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AX5520 - 20A Fully Integrated Synchronous Boost Converter

Description

The AX5520/AX5521 is a high efficiency fully integrated synchronous Boost converter with built-in main switch and synchronous switch.

The device has 20A switch peak current capability and provides output voltage up to 18V(AX5520) or 30V(AX5521).

Features

  • - AX5520: 2.7V to 18V Input Range 3V to 18V Output Voltage Integrated 18V Rating 9mΩ Main and Synchronous Power Switches with 20A Peak Current Capability - AX5521: 2.7V to 30V Input Range 3V to 30V Output Voltage Integrated 30V Rating 9mΩ Main and Synchronous Power Switches with 20A Peak Current Capability - Adjustable Input UVLO through EN pin - Low Quiescent Current 70µA - Shutdown Supply Current 3.5μA - Resistor or Inductor DCR Current Sensing - Adjustable Frequency from 50kHz to 1MHz - Progr.

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Datasheet preview – AX5520

Datasheet Details

Part number AX5520
Manufacturer AXElite
File Size 938.53 KB
Description 20A Fully Integrated Synchronous Boost Converter
Datasheet download datasheet AX5520 Datasheet
Additional preview pages of the AX5520 datasheet.

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Full PDF Text Transcription

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AX5520/1 20A Fully Integrated Synchronous Boost Converter  GENERAL DESCRIPTION The AX5520/AX5521 is a high efficiency fully integrated synchronous Boost converter with built-in main switch and synchronous switch. The device has 20A switch peak current capability and provides output voltage up to 18V(AX5520) or 30V(AX5521). Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, allowing the AX5520/ AX5521 to be used in high power step-up applications. The 2.7V to 18V(MT AX5520) or 30V(AX5521) input voltage range supports a wide range of battery and AC powered inputs. The 70µA no load quiescent current extends operating run time in battery-powered systems. The operating frequency can be externally set for a 50kHz to 1MHz range.
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