Part Number
|
LM2630 |
Manufacturer
|
National Semiconductor |
Description
|
Synchronous Step-Down Power Supply Controller |
Published
|
Mar 22, 2005 |
Detailed Description
|
LM2630 Synchronous Step-Down Power Supply Controller
February 1999
LM2630 Synchronous Step-Down Power Supply Controlle...
|
Datasheet
|
LM2630
|
Overview
LM2630 Synchronous Step-Down Power Supply Controller
February 1999
LM2630 Synchronous Step-Down Power Supply Controller
General Description
The LM2630 controller provides all the active functions for step-down (buck) switching converters.
These dc-to-dc converters provide core CPU power in battery-operated systems.
High efficiency is achieved by using synchronous rectification and pulse-skipping mode operation at light load.
Inexpensive N-channel MOSFETs are used to reduce system cost.
Bootstrap circuit is used to drive the high-side N-channel MOSFET.
Current mode control scheme is used to improve line regulation and transient response, also provides cycle-by-cycle current limiting.
The op...
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