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

Product Overview

National Semiconductor

Datasheet Details

Part number	LM2648
Manufacturer	National Semiconductor
File Size	0.99 MB
Description	Synchronous Step-Down 3-Channel Switching Regulator Controller
Datasheet	LM2648 Datasheet
Additional preview pages of the LM2648 datasheet.

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 |