ADP1864

Rev. 0 | Page 2 of 16

TABLE OF CONTENTS

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

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

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

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

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

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

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

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

Theory of Operation ........................................................................ 8

Loop Start-Up ............................................................................... 8

Short-Circuit Protection.............................................................. 9

Undervoltage Lockout (UVLO) ................................................. 9

Overvoltage Lockout Protection (OVP).................................... 9

Soft Start ........................................................................................ 9

Application Information................................................................ 10

Duty Cycle ................................................................................... 10

Ripple Current ............................................................................ 10

Sense Resistor.............................................................................. 10

Inductor Value ............................................................................ 10

MOSFET...................................................................................... 11

Diode............................................................................................ 11

Input Capacitor........................................................................... 11

Output Capacitor........................................................................ 11

Feedback Resistors ..................................................................... 12

Layout Considerations................................................................... 13

Example Applications Circuits ..................................................... 14

Outline Dimensions ....................................................................... 15

Ordering Guide .......................................................................... 15

REVISION HISTORY

10/05—Revision 0: Initial Version