ACT8892
Rev 2, 01-Jul-15
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
I2C Interface Electrical Characteristics ........................................................................................................p. 08
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
I2C Interface .....................................................................................................................................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
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