Fintek

Feature Integration Technology Inc.

2007 V0.14P

2

F72830

Table of Contents

1

GENERAL DESCRIPTION ........................................................................................................................................................ 3

2

FEATURE ..................................................................................................................................................................................... 3

3

PIN CONFIGURATION .............................................................................................................................................................. 4

4

PIN DESCRIPTION..................................................................................................................................................................... 4

5

ELECTRICAL CHARACTERISTIC......................................................................................................................................... 6

5.1

5.2

5.3

6

BLOCK DIAGRAM ..................................................................................................................................................................... 9

7

SIMPLIFIED EXTERNAL APPLICATION DIAGRAM....................................................................................................... 10

8

FUNCTIONAL DESCRIPTION ............................................................................................................................................... 10

8.1

8.2

8.3

8.4

9

REGISTER DESCRIPTION ..................................................................................................................................................... 15

9.1 LR_1, LR_2 Fine Tune Voltage Register

⎯ Index 1.................................................................................................................. 15

9.2 LR_3, LR_4 Fine Tune Voltage Register

⎯ Index 2.................................................................................................................. 16

9.3 Under Voltage, Over Current Enable Protection Register

⎯ Index 03h .................................................................................... 17

9.4 Reserved Function, Read back SSOK Status, If LR finished Soft Start, it Will Read back 1 Register

⎯ Index 04h ................ 17

9.5 CHIP ID 1

9.6 CHIP ID 2

⎯ Index 5Bh ............................................................................................................................................................ 18

10 ORDERING INFORMATION .................................................................................................................................................. 19

11 PACKAGE DIMENSIONS (16-SOP) ....................................................................................................................................... 20

12 APPLICATION CIRCUIT ........................................................................................................................................................ 21