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ML4865 - High Voltage High Current Boost Regulator

Description

The ML4865 is a high voltage, 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.

Features

  • s Guaranteed full load start-up and operation at 1.8V input s Continuous conduction mode for high output current s Very low quiescent current s Pulse frequency modulation and internal synchronous rectification for high efficiency s Maximum switching frequency > 200kHz s Minimum external components s Low ON resistance internal switching FETs s Fixed 12V output can be adjusted to lower output voltages BLOCK.

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Datasheet Details

Part number ML4865
Manufacturer Micro Linear
File Size 234.49 KB
Description High Voltage High Current Boost Regulator
Datasheet download datasheet ML4865 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 ML4865 High Voltage High Current Boost Regulator GENERAL DESCRIPTION The ML4865 is a high voltage, 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 ML4865 is capable of start-up with input voltages as low as 1.8V and generates a 12V output with output voltage accuracy of ±4%. Unlike most boost regulators, the ML4865 isolates the load from the battery when the SHDN pin is high.
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