LTC2978



2978fa

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

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

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

Description..........................................................................................................................1

Absolute Maximum Ratings......................................................................................................3

Order Information..................................................................................................................3

Pin Configuration ..................................................................................................................3

Electrical Characteristics.........................................................................................................4

Timing Diagram....................................................................................................................8

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

Pin Functions ..................................................................................................................... 12

Block Diagram.................................................................................................................... 14

Operation.......................................................................................................................... 15

Operation Overview ...............................................................................................................................................15

PMBus Serial Digital Interface ...............................................................................................................................16

Register Command Set..........................................................................................................................................18

Detailed PMBus Command Register Descriptions .................................................................................................22

Manufacturer Specific Commands.........................................................................................................................35

Watchdog ..............................................................................................................................................................49

Reset .....................................................................................................................................................................49

Write-Protect Pin ...................................................................................................................................................49

Other Operations....................................................................................................................................................49

Applications Information ....................................................................................................... 50

PCB Assembly and Layout Suggestions ................................................................................................................61

Typical Application .............................................................................................................. 62

Package Description ............................................................................................................ 63

Typical Application .............................................................................................................. 64

Related Parts ..................................................................................................................... 64

Table oF conTenTs