ACT8740

Rev PrB, 25-Feb-08

- 2 -

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Copyright © 2008 Active-Semi, Inc.

ActivePMU

I

TABLE OF CONTENTS

GENERAL INFORMATION ...................................................................................... P. 01

Functional Block Diagram ............................................................................................ p. 03

Ordering Information .................................................................................................... p. 04

Pin Configuration.......................................................................................................... p. 04

Pin Descriptions ........................................................................................................... p. 05

Absolute Maximum Ratings ......................................................................................... p. 07

SYSTEM MANAGEMENT ........................................................................................ P. 08

Register Descriptions ................................................................................................... p. 08

Electrical Characteristics.............................................................................................. p. 09

Typical Performance Characteristics............................................................................ p. 11

Functional Description.................................................................................................. p. 12

STEP-DOWN DC/DC CONVERTERS ..................................................................... P. 14

Electrical Characteristics ............................................................................................. p. 14

Register Descriptions ................................................................................................... p. 15

Typical Performance Characteristics ........................................................................... p. 17

Functional Description.................................................................................................. p. 18

WLED BIAS DC/DC CONVERTER ......................................................................... P. 20

Electrical Characteristics ............................................................................................. p. 20

Register Descriptions ................................................................................................... p. 21

Typical Performance Characteristics ........................................................................... p. 23

Functional Description.................................................................................................. p. 24

LOW-NOISE, LOW-DROPOUT, LINEAR REGULATORS....................................... P. 26

Electrical Characteristics ............................................................................................. p. 26

Register Descriptions ................................................................................................... p. 29

Typical Performance Characteristics............................................................................ p. 31

Functional Description.................................................................................................. p. 32

SINGLE-CELL Li+ BATTERY CHARGER (CHGR) ................................................. P. 33

Electrical Characteristics .............................................................................................. p. 33

Register Descriptions ................................................................................................... p. 34

Typical Performance Characteristics............................................................................ p. 36

Functional Description.................................................................................................. p. 37

PACKAGE INFORMATION...................................................................................... P. 40