STMPS2272TTR

Overview

The STMPS2272TTR is an enhanced dual-channel power distribution switch designed for systems with heavy capacitive loads and short-circuits. It incorporates two independent 100 mΩ high-side MOSFET switches controlled by logic enable inputs. The device supports a continuous current of 500 mA or 1000 mA per channel, depending on the specific variant within the family. Operating voltage ranges from 2.7 V to 5.5 V with CMOS and TTL compatible inputs. Key electrical parameters include a typical rise time of 2.5 ms, maximum standby supply current of 13 μA, and ambient temperature operation from -40 °C to 85 °C.

Feature Summary

• Integrated thermal protection circuit that automatically shuts off the switch to prevent damage during continuous overloads and recovers upon cooling.
• Independent short-circuit protection for each channel that limits output current to a safe level and signals fault via overcurrent logic output.
• Internal circuitry ensures the switch remains off until valid input voltage is present, preventing unintended activation.
• Reverse current protection capability prevents backflow through the MOSFET body diode when the switch is disabled.

Applications

• Power distribution systems requiring multiple switches in a single package
• Applications encountering heavy capacitive loads
• Systems prone to short-circuit conditions

Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm the specific current rating (500 mA vs 1000 mA) associated with the STMPS2272 series. Ensure the ordering code matches the required tape and reel packaging specifications. Confirm that the component grade and environmental compliance meet the project requirements before finalizing procurement orders.

Selection Notes

Select this component for applications needing dual high-side switching with integrated protection features. Consider the 100 mΩ on-resistance for efficiency and the 2.7 V to 5.5 V operating range for compatibility with standard logic levels. Evaluate the need for independent fault signaling and automatic thermal recovery in your system design.

Part Context

The STMPS2272 belongs to the STMPS22xx family of power distribution switches from STMicroelectronics. This series includes variants like the STMPS2242, 2252, and 2262, all sharing similar architectural features but potentially differing in current ratings or specific protection thresholds. The TTR suffix typically indicates a tape and reel packaging format suitable for automated surface-mount assembly.

Replacement Considerations

Direct replacements within the same family include STMPS2242, STMPS2252, and STMPS2262. Verify pinout compatibility and specific current limit thresholds when substituting, as these may vary between models. Cross-reference with the official replacement guide for any discontinued variants.