LM3673 Datasheet PDF - National Semiconductor step-down DC-DC converter Specs

LM3673 - step-down DC-DC converter

Datasheet Summary

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.

It provides up to 350mA load current, over the entire input voltage range.

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.

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.

📁 Similar Datasheet

LM3673 - 350-mA Step-Down DC-DC Converter (Texas Instruments)

LM3670 - Miniature Step-Down DC-DC Converter (Texas Instruments)

LM3671 - 600-mA Step-Down DC-DC Converter (Texas Instruments)

LM3671-Q1 - 600-mA Step-Down DC-DC Converter (Texas Instruments)

LM3674 - 600-mA Step-Down DC-DC Converter (Texas Instruments)

LM3676 - 2-MHz 600-mA Step-Down DC-DC Converter (Texas Instruments)

LM3677 - 600mA Miniature Step-Down DC-DC Converter (Texas Instruments)

LM3678 - High-Performance Miniature 1.5-A Step-Down DC-DC Converter (Texas Instruments)

LM3679 - 350mA Miniature Step-Down DC-DC Converter (Texas Instruments)

LM360 - High Speed Differential Comparator (Texas Instruments)

Full PDF Text Transcription

Click to expand full text

www.DataSheet4U.com LM3673 2MHz, 350mA Step-Down DC-DC Converter November 2006 LM3673 2MHz, 350mA Step-Down DC-DC Converter General 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. It provides up to 350mA load current, over the entire input voltage range. There are several different fixed voltage output options available as well as an adjustable output voltage version ranging from 1.1V to 3.3V. The device offers superior 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).

Published: Dec 26, 2006 |