ISL8036 Просмотр технического описания (PDF) - Intersil

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производитель

ISL8036

Dual 3A 1MHz/2.5MHz High Efficiency Synchronous Buck Regulator

Intersil 

ISL8036, ISL8036A

Table of Contents

Absolute Maximum Ratings ................................................................................................................ 8

Thermal Information .......................................................................................................................... 8

Recommended Operating Conditions .................................................................................................. 8

Electrical Specifications. ......................................................................................................................... 8

ISL8036 Typical Operating Performance for Dual PWM Operation ..................................................... 10

ISL8036A Typical Operating Performance for Dual PWM Operation................................................... 15

ISL8036 Typical Operating Performance for Current Sharing PWM Operation. .................................. 17

ISL8036A Typical Operating Performance for Current Sharing PWM Operation. ................................ 21

Theory of Operation........................................................................................................................... 22

PWM Control Scheme....................................................................................................................... 22

Synchronization Control ................................................................................................................... 22

Output Current Sharing.................................................................................................................... 22

Overcurrent Protection..................................................................................................................... 22

PG ................................................................................................................................................ 23

UVLO............................................................................................................................................. 23

Enable ........................................................................................................................................... 23

Soft-start-up .................................................................................................................................. 23

Discharge Mode (Soft-Stop).............................................................................................................. 23

Power MOSFETs .............................................................................................................................. 23

100% Duty Cycle ............................................................................................................................ 23

Thermal Shutdown .......................................................................................................................... 23

Applications Information ................................................................................................................... 23

Output Inductor and Capacitor Selection ............................................................................................ 23

Output Voltage Selection.................................................................................................................. 23

Input Capacitor Selection ................................................................................................................. 24

PCB Layout Recommendation ........................................................................................................... 24

Revision History ................................................................................................................................ 24

Products ............................................................................................................................................ 24

Package Outline Drawing ................................................................................................................. 25

7

FN6853.1

October 18, 2010

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