AX5520 Overview
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...
AX5520 Key Features
- AX5520: 2.7V to 18V Input Range 3V to 18V Output Voltage Integrated 18V Rating 9mΩ Main and Synchronous Power Switches w
- AX5521: 2.7V to 30V Input Range 3V to 30V Output Voltage Integrated 30V Rating 9mΩ Main and Synchronous Power Switches w
- 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
- Programmable Soft-start
- Cycle-by-Cycle Current Limit
- Thermal Shutdown
AX5520 Applications
- 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