regulator

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Manufacturer	EXAR [Exar Corporation]

Direct Link	http://www.exar.com

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4 / 5 page

D

ate: Jun 24-04

SPX1583

TYPICAL APPLICATION

SPX1583

SENSE

ADJ

V

IN

V

CTRL

R1

124

C4

2 X 330uF

C2

10uF

C1

330uF

5V

V

CTRL

3.3V

V

IN

C3

.033uF

(1) V

CTRL needed when VIN < 5V.

(2) V

OUT = VREF (1 + R2/ R1) + I ADJ R2.

(3) V

REF is measured across adjust to sense.

2.5V

V

OUT

Ω

R2

124 Ω

V

OUT

Fig. 1 Adjustable Regulator

SPX1583

SENSE

GND

V

IN

V

CTRL

C4

2 X 330uF

C2

10uF

C1

330uF

5V

V

CTRL

3.3V

V

IN

(1) VCTRL is needed when VIN <5V.

Fig.2 Typical Fixed Regulator

2.5V

V

OUT

V

OUT

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SPX1583T5-1-8 Datasheet(PDF) 4 Page - Exar Corporation

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