STMPS2151MTR

Overview

The STMPS2151MTR is a single-channel high-side power distribution switch manufactured by STMicroelectronics. It incorporates a 90 mΩ N-channel MOSFET controlled by a logic enable input, operating within a voltage range of 2.7 V to 5.5 V. The device supports a continuous output current of 500 mA with a current limit threshold of 800 mA. It features integrated thermal protection and short-circuit protection, switching to constant current mode during faults. The component operates across an ambient temperature range of -40 °C to +85 °C and utilizes an SOIC-8 surface-mount package.

Feature Summary

• Integrates a 90 mΩ high-side N-channel MOSFET for efficient power distribution
• Provides automatic thermal shutdown and short-circuit protection with overcurrent logic output
• Features undervoltage lockout (UVLO) and reverse current protection mechanisms

Applications

• Power management systems requiring heavy capacitive load handling
• Applications prone to short-circuit conditions
• Industrial automation control circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure the correct tape and reel configuration matches the production requirements. Confirm that the SOIC-8 package dimensions align with the PCB footprint design. Cross-reference the RoHS compliance status and lead time specifications directly with authorized distributors or the manufacturer before finalizing procurement orders.

Selection Notes

Select this component when a single-channel high-side switch with 500 mA continuous current capability is required. Ensure the application voltage remains within the 2.7 V to 5.5 V operational range. Consider the 90 mΩ on-resistance for efficiency calculations and verify that the SOIC-8 package fits the available board space. This device is suitable for environments where thermal protection and fault blanking are necessary.

Part Context

The STMPS2151MTR belongs to the STMPS21x1 family of enhanced single-channel power switches designed by STMicroelectronics. This series is engineered for robust performance in demanding applications, offering integrated protection features such as thermal shutdown and short-circuit limiting. The MTR suffix indicates the standard reel packaging format used for automated surface-mount assembly processes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.