SMB110 datasheet(2/34 Pages) SUMMIT

2 / 34 page

SMB110

Preliminary Information

Summit Microelectronics, Inc

2099 2.3 5/3/2005

TABLE OF CONTENTS

General Description ........................................................ 3

Typical Application .......................................................... 4

Internal Block Diagram.................................................... 5

Pin Descriptions ...........................................................6-8

Package and Pin Configuration ...................................... 9

Absolute Maximum Ratings .......................................... 10

Recommended Operating Conditions........................... 10

DC Operating Characteristics ..................................10-13

AC Operating Characteristics .................................14-15

2C 2-Wire Serial Interface AC Operating Characteristics-

100khz........................................................................... 16

Timing Diagrams: I

2C.................................................... 16

Efficiency Graphs.......................................................... 17

Transient Response...................................................... 18

Timing Diagrams: Power-On Sequence ....................... 19

Applications Information: Device Operation

Power Supply................................................................ 20

Enable........................................................................... 20

Power-On Sequencing.................................................. 20

Normal Sequencing ...................................................... 20

Sequencing With Enable............................................... 20

Sequencing with channel bypass ................................. 21

Manual Mode ................................................................ 21

Monitoring ..................................................................... 21

Output Voltage .............................................................. 21

LDO Standby Voltage ................................................... 22

Soft Start ....................................................................... 22

Power-On Sequencing FlowChart ................................ 23

Minimum Load .............................................................. 24

Margining ...................................................................... 24

Application Schematic................................................... 25

Bill of materials.........................................................26-27

Programming information

Development Hardware & Software ............................. 28

Serial Interface.............................................................. 29

Write.............................................................................. 29

Read.............................................................................. 29

Configuration Registers ................................................ 29

General Purpose Memory............................................. 29

GUI................................................................................ 30

2C memory read and writes ......................................... 31

Default Configuration Register Setting

.....................32

Part Marking.................................................................. 33

Package ........................................................................ 34

Ordering Information ..................................................... 35

Legal Notice .................................................................. 35

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