ADP2108ACBZ-1.8-R7 Просмотр технического описания (PDF) - Analog Devices

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ADP2108ACBZ-1.8-R7

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

6/14—Rev. G to Rev. H

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

6/12—Rev. F to Rev. G

Change to Features Section ............................................................. 1

Added ADIsimPower Design Tool Section................................. 13

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

1/12—Rev. E to Rev. F

Change to Table 3................................................................................... 4

Changes to Output Capacitor Section ......................................... 13

10/10—Rev. D to Rev. E

Changed −40°C to +85°C to −40°C to +125°C Throughout ......... 3

Changes to Ordering Guide .......................................................... 17

1/10—Rev. C to Rev. D

Changes to Ordering Guide .......................................................... 17

Data Sheet

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

ADIsimPower Design Tool ....................................................... 13

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

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

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

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

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

Ordering Guide .......................................................................... 17

4/09—Rev. B to Rev. C

Changes to General Description Section .......................................1

2/09—Rev. A to Rev. B

Added 5-Lead TSOT Package...........................................Universal

Changes to Absolute Maximum Ratings Section..........................4

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

Changes to Ordering Guide .......................................................... 17

11/08—Rev. 0 to Rev. A

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

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

9/08—Revision 0: Initial Version

Rev. H | Page 2 of 20

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