MIC5190BML-TR

Overview

The MIC5190BML-TR is an ultra high-speed linear regulator controller manufactured by Microchip Technology, utilizing Micrel architecture. It employs an external N-Channel FET as the power device to handle fast load demands of microprocessor cores and ASICs. The component features a signal bandwidth exceeding 500kHz and maintains output voltage stability with minimal capacitance. It offers a +1.0% initial output tolerance and dropout down to 25mV at 10A. The input voltage range spans from 0.9V to 5.5V, while the adjustable output voltage extends down to 0.5V. It operates within a junction temperature range of –40°C to +125°C and is housed in a 3mm × 3mm 10-lead MLF™ package.

Feature Summary

• Ultra high-speed operation with large signal bandwidth greater than 500kHz for rapid transient response
• Logic-controlled shutdown and current limit protection for enhanced system safety
• Stable with any type or value of output capacitor, simplifying design requirements
• Filters switching frequency noise on the input to maintain clean output voltage

Applications

• Distributed power supplies
• ASIC power supplies
• DSP, µP, and µC power supplies

Procurement Notes

Verify the specific ordering suffix 'BML' corresponds to the 10-lead MLF™ package configuration before procurement. Confirm that the manufacturer documentation explicitly supports the requested revision level. Ensure compatibility with the required operating temperature range of –40°C to +125°C. Cross-reference the datasheet version to validate electrical characteristics against current production standards.

Selection Notes

Select this component when designing systems requiring ultra-high speed regulation for microprocessors or ASICs. It is suitable for applications needing excellent line and load regulation with minimal output capacitance. Consider the requirement for an external N-Channel MOSFET and appropriate VCC supply voltage. Verify that the input voltage range of 0.9V to 5.5V aligns with the system power rails.

Part Context

The MIC5190 series includes variants such as the MIC5190YML and MIC5190BMM, offering different package options like MSOP-10. The MIC5191 variant is recommended for output voltages greater than 1V due to its higher reference voltage. These controllers are part of a family designed for high-current active filtering and linear regulation tasks in demanding electronic environments.

Replacement Considerations

MIC5190YML-TR

FAQ

What is the minimum output voltage achievable with the MIC5190BML-TR?

The MIC5190BML-TR supports an adjustable output voltage down to 0.5V.

How does the MIC5190 handle load transients?

It achieves signal bandwidths greater than 500kHz, allowing it to cope with fast load demands while keeping the output voltage clean with minimal capacitance.

Is the MIC5190 stable with ceramic capacitors?

Yes, the MIC5190 is stable with any type or value of output capacitor, including low ESR ceramic capacitors.