MIC2039AYMT-T5

Overview

The MIC2039AYMT-T5 is a high-side power distribution switch manufactured by Microchip Technology. It operates within an input voltage range of 2.5 V to 5.5 V and provides a single output capable of up to 350 mA. The device features adjustable current limiting, programmable from 200 mA to 2.5 A via an external resistor. Key electrical parameters include a maximum on-resistance of 125 mOhms, a maximum turn-on time of 700 us, and a maximum blanking time of 5 us. It is housed in a SOT-23-6 package and supports operation temperatures from -40 C to +125 C.

Feature Summary

• Provides high-side power switching with adjustable current limit protection for system reliability.
• Includes thermal shutdown and overcurrent protection mechanisms to safeguard the device and load.
• Features a Kickstart capability to handle momentary high-current surges during startup or steady-state operation.

Applications

• Power distribution in embedded systems requiring high-side switching
• Protection circuits for loads with high inrush currents such as capacitive loads
• Industrial control systems operating within specified temperature ranges

Procurement Notes

Verify the specific suffix 'A' against official Microchip documentation to confirm pinout compatibility and enable logic polarity. Ensure the ordering part number matches the exact package type and tape-and-reel specifications required for your assembly process. Cross-reference the manufacturer's latest datasheet to confirm active status and any potential design-in changes.

Selection Notes

Select this component when a high-side switch with precise current limiting is required. The adjustable limit allows customization for various load profiles. Consider the 125 mOhm on-resistance for power dissipation calculations. Verify that the 2.5 V to 5.5 V supply range aligns with the system's available voltage rails and that the SOT-23-6 package fits the PCB layout constraints.

Part Context

The MIC2039 series consists of high-accuracy, high-side MOSFET power distribution switches. These devices are designed to increase system reliability by providing robust protection against overcurrent and thermal conditions. The series offers flexibility through resistor-programmable current limits and multiple package options, catering to diverse power management needs in compact electronic designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Microchip's official cross-reference tools or datasheets for verified alternatives.