LM2630 Datasheet Synchronous Step-down Power Supply Controller

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM2630 Synchronous Step-Down Power Supply Controller February 1999 LM2630 Synchronous Step-Down Power Supply.

Datasheet Details

Part number	LM2630
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	265.95 KB
Description	Synchronous Step-Down Power Supply Controller
Datasheet	LM2630_NationalSemiconductor.pdf

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.

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.

Part Number	Description
LM2631	Synchronous Step-Down Power Supply Controller
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