LM2678, LM2 - SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator

National Semiconductor

The LM2678 by National Semiconductor is a SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator. Below is the official datasheet preview.

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LM2678 SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator by National Semiconductor - Datasheet Preview — Official preview page of the **LM2678** SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator datasheet (National Semiconductor).

Datasheet Details

Part number	LM2678, LM2
Manufacturer	National Semiconductor
File Size	800.32 KB
Description	SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator
Datasheet	LM2-678.pdf
Note	This datasheet PDF includes multiple part numbers: LM2678, LM2. Please refer to the document for exact specifications by model.
Additional preview pages of the LM2678 datasheet.

LM2678 Product details

Description

The LM2678 series of regulators are monolithic integrated circuits which provide all of the active functions for a stepdown (buck) switching regulator capable of driving up to 5A loads with excellent line and load regulation characteristics.

Features

n Efficiency up to 92% n Simple and easy to design with (using off-the-shelf external components) n 120 mΩ DMOS output switch n 3.3V, 5V and 12V fixed output and adjustable (1.2V to 37V ) versions n 50µA standby current when switched OFF n ±2%maximum output tolerance over full line and load conditions n Wide input voltage range: 8V to 40V n 260 KHz fixed frequency internal oscillator n.
40 to +125˚C operating junction temperature range.

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Published: Mar 22, 2005 |