MIC5190YML-TR

Overview

The MIC5190YML-TR is an ultra high-speed linear regulator controller manufactured by Microchip Technology, utilizing a 10-lead MLF™ package. It operates with an input voltage range of 0.9V to 5.5V and supports VCC voltages from 4.5V to 13.2V. The device features a +1.0% initial output tolerance and adjustable output voltage down to 0.5V using an internal 0.5V reference. It provides excellent line and load regulation, logic-controlled shutdown, and current limit protection.

Feature Summary

• Ultra high-speed operation with large signal bandwidth exceeding 500kHz for fast load demands
• Active filtering capability that suppresses switching frequency noise on the input
• Stable with any type or value of output capacitor without requiring specific ESR characteristics
• Integrated logic-controlled shutdown and current limit protection mechanisms

Applications

• Distributed power supplies for board-level distribution
• Power supplies for ASICs and microprocessors
• Post-regulation active filters for switching regulators

Procurement Notes

Verify the component manufacturer origin, as the MIC5190 was originally developed by Micrel before acquisition. Confirm the specific package variant matches the design requirements, as the YML suffix denotes the MLF™ package. Ensure the ordering suffix corresponds to the correct tape and reel configuration for automated assembly processes.

Selection Notes

Select this controller when driving external N-Channel MOSFETs requires high bandwidth and low dropout performance. It is suitable for applications needing precise regulation below 1.0V where standard LDOs lack sufficient speed. Consider thermal management for the external pass element, as the controller lacks internal thermal protection for the MOSFET.

Part Context

This component belongs to the MIC5190 family of ultra high-speed linear regulator controllers designed for demanding digital loads. It serves as a bridge between switching power sources and sensitive core voltages, offering superior transient response compared to traditional fixed-output regulators while maintaining low noise characteristics.

Replacement Considerations

MIC5190BML

FAQ

What is the minimum output voltage achievable with the MIC5190?

The minimum output voltage is 0.5V, determined by the internal reference voltage when the feedback resistor R1 is set to zero.

Does the MIC5190 require a specific type of output capacitor?

No, the device is stable with any type or value of output capacitor, including ceramic capacitors with low ESR and ESL.