1N4574-1

Single Zener Diodes Overview

The MIC4574YN is a step-down switching regulator manufactured by Microchip Technology. It operates with an input voltage range of 4V to 24V and provides a single adjustable output voltage from 1.23V to 20V. The device delivers a maximum output current of 0.5A at a typical switching frequency of 220kHz. It features a quiescent current of 5000uA and achieves typical efficiency of 77%. The component is housed in an 8-pin PDIP package and supports industrial operating temperatures between -40°C and +85°C.

Single Zener Diodes Feature Summary

• Integrated buck topology for efficient DC-DC conversion
• Adjustable output voltage capability within specified limits
• Fixed internal switching frequency for simplified external component selection

Single Zener Diodes Applications

• General purpose step-down power supply designs
• Industrial control systems requiring regulated lower voltages
• Battery-powered equipment needing efficient voltage regulation

Single Zener Diodes Procurement Notes

Verify the specific suffix against official datasheets, as variations may exist. Confirm RoHS compliance status and lead-free manufacturing details directly with the manufacturer or authorized distributors. Ensure the ordering part number matches the required package type and temperature grade for your specific application requirements.

Single Zener Diodes Selection Notes

Select this component when a simple, low-cost buck regulator is needed for moderate current applications up to 0.5A. Consider the fixed switching frequency and input voltage range constraints. Evaluate thermal performance based on the expected load current and ambient temperature conditions within the industrial grade specification.

Single Zener Diodes Part Context

This part belongs to the MIC4574 series of switching regulators. It is designed as a simple solution for step-down voltage conversion. The series typically includes variants with different output configurations or fixed voltage options, sharing the same core controller architecture and pinout compatibility.

Single Zener Diodes Replacement Considerations

Check for direct pin-compatible alternatives within the same family. Verify that substitute parts meet the same input/output voltage ranges and current capabilities. Ensure thermal and electrical specifications align with the original design requirements.