MIC38HC42-1YM

AC DC Converters, Offline Switchers Overview

The MIC38HC42-1YM is a monolithic switching mode power supply (SMPS) controller manufactured by Microchip Technology. It supports multiple converter 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 96 percent. It provides a regulated output voltage of 5 V with a drive current capability of 500 mA. The component functions within an ambient temperature range of -40°C to +85°C and is housed in a surface-mount SOIC-14 package.

AC DC Converters, Offline Switchers Feature Summary

• Supports versatile power conversion topologies such as boost, buck, flyback, and forward converters
• Integrates high-current gate driver capable of sourcing 500 mA for efficient switching control
• Enables precise regulation through a wide maximum duty cycle range up to 96 percent

AC DC Converters, Offline Switchers Applications

• Isolated DC-DC converter designs using flyback topology
• Non-isolated step-up or step-down voltage regulation circuits
• Forward converter implementations requiring high-frequency operation
• Buck-boost power management systems for variable input sources

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix '1YM' against the official Microchip datasheet to confirm pinout compatibility and electrical specifications. Ensure the procurement source provides valid RoHS compliance documentation. Confirm that the SOIC-14 package dimensions match your PCB footprint requirements before finalizing orders.

AC DC Converters, Offline Switchers Selection Notes

Select this controller when designing circuits requiring a fixed 500 kHz switching frequency and robust gate drive capabilities. It is suitable for applications needing support for both isolated and non-isolated topologies. Consider the SOIC-14 package size and the -40°C to +85°C operating temperature range during thermal and spatial planning.

AC DC Converters, Offline Switchers Part Context

This component belongs to the MIC38C42 series of monolithic SMPS controllers from Microchip Technology. These devices are designed for general-purpose power supply applications, offering integrated protection features and high-efficiency switching characteristics. The series is commonly utilized in industrial and consumer electronics where reliable voltage regulation is critical.

AC DC Converters, Offline Switchers Replacement Considerations

Publicly confirmed substitute part numbers for the MIC38HC42-1YM are not available in the provided reference data. Verify cross-references with Microchip technical support or authorized distributors for compatible alternatives.