LM2630 - Synchronous Step-Down Power Supply Controller

Product Overview

National Semiconductor

Part number	LM2630
Manufacturer	National Semiconductor
File Size	265.95 KB
Description	Synchronous Step-Down Power Supply Controller
Datasheet	LM2630 Datasheet
Additional preview pages of the LM2630 datasheet.

The LM2630 controller provides all the active functions for step-down (buck) switching converters.

include the external synchronization pin, and the PGOOD pin to indicate the state of the output voltage. Protection circuitry includes thermal shutdown, undervoltage shut down, soft-start capability, and two levels of current limits: The first level simply limits the load current directly; at the second level, if the load pulls the output voltage down below 80% of the regulated value, the chip willshut down. This latched operation is disabled during startup, but an internal timer will enable it.

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Published: Mar 22, 2005 |