MIC38C44YM

AC DC Converters, Offline Switchers Overview

The MIC38C44YM is a monolithic switching mode power supply (SMPS) controller manufactured by Microchip Technology. It supports multiple topologies including Boost, Buck, Flyback, and Forward configurations. The device operates with a fixed switching frequency of 500 kHz and features a maximum duty cycle of 50%. It provides a regulated output voltage of 5 V at an output current capability of 500 mA. The IC is housed in an 8-SOIC package and functions within a supply voltage range of 7.6 V to 20 V. It is designed for surface mount installation and operates reliably across a temperature range of -40°C to +85°C.

AC DC Converters, Offline Switchers Feature Summary

• Supports versatile power conversion topologies including boost, buck, flyback, and forward applications.
• Integrates synchronous rectification control for enhanced efficiency in DC-DC switching designs.
• Features internal frequency control mechanisms to maintain stable operation at high switching speeds.

AC DC Converters, Offline Switchers Applications

• Isolated power supply designs utilizing flyback or forward converter architectures
• Non-isolated step-up (boost) and step-down (buck) DC-DC converter circuits
• General-purpose switched-mode power supply systems requiring multi-topology flexibility

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the component meets RoHS3 compliance standards required for your assembly process. Check the latest datasheet revision history for any updates to electrical characteristics or recommended operating conditions before finalizing the design.

AC DC Converters, Offline Switchers Selection Notes

Select this controller when designing systems requiring a single IC solution for multiple power topologies. Ensure the external components support the 500 kHz switching frequency and the 50% maximum duty cycle constraints. Verify that the input voltage range aligns with the 7.6 V to 20 V operational limits for stable regulation.

AC DC Converters, Offline Switchers Part Context

This component belongs to the MIC38C4x series of monolithic SMPS controllers from Microchip Technology. The series offers integrated solutions for various power management needs, supporting both isolated and non-isolated converter designs. It is part of the broader Power Management ICs (PMIC) category, providing flexible control options for industrial and commercial power applications.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Microchip's official cross-reference tools for potential alternatives if this specific part number is unavailable.