MIC5190YMM

Overview

The MIC5190YMM is an ultra high-speed linear regulator controller utilizing an external N-Channel FET. It provides a +1.0% initial output tolerance and supports input voltages from 0.9V to 5.5V. The device features adjustable output voltage down to 0.5V with a 0.5V internal reference. It offers dropout as low as 25mV at 10A and maintains stability with any output capacitor. The component operates within a junction temperature range of –40°C to +125°C and is housed in a 10-lead MSOP-10 package.

Feature Summary

• Ultra high-speed operation with large signal bandwidth exceeding 500kHz for fast load transient response
• Logic-controlled shutdown and current limit protection for system safety
• Stable with any output capacitor type, eliminating complex compensation requirements
• Filters switching frequency noise on the input while maintaining clean output voltage

Applications

• Distributed power supplies for board-level regulation
• ASIC power supplies requiring precise voltage control
• DSP, microprocessor, and microcontroller core power supplies

Procurement Notes

Verify the specific suffix 'YMM' corresponds to the MSOP-10 package and Pb-free status. Confirm the operating junction temperature range matches the application requirements. Ensure the design accounts for the external N-Channel MOSFET selection, as the MIC5190YMM functions as a controller rather than a complete standalone regulator solution.

Selection Notes

Select this component when driving high-current loads with rapid transient demands where standard LDOs lack sufficient bandwidth. The external MOSFET allows customization of current handling and thermal performance. Ensure the VCC supply voltage meets the gate drive requirements for the selected pass transistor. This controller is suitable for applications needing active filtering of switching regulator noise.

Part Context

The MIC5190 series includes variants such as the MIC5190BML and MIC5190YML. The MIC5190YMM specifically denotes the MSOP-10 package version. The 'Y' suffix indicates Pb-free manufacturing. The device is part of Micrel's high-performance analog portfolio, designed to address the power delivery challenges of modern low-voltage, high-current digital logic families.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.