LM2648 - Synchronous Step-Down 3-Channel Switching Regulator Controller

National Semiconductor

LM2648 Datasheet Preview — Preview of LM2648 PDF

Datasheet Details

Part number	LM2648
Manufacturer	National Semiconductor
File Size	0.99 MB
Description	Synchronous Step-Down 3-Channel Switching Regulator Controller
Datasheet	LM2648_NationalSemiconductor.pdf

LM2648 Product details

Description

The LM2648 consists of two current mode and two voltage mode synchronous buck regulator controllers providing 3 outputs at a switching frequency of 300kHz.

Features

analog soft-start circuitry that is independent of the output load and output capacitance. This makes the soft-start behavior more predictable than traditional soft-start circuits. Sequential startup is built in and requires a single capacitor to set the timing. The LM2648 has over-voltage protection and under-voltage protection for all outputs. Two additional comparator inputs (analog and logic level) are provided to shut down the IC for any user defined protection. The FAULT_DELAY pin allows d.

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Published: Jun 1, 2007 |