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LM2670 Datasheet SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

Manufacturer: National Semiconductor (now Texas Instruments)

Download the LM2670 datasheet PDF. This datasheet also includes the LM2 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (LM2-670.pdf) that lists specifications for multiple related part numbers.

General Description

The LM2670 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (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.

Overview

LM2670 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync August 1998 LM2670 SIMPLE SWITCHER ® High Efficiency 3A Step-Down Voltage Regulator with.

Key Features

  • n Efficiency up to 94% n Simple and easy to design with (using off-the-shelf external components) n 150 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 External Sync clock capability (280KHz to 400KHz) n 260 KHz fixed frequency internal oscillator n.
  • 40 to +125˚C operating junction temperature range.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
Texas Instruments Logo LM2670 High Efficiency 3-A Step-Down Voltage Regulator Texas Instruments
Texas Instruments Logo LM2670S-12 High Efficiency 3-A Step-Down Voltage Regulator Texas Instruments
Texas Instruments Logo LM2670S-3.3 High Efficiency 3-A Step-Down Voltage Regulator Texas Instruments
Texas Instruments Logo LM2670S-5.0 High Efficiency 3-A Step-Down Voltage Regulator Texas Instruments
Texas Instruments Logo LM2670T-12 High Efficiency 3-A Step-Down Voltage Regulator Texas Instruments

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