STMPS2141STR

Overview

The STMPS2141STR is an enhanced single-channel high-side power distribution switch manufactured by STMicroelectronics. It features a 90 mΩ N-channel MOSFET and operates within a supply voltage range of 2.7 V to 5.5 V. The device provides a continuous output current of 500 mA with a fixed current limit threshold of 800 mA. It is housed in a 5-pin SOT-23 surface-mount package. The component includes integrated protection mechanisms such as thermal shutdown, overcurrent limiting, reverse current protection, and undervoltage lockout (UVLO). It supports CMOS and TTL compatible logic inputs.

Feature Summary

• Integrates a low-resistance N-channel MOSFET for efficient power distribution.
• Provides automatic recovery from thermal shutdown conditions upon cooling.
• Includes fault blanking circuitry to prevent false triggering during load switching.
• Offers reverse current protection to maintain system integrity.

Applications

• Power distribution systems requiring heavy capacitive load handling
• Applications prone to short-circuit conditions
• Embedded systems utilizing CMOS or TTL logic interfaces

Procurement Notes

Verify the specific suffix 'STR' corresponds to the SOT-23 tape-and-reel packaging configuration. Confirm that the required operating temperature range aligns with the -40°C to +85°C specification. Ensure the design accommodates the 5-pin footprint dimensions. Cross-reference the latest datasheet for any potential End-of-Life notices or package changes issued by the manufacturer.

Selection Notes

Select this component when a single-channel high-side switch with 500 mA continuous current capability is required. It is suitable for designs needing robust protection against short circuits and thermal overload. Consider the SOT-23 package size constraints and the 2.7 V to 5.5 V input voltage window. This part is appropriate for general-purpose power distribution where compact form factors are prioritized.

Part Context

The STMPS2141STR belongs to the STMPS21xx series of enhanced single-channel power switches. This family is designed for applications involving heavy capacitive loads and potential short circuits. The series shares common architectural features, including high-side switching capabilities and integrated fault protection logic, tailored for reliable power management in consumer and industrial electronics.

Replacement Considerations

Publicly confirmed substitute part numbers for the STMPS2141STR are not available in the provided documentation. Verify compatibility with existing PCB footprints and electrical specifications before considering alternative components from other manufacturers.