ACT8897

Rev 2, 05-Sep-13

- 2 -

www.active-semi.com

ActivePMU

Copyright © 2013 Active-Semi, Inc.

Active-Semi Proprietary―For Authorized Recipients and Customers

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

Global Register Map ....................................................................................................................................p. 09

Register and Bit Descriptions ......................................................................................................................p. 10

System Control Electrical Characteristics....................................................................................................p. 13

Step-Down DC/DC Electrical Characteristics ..............................................................................................p. 14

Low-Noise LDO Electrical Characteristics...................................................................................................p. 15

Typical Performance Characteristics...........................................................................................................p. 16

System control information ..........................................................................................................................p. 21

Interfacing with the Samsung S5PV210 ..........................................................................................p. 21

Control Signals.................................................................................................................................p. 22

Push-Button Control.........................................................................................................................p. 23

Control Sequences...........................................................................................................................p. 23

Functional Description .................................................................................................................................p. 26

Voltage Monitor and Interrupt...........................................................................................................p. 26

Thermal Shutdown ...........................................................................................................................p. 26

Step-Down DC/DC Regulators ....................................................................................................................p. 27

General Description..........................................................................................................................p. 27

100% Duty Cycle Operation.............................................................................................................p. 27

Synchronous Rectification................................................................................................................p. 27

Soft-Start ..........................................................................................................................................p. 27

Compensation ..................................................................................................................................p. 27

Configuration Options.......................................................................................................................p. 27

OK[ ] and Output Fault Interrupt.......................................................................................................p. 28

PCB Layout Considerations .............................................................................................................p. 28

Low-Noise, Low-Dropout Linear Regulators................................................................................................p. 29

General Description..........................................................................................................................p. 29

Output Current Limit .........................................................................................................................p. 29

Compensation ..................................................................................................................................p. 29

Configuration Options.......................................................................................................................p. 29

OK[ ] and Output Fault Interrupt.......................................................................................................p. 29

PCB Layout Considerations .............................................................................................................p. 29

TQFN44-32 Package Outline and Dimensions ...........................................................................................p. 31