SG2524DRG4

Overview

The SG2524DRG4 is a regulating pulse-width modulator manufactured by Texas Instruments, designed for switching power supply applications. It supports multiple topologies including boost, buck, flyback, forward, and push-pull configurations. The device operates with a maximum switching frequency of 450 kHz and provides two output channels. It features a duty cycle range up to 45% and delivers an output current of 50 mA. The internal regulator ensures stable operation with an output voltage tolerance between 4.8 V and 5.2 V. It functions within a temperature range of -25°C to +85°C and is housed in a 16-pin SOIC narrow package.

Feature Summary

• Supports versatile converter topologies such as push-pull, flyback, forward, buck, and boost
• Provides dual output channels for synchronized control applications
• Integrates a regulated internal power supply for stable operation

Applications

• Push-pull DC-DC converters
• Flyback power supplies
• Forward mode power conversion systems

Procurement Notes

Verify the component authenticity by checking the manufacturer marking against official Texas Instruments documentation. Confirm the RoHS compliance status and lead-free designation as specified in the datasheet. Ensure the package type matches the required 16-SOIC form factor for your PCB layout. Cross-reference the ordering suffix DRG4 to confirm it aligns with your specific packaging and environmental requirements.

Selection Notes

Select this component when designing multi-topology switching regulators requiring precise PWM control. It is suitable for applications needing dual outputs or flexible converter architectures like push-pull or flyback. Consider the 450 kHz frequency limit and 45% duty cycle constraint during design. Ensure the operating environment stays within the -25°C to +85°C range for reliable performance.

Part Context

This part belongs to the SG2524 series of switching controllers from Texas Instruments. It is a variant of the legacy UA2524/SG2524 family, adapted for modern manufacturing standards. The 'G4' suffix indicates a lead-free and RoHS-compliant version of the standard SG2524DR. It serves as a direct replacement for older non-compliant versions in existing designs while maintaining pin compatibility.

Replacement Considerations

The SG2524DR is the non-RoHS equivalent. Verify if the original design requires lead-free compliance before substituting.