ADPL12005/ADPL12006

20V, 5A/6A Fully Integrated Synchronous Buck

Converters

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TABLE OF CONTENTS

General Description ............................................................................................................................................................1

Applications.........................................................................................................................................................................1

Benefits and Features.........................................................................................................................................................1

Simplified Block Diagram ....................................................................................................................................................2

Absolute Maximum Ratings ...............................................................................................................................................4

Package Information ...........................................................................................................................................................4

Electrical Characteristics.....................................................................................................................................................5

Typical Operating Characteristics .......................................................................................................................................7

Pin Configurations...............................................................................................................................................................9

Pin Descriptions ..................................................................................................................................................................9

Detailed Description..........................................................................................................................................................10

Linear Regulator Output (BIAS) ....................................................................................................................................10

System Enable (EN)......................................................................................................................................................10

Synchronization Input (SYNC) ......................................................................................................................................10

Soft-Start .......................................................................................................................................................................10

Short-Circuit Protection .................................................................................................................................................10

Thermal Shutdown ........................................................................................................................................................11

Multiphase Operation ....................................................................................................................................................11

Applications Information....................................................................................................................................................12

Setting the Output Voltage ............................................................................................................................................12

Inductor Selection..........................................................................................................................................................12

Input Capacitor ..............................................................................................................................................................13

Output Capacitor ...........................................................................................................................................................14

Dual-Phase Operation...................................................................................................................................................14

Low-IQ Operation in Dual Phase ...............................................................................................................................14

Setting Output Voltage...............................................................................................................................................15

PCB Layout Guidelines .................................................................................................................................................15

Typical Application Circuits ...............................................................................................................................................17

Ordering Information .........................................................................................................................................................18