MIC33050-AYHL-TR

Voltage Regulators - DC DC Switching Regulators Overview

The MIC33050-AYHL-TR is a synchronous step-down switching regulator from Microchip Technology's HyperLight Load series. It operates with an input voltage range of 2.7V to 5.5V and provides an adjustable output voltage between 0.4V and 4.9V. The device delivers up to 600mA of output current and features a fixed switching frequency of 4MHz. Packaged in a 12-MLF (3x3mm) surface-mount case, it supports operation across a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• HyperLight Load technology enables high efficiency at light loads by minimizing quiescent current consumption.
• Integrated synchronous rectification reduces external component count and improves power conversion efficiency.
• Current-mode control architecture ensures stable regulation and rapid transient response under varying load conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered consumer electronics
• IoT sensor nodes requiring low standby power
• Embedded systems with single-cell lithium-ion power sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'AYHL' confirms the adjustable output variant and 12-MLF package. Confirm RoHS compliance status via the manufacturer datasheet. Ensure ordering quantities match standard reel or cut-tape specifications provided by authorized distributors. Cross-reference the part number against the latest Microchip PCN documents for any recent packaging or manufacturing location changes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring a compact footprint and high efficiency at both full and light loads. The 4MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the application input voltage remains within the 2.7V to 5.5V range and that the thermal design accommodates the 12-MLF package constraints for the expected current load.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MIC33050 family of HyperLight Load regulators, designed for space-constrained applications. It succeeds earlier Micrel-branded designs following Microchip's acquisition. The family emphasizes ultra-low no-load current to extend battery life in intermittently active devices, distinguishing it from standard buck converters that may draw higher quiescent current.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints if considering alternative manufacturers, as pinouts and thermal pad configurations may differ significantly between brands.