AL17051V5W5-7

Overview

The AL17051V5W5-7 is an ultra-low standby power high-voltage buck converter manufactured by Diodes Incorporated. It integrates a MOSFET rated up to 700V and provides a fixed 5V output with a maximum output current of 50mA. The device operates within an input voltage range starting at 5.35V and features a typical operating supply current of 195µA. It achieves high efficiency, reaching 60% at the 50mA output load, while maintaining no-load operation power below 10mW. The component is housed in a SOT-25-5 package and supports surface-mount installation.

Feature Summary

• Integrates a high-voltage MOSFET capable of handling up to 700V for robust power conversion
• Delivers fixed 5V output with optimized performance for low-current applications up to 50mA
• Maintains ultra-low standby power consumption with no-load operation power less than 10mW
• Ensures high energy efficiency reaching 60% at full 50mA output load

Applications

• High-voltage AC/DC power supplies requiring minimal standby power
• Battery-powered devices needing efficient step-down conversion from high input voltages
• Industrial control systems utilizing isolated or non-isolated high-voltage buck topologies
• Consumer electronics with strict no-load power consumption requirements

Procurement Notes

Verify the specific suffix W5-7 corresponds to the required tape-and-reel packaging configuration before ordering. Confirm that the fixed 5V output aligns with system design requirements, as adjustable variants may exist within the family. Ensure compatibility with the SOT-25-5 footprint during PCB layout. Cross-reference the manufacturer's latest datasheet for any updates on thermal characteristics or recommended external component values to guarantee reliable operation under intended load conditions.

Selection Notes

Select this component when designing circuits that require direct conversion from high input voltages without external gate drivers. The integrated 700V MOSFET simplifies bill of materials compared to discrete solutions. Consider the 50mA output limit when sizing for load demands; higher current requirements necessitate alternative regulators. The fixed 5V output eliminates the need for external feedback resistors, reducing component count. Evaluate the 195µA supply current against total system power budgets for battery-operated applications.

Part Context

This part belongs to the AL1705x series of ultra-low standby power HV buck converters from Diodes Incorporated. The series focuses on minimizing power loss in both loaded and no-load states, making it suitable for energy-efficient power management. The AL17051 variant specifically offers a fixed 5V output, distinguishing it from other models in the lineup that may provide different voltage levels or adjustability options.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications if considering alternative manufacturers' high-voltage buck converters.