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ML4769 - 2 Cell / Adjustable Output Boost Regulator with Load Disconnect

General Description

The ML4769 is a continuous conduction boost regulator designed for DC to DC conversion in multiple cell battery power 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 Pulse Frequency Modulation and internal synchronous rectification for high efficiency Isolates the load from the input during shutdown Minimum external components Low ON resistance internal switching FETs Low supply current Adjustable output voltage (3V to 5.5V) s s s s s s s.
  • Some Packages Are Obsolete BLOCK.

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Datasheet Details

Part number ML4769
Manufacturer Micro Linear
File Size 240.96 KB
Description 2 Cell / Adjustable Output Boost Regulator with Load Disconnect
Datasheet download datasheet ML4769 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 PRELIMINARY ML4769* 2 Cell, Adjustable Output Boost Regulator with Load Disconnect GENERAL DESCRIPTION The ML4769 is a continuous conduction boost regulator designed for DC to DC conversion in multiple cell battery power 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 ML4769 is capable of start-up with input voltages as low as 1.8V. The output voltage can be set anywhere between 3.0V and 5.5V by an external resistor divider connected to the SENSE pin. An integrated synchronous rectifier eliminates the need for an external Schottky diode and provides a lower forward voltage drop, resulting in higher conversion efficiency.