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ML4866 - 3.3V Output DC-DC Step-Down Converter

Description

The ML4866 is a high efficiency pulse width modulated (PWM) buck regulator designed for use in 5V systems or portable equipment that need a compact, efficienct 3.3V supply.

It has a switching frequency of 120kHz and uses synchronous rectification to optimize power conversion efficiency.

Features

  • s High power conversion efficiency over 2 decades of load current No external FETs or diodes; minimum external components 3.5V to 6.5V input voltage range Significantly extends battery life over linear regulator based solutions Micropower operation Low shutdown mode quiescent current s s s s s (.
  • Indicates Part is End Of Life as of July 1, 2000) BLOCK.

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Datasheet Details

Part number ML4866
Manufacturer Micro Linear
File Size 248.43 KB
Description 3.3V Output DC-DC Step-Down Converter
Datasheet download datasheet ML4866 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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July 2000 ML4866* 3.3V Output DC–DC Step-Down Converter GENERAL DESCRIPTION The ML4866 is a high efficiency pulse width modulated (PWM) buck regulator designed for use in 5V systems or portable equipment that need a compact, efficienct 3.3V supply. It has a switching frequency of 120kHz and uses synchronous rectification to optimize power conversion efficiency. Unlike other solutions, the ML4866 requires no external diodes or FETs. The ML4866 can provide up to 500mA of output current, and operates over an input voltage range of 3.5V to 6.5V (3 to 4 cells or a 5 VDC supply). A complete switched mode power converter can be quickly and easily implemented with few external components.
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