SG1526BJ-883B

Overview

The SG1526BJ-883B is a high-reliability, isolated switching regulator controller manufactured by Microchip Technology. It supports Buck and Flyback topologies with two outputs. The device operates within a frequency range of 1 Hz to 500 kHz and delivers an output current of 100 mA. It features a maximum duty cycle of 49% and includes shutdown functionality. The component functions in temperatures from -55°C to +125°C and is housed in a CDIP-18 through-hole package.

Feature Summary

• Supports Buck and Flyback converter topologies for versatile DC-DC power conversion
• Provides dual output channels for multi-rail power management applications
• Features voltage mode PWM control with integrated shutdown capability
• Designed for high-reliability environments with extended industrial temperature ratings

Applications

• High-reliability isolated switching regulators
• Military and aerospace DC-DC power conversion systems
• Industrial power supply designs requiring ruggedized components

Procurement Notes

Verify the specific ordering suffix and manufacturer source carefully, as this part number may be subject to factory special order requirements. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer before placing orders. Ensure the CDIP-18 package type matches your PCB footprint requirements.

Selection Notes

Select this component when designing isolated power supplies requiring high reliability and wide operating temperature ranges. It is suitable for applications needing both Buck and Flyback capabilities within a single controller architecture. Consider the 100 mA output current limit and 500 kHz maximum switching frequency when sizing external passive components.

Part Context

This component belongs to the SG1526B series of regulating pulse width modulators. It is classified under PMIC - Power Management ICs and specifically Switching Controllers. The device is designed for robust performance in demanding environments, distinguishing it from standard commercial-grade alternatives through its construction and testing standards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical specifications if considering alternative controllers from other manufacturers.