A8188 Просмотр технического описания (PDF) - Allegro MicroSystems

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A8188

LOW-DROPOUT REGULATORS — HIGH EFFICIENCY

Allegro MicroSystems 

8188

LOW-DROPOUT

REGULATORS

IN 8

FUNCTIONAL BLOCK DIAGRAM

(1/2 of A8188SL-xx shown)

1 OUT

ENABLE 7

BIAS

DRIVE

ERROR

AMP

BANDGAP

REF.

2 GND

Dwg. FS-012-8

Always order by complete part number:

Part Number Package

A8188SL-xx 8-Lead SOIC

A8188SLT-xx 3-Lead SOT-89/TO-243AA

RθJA

108°C/W

258°C/W

where “-xx” is the required output voltage (VO(nom)) in tenths

(25 through 33), e.g., -30 = 3.0 volts.

OUT1 1

GND1 2

OUT2 3

GND2 4

A8188SL-xx

8 IN1

VR

7 ENABLE1

6 IN2

VR

5 ENABLE2

Dwg. PS-023

NOTE — There is an indeterminate resistance between terminals

2 and 4. For proper operation, terminals 2 and 4 must be

externally connected together.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

Copyright © 1999, 2000 Allegro MicroSystems, Inc.

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