MIC4721YMM

Voltage Regulators - DC DC Switching Regulators Overview

The MIC4721YMM is a synchronous buck switching regulator IC manufactured by Microchip Technology, housed in a 10-MSOP package. It operates with an input voltage range of 2.7V to 5.5V and provides a single adjustable positive output from 1V to 5.5V. The device delivers up to 1.5A of output current at a fixed switching frequency of 2MHz. It features a typical quiescent current of 570µA and supports an operating junction temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-efficiency PWM buck topology for step-down conversion
• Fixed 2MHz switching frequency enabling compact external component sizing
• Adjustable output voltage capability within specified limits
• Internal compensation for stable closed-loop operation

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring efficient voltage regulation
• Embedded systems utilizing single-supply architectures
• Industrial control modules operating within wide temperature ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (YMM) corresponds to the 10-MSOP tube packaging configuration when ordering. Confirm RoHS compliance status and moisture sensitivity level requirements against your assembly process specifications. Ensure the selected distributor source matches the manufacturer's official part identification to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 1.5A current capacity is sufficient for the load, distinguishing it from higher-current variants like the MIC4720 or MIC4723. The 2MHz frequency offers a balance between efficiency and passive component size compared to lower-frequency regulators. Verify that the required output voltage range falls within the 1V to 5.5V adjustment window supported by the feedback network.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MIC4721 family of integrated switch buck regulators. It shares architectural similarities with the MIC4720 and MIC4723 series but is differentiated primarily by its maximum output current rating of 1.5A. All members of this family utilize a 2MHz switching frequency and similar MSOP-EP packaging options for thermal management.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct functional substitutes within the same current class include the MIC4720YMME, which offers 2A output capability in a compatible MSOP-EP package. Designers should verify pinout compatibility and thermal performance differences when transitioning between these closely related part numbers.