Download the AX5521 datasheet PDF.
This datasheet also covers the AX5520 variant, as both devices belong to the same 20a fully integrated synchronous boost converter family and are provided as variant models within a single manufacturer datasheet.
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).
Key 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.
Full PDF Text Transcription for AX5521 (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
AX5521. For precise diagrams, and layout, please refer to the original PDF.
AX5520/1 20A Fully Integrated Synchronous Boost Converter GENERAL DESCRIPTION The AX5520/AX5521 is a high efficiency fully integrated synchronous Boost converter with b...
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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 freque
AX5521 Datasheet
