MIC2537-2YM

Overview

The MIC2537-2YM is a quad high-side power switch IC designed for USB power distribution. It operates within a supply voltage range of 3 V to 5.5 V and supports an output current of 100 mA per channel with a fixed current limit of 250 mA. The device features a maximum on-state resistance of 425 mΩ (typical) or 700 mΩ (maximum). Key timing parameters include a maximum turn-on time of 510 µs and a maximum idle time of 150 µs. It functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Slew rate controlled outputs to minimize inrush current during switching events
• Integrated status flag providing real-time fault indication
• Fixed current limiting protection against overload conditions
• Over-temperature protection to prevent thermal damage

Applications

• Bus-powered Universal Serial Bus (USB) hubs
• Peripheral power distribution circuits
• Hot-pluggable device interfaces
• Consumer electronics power management

Procurement Notes

Verify the specific suffix 'YM' corresponds to the tube packaging format, as other suffixes may indicate tape-and-reel variants. Confirm RoHS compliance status through official Microchip documentation, as some legacy listings may indicate non-compliance. Ensure the selected package matches the 16-SOIC footprint requirements for your PCB layout. Cross-reference the manufacturer part number directly with the datasheet to avoid confusion with similar series members like the MIC2537-1YM.

Selection Notes

Select this component when independent control of four high-side switches is required for USB applications. The fixed current limit simplifies external protection circuitry compared to programmable alternatives. Consider the 425 mΩ typical on-resistance for power dissipation calculations under full load. The integrated slew rate control reduces electromagnetic interference (EMI) associated with rapid switching. Verify that the 100 mA continuous output current meets the load requirements of all connected peripherals.

Part Context

The MIC2537 series comprises quad high-side power switches optimized for USB power distribution. The MIC2537-2YM variant specifically utilizes a 16-SOIC package. This family integrates protection features such as current limiting and over-temperature shutdown into a compact form factor. It serves as a cost-effective solution for managing power delivery in bus-powered devices where space and component count are critical constraints.

Replacement Considerations

The MIC2537-2BM is listed as a direct substitute, though it may have different compliance statuses or availability. Verify pin compatibility and electrical specifications before substitution. No other public substitutes are confirmed in the provided data.