MIC2003-0.5YML

Overview

The MIC2003-0.5YML is a single-channel P-channel power switch manufactured by Micrel, now part of Microchip Technology. It operates within a load voltage range of 2.5V to 5.5V and supports a maximum output current of 500mA. The device features an on-resistance of 70mΩ and utilizes a 6-pin MLF package measuring 2x2mm. It includes fixed current limiting and overtemperature fault protection. The component functions with a non-inverting open/switch interface and operates across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates fixed current limit and overtemperature protection for circuit safeguarding
• Utilizes a compact 6-pin MLF surface-mount package for space-constrained designs
• Features low on-resistance for efficient power delivery in portable applications

Applications

• Battery-powered portable electronics
• Peripheral power switching in computing systems
• Load management in mobile devices

Procurement Notes

Verify the manufacturer designation as Microchip Technology due to the acquisition of Micrel. Confirm the specific suffix YML corresponds to the 6-DFN (2x2) lead-free package. Ensure compatibility with RoHS3 standards if required by your manufacturing process. Cross-reference the datasheet for the MIC20xx family to validate pinout and electrical characteristics against your schematic requirements before finalizing procurement.

Selection Notes

Select this component when a single high-side switch is required for loads up to 500mA within a 5.5V system. The 70mΩ on-resistance minimizes power loss compared to higher resistance alternatives. Consider the 6-pin MLF footprint for assembly constraints. Verify that the non-inverting control logic aligns with the system's microcontroller or switch signals. Evaluate the fixed current limit threshold to ensure it protects the downstream load without nuisance tripping during startup transients.

Part Context

The MIC2003 belongs to the MIC20xx family of power switches designed for low-voltage applications. This series provides integrated protection features typically found in more complex discrete solutions. The transition from Micrel to Microchip Technology maintains the product lineage under the Microchip portfolio. These devices are commonly used in USB hubs, peripheral interfaces, and battery management systems where compact size and reliable switching are critical.

Replacement Considerations

Check for updated ordering codes under the Microchip Technology brand name. Verify package dimensions and pinout compatibility if substituting with other single-channel switches in the MIC20xx series.