LM2676 - High Efficiency 3A Step-Down Voltage Regulator

Datasheet Summary

Description

The LM2676 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 3A loads with excellent line and load regulation characteristics.

Features

Efficiency up to 94%.
Simple and easy to design with (using off-the-shelf external components).
150 mΩ DMOS output switch.
3.3V, 5V and 12V fixed output and adjustable (1.2V to 37V ) versions.
50μA standby current when switched OFF.
±2%maximum output tolerance over full line and load conditions.
Wide input voltage range: 8V to 40V.
260 KHz fixed frequency internal oscillator.
40 to +125°C operating junction temperature range.

National Semiconductor

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Datasheet Details

Part number	LM2676
Manufacturer	National Semiconductor
File Size	373.36 KB
Description	High Efficiency 3A Step-Down Voltage Regulator
Datasheet	LM2676 Datasheet
Additional preview pages of the LM2676 datasheet.

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LM2676 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator February 29, 2008 LM2676 SIMPLE SWITCHER® High Efficiency 3A Step-Down Voltage Regulator General Description The LM2676 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 3A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance DMOS power switch. The series consists of fixed output voltages of 3.3V, 5V and 12V and an adjustable output version. The SIMPLE SWITCHER concept provides for a complete design using a minimum number of external components.

Published: Feb 20, 2020 |