Feature Integration Technology Inc.
Fintek
F72830
Table of Contents
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GENERAL DESCRIPTION ........................................................................................................................................................ 3
FEATURE ..................................................................................................................................................................................... 3
PIN CONFIGURATION.............................................................................................................................................................. 4
PIN DESCRIPTION..................................................................................................................................................................... 4
ELECTRICAL CHARACTERISTIC......................................................................................................................................... 6
5.1 ABSOLUTE MAXIMUM RATINGS ............................................................................................................................................... 6
5.2 DC AND AC ELECTRICAL CHARACTERISTICS (VDDA = 5V, TA = 25℃)................................................................................... 7
5.3 SPECIFICATION OF RELIABILITY................................................................................................................................................ 8
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BLOCK DIAGRAM..................................................................................................................................................................... 9
SIMPLIFIED EXTERNALAPPLICATION DIAGRAM....................................................................................................... 10
FUNCTIONAL DESCRIPTION............................................................................................................................................... 10
8.1 LINEAR CONTROLLER DESCRIPTION....................................................................................................................................... 10
8.2 SOFT-START ............................................................................................................................................................................ 11
8.3 UNDER VOLTAGE PROTECTION................................................................................................................................................ 13
8.4 ACCESS INTERFACE ................................................................................................................................................................ 13
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 ⎯ INDEX 5AH............................................................................................................................................................ 18
9.6 CHIP ID 2 ⎯ Index 5Bh............................................................................................................................................................ 18
10 ORDERING INFORMATION .................................................................................................................................................. 19
11 PACKAGE DIMENSIONS (16-SOP) ....................................................................................................................................... 20
12 APPLICATION CIRCUIT ........................................................................................................................................................ 21
2007 V0.14P
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FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
