SG2524J

Overview

The SG2524J is a high-reliability regulating pulse-width modulator manufactured by Microchip Technology. It supports voltage-mode control with a maximum switching frequency of 400 kHz and a maximum duty cycle of 45%. The device features dual outputs capable of sourcing up to 50 mA each, with a reference voltage of 5 V. It operates within an extended temperature range from -55°C to 125°C and accepts input voltages between 8 V and 40 V, nominally 20 V.

Feature Summary

• High-reliability construction suitable for demanding environments
• Dual output drivers for versatile converter topologies
• Voltage-mode control architecture for stable regulation

Applications

• Military aerospace power systems
• Industrial power supplies
• High-reliability DC-DC converters

Procurement Notes

Verify the manufacturer source carefully as SG2524 variants are produced by multiple vendors including Texas Instruments and Microchip. Confirm the specific suffix 'J' indicates the correct military-grade or high-reliability specification required for your application. Ensure compatibility with existing PCB footprints and thermal management requirements before ordering.

Selection Notes

Select this component when high reliability and wide temperature operation are critical. Compare against standard commercial grades if cost is a primary constraint. Verify that the 400 kHz frequency and 50 mA output current meet system requirements. Consider package availability and lead times associated with specialized high-reliability parts.

Part Context

This part belongs to the SG2524 family of PWM controllers, widely used in switch-mode power supplies. The 'J' suffix typically denotes a specific grade or package variant optimized for high-reliability applications. It serves as a core control element for generating precise PWM signals in various industrial and defense power conversion designs.

Replacement Considerations

Direct substitutes include SG2524DRG4 from Texas Instruments for commercial applications, though reliability ratings differ. Cross-reference pinouts and electrical specifications carefully. Alternative high-reliability options may require design adjustments due to parameter variations.