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LM3674 - 600mA Step-Down DC-DC Converter

Datasheet Summary

Description

The LM3674 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 600mA load current, over the entire input voltage range.

Features

  • and performance for mobile phones and similar portable systems. During PWM mode, the device operates at a fixed-frequency of 2 MHz (typ). Internal synchronous rectification provides high efficiency during PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 µA (typ). The LM3674 is available in SOT23-5 in leaded (PB) and lead-free (NO PB) versions. A high switching frequency of 2 MHz (typ) allows use of only three tiny external surfacemount components.

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Datasheet preview – LM3674

Datasheet Details

Part number LM3674
Manufacturer National Semiconductor
File Size 1.08 MB
Description 600mA Step-Down DC-DC Converter
Datasheet download datasheet LM3674 Datasheet
Additional preview pages of the LM3674 datasheet.

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Full PDF Text Transcription

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LM3674 2MHz, 600mA Step-Down DC-DC Converter in SOT 23-5 January 2006 LM3674 2MHz, 600mA Step-Down DC-DC Converter in SOT 23-5 General Description The LM3674 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 600mA load current, over the entire input voltage range. There are several fixed output voltages and adjustable output voltage versions. The device offers superior features and performance for mobile phones and similar portable systems. During PWM mode, the device operates at a fixed-frequency of 2 MHz (typ). Internal synchronous rectification provides high efficiency during PWM mode operation.
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