IW873-00

Voltage Regulators - DC DC Switching Regulators Overview

The iW873-00 is a secondary-side synchronous rectification controller featuring an integrated 60V power MOSFET. It utilizes adaptive control technology to minimize dead time, eliminating the need for parallel Schottky diodes. The device supports output voltages from 2.4V up to 15W and operates with input voltages up to 25V. It includes an integrated pulse linear regulator allowing operation down to 2.4V output voltage and supports 3.6V to 12V AC/DC adapters. No-load operating current is less than 0.65mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 60V MOSFET for synchronous rectification to replace traditional Schottky diodes
• Adaptive turn-off control minimizes dead time and eliminates parallel diode requirements
• Ultra-low no-load operating current enhances efficiency in standby modes
• Integrated adaptive voltage position monitor ensures stable dynamic load response

Voltage Regulators - DC DC Switching Regulators Applications

• High-power-density smartphone power adapters
• Tablet power adapter designs
• AC/DC adapters supporting 3.6V to 12V outputs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific ordering suffix against official Renesas documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with primary-side controllers for complete system integration. Confirm that the integrated 60V rating meets the specific transformer secondary voltage requirements of the target design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when high efficiency and reduced bill-of-materials cost are critical for compact power supplies. The integrated MOSFET simplifies thermal management compared to discrete solutions. Verify that the application requires secondary-side sensing and that the input voltage range aligns with the specified 25V limit.

Voltage Regulators - DC DC Switching Regulators Part Context

The iW873 belongs to Renesas' synchronous rectification controller family designed for modern high-efficiency power conversion. It complements primary-side controllers to deliver optimized performance in consumer electronics charging applications. The solution addresses the trend toward higher power density in mobile device adapters.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official cross-reference guides for equivalent secondary-side synchronous rectifier controllers with similar voltage ratings and integration levels.