MIC2033-12AYMT-TR

Overview

The MIC2033-12AYMT-TR is a high-side power distribution switch manufactured by Microchip Technology. It features a fixed current limit of 1.2A and operates within an input voltage range of 2.5V to 5.5V. The device utilizes a 6-pin SOT-23 package and includes thermal shutdown protection. Key electrical parameters include a maximum on-resistance of 177mΩ, a typical quiescent current of 100µA, and a fault status output with a 32ms delay. The operating junction temperature range extends from -40°C to +125°C.

Feature Summary

• Provides high-side power switching with fixed current limiting for system reliability
• Includes thermal shutdown and undervoltage lockout for comprehensive protection
• Features an open-drain fault status flag with built-in delay for accurate error reporting
• Supports logic-controlled enable inputs for flexible system integration

Applications

• Power distribution in embedded systems requiring overcurrent protection
• Peripheral power management in industrial control applications
• High-side switching for loads with capacitive requirements using soft-start

Procurement Notes

Verify the specific suffix 'YMT' against the official datasheet to confirm the package type (SOT-23) and tape-and-reel configuration. Ensure the 1.2A current limit variant matches the design requirements. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and active status. Check for any recent lifecycle notices or obsolescence warnings directly from Microchip Technology before finalizing procurement.

Selection Notes

Select this component when a high-side switch with precise 1.2A current limiting is required. It is suitable for applications needing thermal protection and fault signaling via an open-drain output. Consider the 2.5V to 5.5V supply range and the SOT-23 footprint constraints. Evaluate if the soft-start capability via external capacitor meets the inrush current requirements of the connected load.

Part Context

This part belongs to the MIC2033 family of high-accuracy, high-side power switches. The family offers various current limit options including 0.5A, 0.8A, 1A, and 1.2A. These devices are designed to replace traditional fuses and circuit breakers, providing resettable protection in compact packages like SOT-23 and DFN.

Replacement Considerations

The MIC2033 is pin-compatible with the MIC2005 series. Verify that the substitute device supports the same 1.2A current limit and voltage range. Confirm package compatibility and ensure the replacement maintains the required fault status functionality and thermal protection features.