ADP1612/ADP1613

Rev. A | Page 2 of 28

TABLE OF CONTENTS

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

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

Typical Application Circuit ............................................................. 1

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

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

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

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

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

Boundary Condition.................................................................... 4

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

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

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

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

Current-Mode PWM Operation .............................................. 11

Frequency Selection ................................................................... 11

Soft Start ...................................................................................... 11

Thermal Shutdown (TSD)......................................................... 12

UnderVoltage Lockout (UVLO)............................................... 12

Enable/Shutdown Control ........................................................ 12

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

Setting the Output Voltage........................................................ 13

Inductor Selection ...................................................................... 13

Choosing the Input and Output Capacitors ........................... 13

Diode Selection........................................................................... 14

Loop Compensation .................................................................. 14

Soft Start Capacitor .................................................................... 15

Typical Application Circuits ......................................................... 16

Step-Up Regulator...................................................................... 16

Step-Up Regulator Circuit Examples....................................... 16

SEPIC Converter ........................................................................ 22

TFT LCD Bias Supply ................................................................ 22

PCB Layout Guidelines.................................................................. 24

Outline Dimensions ....................................................................... 25

Ordering Guide .......................................................................... 25

REVISION HISTORY

9/09—Rev. 0 to Rev. A

Changes to Figure 45...................................................................... 17

Changes to Figure 48 and Figure 51............................................. 18

Changes to Figure 54 and Figure 57............................................. 19

Changes to Figure 60 and Figure 63............................................. 20

Changes to Figure 66 and Figure 69............................................. 21

Changes to Figure 72...................................................................... 22

Changes to Ordering Guide .......................................................... 25

4/09—Revision 0: Initial Version