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ML4872 - High Current Boost Regulator with Shutdown

General Description

The ML4872 is a continuous conduction boost regulator designed for DC to DC conversion in multiple cell battery powered systems.

Continuous conduction allows the regulator to maximize output current for a given inductor.

Key Features

  • s Guaranteed full load start-up and operation at 1.8V Input Continuous conduction mode for high output current Very low supply current (20µA output referenced) for micropower operation Pulse frequency modulation and internal synchronous rectification for high efficiency Maximum switching frequency > 200kHz Minimum external components Low ON resistance internal switching FETs 5V and 3.3V output versions s s s s s s s BLOCK.

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Datasheet Details

Part number ML4872
Manufacturer Micro Linear
File Size 249.13 KB
Description High Current Boost Regulator with Shutdown
Datasheet download datasheet ML4872 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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Tem ommercial Extended C 70˚C to C 0˚ -2 ment dheld Equip an H e bl ta or for P G FEATURIN ge perature Ran July 2000 ML4872 High Current Boost Regulator with Shutdown GENERAL DESCRIPTION The ML4872 is a continuous conduction boost regulator designed for DC to DC conversion in multiple cell battery powered systems. Continuous conduction allows the regulator to maximize output current for a given inductor. The maximum switching frequency can exceed 200kHz, allowing the use of small, low cost inductors. The ML4872 is capable of start-up with input voltages as low as 1.8V and is available in 5V and 3.3V output versions with an output voltage accuracy of ±3%.