FS6X1220RJ

AC DC Converters, Offline Switchers Overview

The FS6X1220RJX is a Fairchild Power Switch (FPS) integrated circuit designed for offline power supply applications. It operates with an input voltage range of 10 V to 23 V and delivers a maximum output current of 23.7 A. The device utilizes pulse width modulation (PWM) control mode for efficient switching regulation. It is housed in a TO-263 D2PAK package with six terminals, featuring a plastic/epoxy body. The component is rated for operation within a temperature range of -25 °C to +85 °C and complies with RoHS standards.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage power switch with PWM controller for simplified design
• Employs current-mode control technique for stable regulation
• Features self-protected architecture suitable for compact power supplies

AC DC Converters, Offline Switchers Applications

• All-in-one PC power supplies
• Offline AC-DC conversion systems
• General purpose switched-mode power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'X' against the manufacturer's official datasheet to confirm packaging type and compliance status. Ensure the ordering part number matches the exact pin configuration and thermal characteristics required for your PCB layout. Cross-reference the revision level to guarantee compatibility with existing design specifications.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring a monolithic solution that combines power switching and control logic. Consider the TO-263 package for adequate heat dissipation at the specified 23.7 A output capability. Evaluate the 10 V to 23 V input range against your system's supply variations to ensure reliable operation under all expected conditions.

AC DC Converters, Offline Switchers Part Context

This device belongs to the Fairchild Power Switch (FPS) family, which integrates a high-voltage MOSFET with a controller IC. This integration reduces component count and board space compared to discrete solutions. The FPS technology is optimized for cost-effective, high-reliability power supplies in consumer and industrial electronics.

AC DC Converters, Offline Switchers Replacement Considerations

Consult onsemi or Fairchild Semiconductor official documentation for direct cross-reference part numbers. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution.