LM3673 - step-down DC-DC converter

Product Overview

National Semiconductor

Datasheet Details

Part number	LM3673
Manufacturer	National Semiconductor
File Size	6.98 MB
Description	step-down DC-DC converter
Datasheet	LM3673 Datasheet
Additional preview pages of the LM3673 datasheet.

Product details

Description

The LM3673 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7V to 5.5V.

Features

and performance for mobile phones and similar portable systems. The LM3673 uses intelligent automatic switching between PWM and PFM for better efficiency. During PWM mode, the device operates at a fixed-frequency of 2 MHz (typ). Hysteretic PFM mode extends the battery life by reducing the quiescent current to 16 µA (typ) during light load and standby operation. Internal synchronous rectification provides high efficiency during PWM mode operation. In shutdown mode, the device turns off and reduce.

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Published: Dec 26, 2006 |