ADP3182

Rev. 0 | Page 2 of 20

TABLE OF CONTENTS

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

Test Circuits....................................................................................... 5

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Description .............................. 7

Typical Performance Characteristics ............................................. 8

Theory of Operation ........................................................................ 9

Start-Up Sequence........................................................................ 9

Master Clock Frequency.............................................................. 9

Output Voltage Differential Sensing .......................................... 9

Output Current Sensing .............................................................. 9

Current Control Mode and Thermal Balance ........................ 10

Voltage Control Mode................................................................ 10

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

Current Limit, Short-Circuit, and Latch-off Protection ....... 10

Power Good Monitoring ........................................................... 11

Output Crowbar ......................................................................... 11

Output Enable and UVLO ........................................................ 12

Applications..................................................................................... 14

Setting the Clock Frequency..................................................... 14

Soft Start and Current Limit Latch-Off Delay Time ............. 14

Inductor Selection ...................................................................... 14

Output Current Sense................................................................ 15

Output Voltage............................................................................ 16

Power MOSFETs......................................................................... 16

Ramp Resistor Selection............................................................ 17

Current Limit Setpoint .............................................................. 17

Feedback Loop Compensation Design.................................... 17

Input Capacitor Selection and Input Current di/dt ............... 18

Inductor DCR Temperature Correction ................................. 18

Layout and Component Placement ......................................... 19

Outline Dimensions ....................................................................... 20

Ordering Guide .......................................................................... 20

REVISION HISTORY

10/04—Revision 0: Initial Version