ACT8892

Rev 2, 01-Jul-15

- 2 -

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Copyright © 2015-2017 Active-Semi, Inc.

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. 14

Step-Down DC/DC Electrical Characteristics ..............................................................................................p. 15

Low-Noise LDO Electrical Characteristics...................................................................................................p. 16

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

System control information ..........................................................................................................................p. 22

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

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

Control Sequences...........................................................................................................................p. 24

Functional Description .................................................................................................................................p. 27

Voltage Monitor and Interrupt...........................................................................................................p. 27

Thermal Shutdown ...........................................................................................................................p. 27

Step-Down DC/DC Regulators ....................................................................................................................p. 28

General Description .........................................................................................................................p. 28

100% Duty Cycle Operation.............................................................................................................p. 28

Synchronous Rectification................................................................................................................p. 28

Soft-Start ..........................................................................................................................................p. 28

Compensation ..................................................................................................................................p. 28

Configuration Options ......................................................................................................................p. 28

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

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

Low-Noise, Low-Dropout Linear Regulators................................................................................................p. 30

General Description .........................................................................................................................p. 30

Output Current Limit .........................................................................................................................p. 30

Compensation ..................................................................................................................................p. 30

Configuration Options ......................................................................................................................p. 30

OK[ ] and Output Fault Interrupt.......................................................................................................p. 30

PCB Layout Considerations .............................................................................................................p. 31

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