MIC2251YML-TR

Voltage Regulators - DC DC Switching Regulators Overview

The MIC2251YML-TR is a synchronous boost switching regulator manufactured by Microchip Technology, housed in an MLF-12 package. It supports an input voltage range of 2.5V to 10V and provides an adjustable output up to 30V with a maximum switch current of 3.5A. The device operates at a fixed frequency of 1MHz and includes integrated overvoltage protection and soft-start functionality. Designed for surface mount installation, it functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates overvoltage protection to safeguard downstream loads from excessive output voltages.
• Features internal soft-start circuitry to limit inrush current during power-up sequences.
• Utilizes synchronous rectification architecture to maximize conversion efficiency.

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronic devices requiring efficient voltage step-up
• Industrial control systems operating on single-cell lithium-ion or alkaline batteries
• Embedded sensor nodes needing stable regulated power from low-voltage sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'YML' corresponds to the MLF-12 package variant rather than other available packages like SOT-23-5. Confirm that the required output voltage range aligns with the 30V maximum specification. Ensure the design accounts for the 1MHz switching frequency regarding external component selection. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for boosting low input voltages to higher levels with high efficiency. The MLF-12 package offers thermal advantages over smaller footprints for 3.5A applications. Consider the fixed 1MHz frequency for EMI management compared to variable frequency alternatives. Evaluate the need for overvoltage protection features inherent to this model versus simpler regulators.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MIC2251 family of high-efficiency synchronous boost converters. It shares core topology with variants like the MIC2251-2 but differs in package and specific feature sets. The YML suffix denotes the MLF-12 package configuration, distinguishing it from TSOT-23-5 versions. It serves as a power management IC for applications requiring robust step-up regulation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts if considering alternative packages within the same family.