LM2670, LM2 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

National Semiconductor

Description

LM2670 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync August 1998 LM2670 SIMPLE SWITCHER ® High Efficiency 3A Step-Down Vo.
The LM2670 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulato.

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LM2670 Datasheet Preview — This datasheet PDF includes multiple part numbers: LM2670, LM2. Please refer to the document for exact specifications by model.

Datasheet Specifications

Part number: LM2670, LM2
Manufacturer: National Semiconductor
File Size: 361.84 KB
Datasheet: LM2-670.pdf
Description: SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator
Note: This datasheet PDF includes multiple part numbers: LM2670, LM2.
Please refer to the document for exact specifications by model.

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 conditi

Applications

* n Simple to design, high efficiency ( > 90%) step-down switching regulators n Efficient system pre-regulator for linear voltage regulators n Battery chargers n Communications and radio equipment regulator with synchronized clock frequency Typical Application DS100942-3 SIMPLE SWITCHER ® is a regi

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LM2 SIMPLE SWITCHER High Efficiency Step-Down Voltage Regulator National Semiconductor

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