ACT8600

Rev 3, 15-Nov-12

Copyright © 2012 Active-Semi, Inc.

Innovative Power

TM

ActivePMU

I

- 2 -

www.active-semi.com

TABLE OF CONTENTS

General Information .....................................................................................................................................p. 01

Functional Block Diagram............................................................................................................................p. 04

Ordering Information....................................................................................................................................p. 05

Pin Configuration .........................................................................................................................................p. 05

Pin Descriptions...........................................................................................................................................p. 06

Absolute Maximum Ratings .........................................................................................................................p. 08

Global Register Map ....................................................................................................................................p. 10

Register and Bit Descriptions ......................................................................................................................p. 11

System Control Electrical Characteristics....................................................................................................p. 16

Step-Down DC/DC Electrical Characteristics ..............................................................................................p. 17

Step-Up DC/DC Electrical Characteristics...................................................................................................p. 18

Low-IQ LDO Electrical Characteristics ........................................................................................................p. 20

OTG Subsystem Electrical Characteristics..................................................................................................p. 20

ActivePath

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

System Control Information .........................................................................................................................p. 34

Interfacing with the Ingenic JZ4770 Processor ..............................................................................p. 34

Control Signals ...............................................................................................................................p. 34

Power Control Sequences..............................................................................................................p. 34

Functional Description .................................................................................................................................p. 36

Interrupt Service Routine................................................................................................................p. 36

Housekeeping Functions ................................................................................................................p. 36

Thermal Protection .........................................................................................................................p. 37

Step-Down DC/DC Regulators ....................................................................................................................p. 38

General Description ........................................................................................................................p. 38

Output Current Capability ...............................................................................................................p. 38

100% Duty Cycle Operation ...........................................................................................................p. 38

Operating Mode ..............................................................................................................................p. 38

Synchronous Rectification ..............................................................................................................p. 38

Soft-Start.........................................................................................................................................p. 38

Compensation.................................................................................................................................p. 38

Configuration Options.....................................................................................................................p. 38

Configurable Step-Up DC/DC......................................................................................................................p. 39

General Description ........................................................................................................................p. 39

5V Applications ...............................................................................................................................p. 39

Compensation and Stability............................................................................................................p. 39

Configuration Options.....................................................................................................................p. 39

Low-Dropout Linear Regulators...................................................................................................................p. 40

General Description ........................................................................................................................p. 40

LDO Output Voltage Programming.................................................................................................p. 40

Enabling and Disabling the LDOs...................................................................................................p. 40

Power-OK .......................................................................................................................................p. 40

Interrupts.........................................................................................................................................p. 40

Optional LDO Output Discharge.....................................................................................................p. 40

Output Capacitor Selection.............................................................................................................p. 40

Backup Battery Charger .................................................................................................................p. 40