MIC2091-1YM5-TR

Overview

The MIC2091-1YM5-TR is a high-side power distribution switch manufactured by Microchip Technology. It features a P-channel MOSFET with a 1:1 input-to-output ratio, designed for load driver applications. The device supports a load voltage range of 1.8V to 5.5V and delivers a maximum output current of 100mA. Key electrical specifications include a typical on-resistance of 700 milliohms and an open/switch interface type. It incorporates automatic restart current limiting recovery for fault protection and includes a status flag feature. The component operates within a junction temperature range of -40°C to 125°C and is housed in a SOT-23-5 package.

Feature Summary

• Integrates automatic restart current limiting recovery to handle short circuit conditions without manual intervention.
• Provides a status flag output to indicate the operational state of the power switch.
• Utilizes a non-inverted input interface for straightforward control logic integration.

Applications

• Power distribution in embedded systems requiring high-side switching
• Load driver circuits for peripheral devices
• Protection mechanisms in portable electronic equipment

Procurement Notes

Verify the specific suffix 'TR' corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the SOT-23-5 footprint matches the target PCB design. Ensure the operating temperature range aligns with the environmental constraints of the final application. Cross-reference the datasheet revision history for any recent changes to electrical characteristics or pinout definitions before finalizing the bill of materials.

Selection Notes

Select this component when a high-side switch with automatic fault recovery is necessary for low-current loads up to 100mA. The P-channel architecture simplifies gate drive requirements compared to N-channel alternatives. Consider the thermal performance within the SOT-23-5 package if continuous current接近 the maximum limit. The inclusion of a status flag allows for system monitoring without additional sensing circuitry.

Part Context

This part belongs to the MIC2091 series of current-limiting power distribution switches from Microchip Technology. It is distinct from the MIC2090 series, which typically offers lower current ratings, and other variants like the MIC2091-2YM5-TR, which may feature latch-off behavior instead of auto-restart. The series is designed for robust power management in space-constrained applications.

Replacement Considerations

Direct substitutes within the same family include MIC2091-1YM5 (non-trailing TR) for different packaging needs. For applications requiring latch-off protection instead of auto-restart, consider the MIC2091-2YM5-TR. Lower current options such as the MIC2090-1YM5-TR are available if the 50mA rating suffices.