MIC2537-1BM

Overview

The MIC2537-1BM is a quad power distribution switch manufactured by Microchip Technology, designed for load management in electronic systems. It features four N-channel outputs with a maximum output current of 150mA per channel and an on-resistance of 425 milliohms. The device operates within a load voltage range of 3V to 5.5V and supports a 1:4 input-to-output ratio via a single non-inverted interface. Integrated fault protection includes fixed current limiting and overtemperature shutdown. It is housed in a 16-SOIC package (0.154 inch width) and functions across a temperature range of -40°C to 85°C TA.

Feature Summary

• Integrates four high-side N-channel switches for efficient power distribution
• Includes controlled slew rate functionality to minimize inrush currents
• Provides status flag indication for monitoring operational states
• Features built-in fixed current limit and overtemperature protection

Applications

• USB port power switching and distribution
• Peripheral load driver circuits
• High-side switching for low-voltage digital loads

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm pinout compatibility and thermal characteristics. Confirm RoHS compliance status as historical data indicates variations within the series. Ensure the 16-SOIC package dimensions match the target PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a single control line must manage multiple independent loads requiring current limiting. The 150mA rating suits low-power peripherals rather than high-current applications. Consider the 425 milliohm on-resistance for efficiency calculations. Verify that the 3V to 5.5V operating range aligns with the system's supply voltage constraints.

Part Context

This part belongs to the MIC2537 series of power distribution switches from Microchip Technology. It serves as a specialized solution for managing multiple loads from a single input source. The series is characterized by its integrated protection features and compact packaging, targeting applications where space and component count are critical constraints in power management design.

Replacement Considerations

MIC2537-2YM is listed as a direct substitute by the manufacturer. Verify electrical parameter equivalence and package compatibility before substitution.