ADP2108(RevA) 데이터 시트보기 (PDF) - Analog Devices

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ADP2108
(Rev.:RevA)

Compact, 600 mA, 3 MHz, Step-Down DC-to-DC Converter

Analog Devices 

ADP2108

TABLE OF CONTENTS

Features .............................................................................................. 1

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

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

Typical Applications Circuit............................................................ 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

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

Thermal Resistance ...................................................................... 4

ESD Caution.................................................................................. 4

Pin Configuration and Function Descriptions............................. 5

Typical Performance Characteristics ............................................. 6

Theory of Operation ...................................................................... 11

Control Scheme .......................................................................... 11

PWM Mode................................................................................. 11

Power Save Mode........................................................................ 11

REVISION HISTORY

12/08—Rev. 0 to Rev. A

Changes to Figure 4 .......................................................................... 6

Updated Outline Dimensions ....................................................... 16

9/08—Revision 0: Initial Version

Enable/Shutdown ....................................................................... 11

Short-Circuit Protection............................................................ 12

Undervoltage Lockout ............................................................... 12

Thermal Protection.................................................................... 12

Soft Start ...................................................................................... 12

Current Limit .............................................................................. 12

100% Duty Operation................................................................ 12

Applications Information .............................................................. 13

External Component Selection ................................................ 13

Thermal Considerations............................................................ 14

PCB Layout Guidelines.............................................................. 14

Evaluation Board ............................................................................ 15

Outline Dimensions ....................................................................... 16

Ordering Guide .......................................................................... 16

Rev. A | Page 2 of 16

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