Product Overview: Texas Instruments TPS2552DBVR-1 Precision Adjustable Current-Limited Power-Distribution Switch

The TPS2552DBVR-1 from Texas Instruments is a state-of-the-art power switch designed for USB and other hot-swap applications. This device is part of the precision adjustable current-limited power-distribution switches family that offers the necessary protection for sensitive electronics. Its main purpose is to limit the output current to a safe level by switching off the output when the load exceeds the current limit threshold.

Constructed with a 2.5V to 6.5V operating range, the TPS2552DBVR-1 is ideal for a variety of systems that require precise current regulation and distribution. This includes portable electronics, where power efficiency and battery life are of utmost importance. The device provides an adjustable current limit between 75 mA to 1.2 A via an external resistor, which allows designers to tailor the current limit to the needs of their specific applications.

The TPS2552DBVR-1 features an auto-retry after fault, a fast transient response, and under-voltage lockout. It also has a fault report (FAULT) to indicate overcurrent or overtemperature conditions. The power switch's response time to an overcurrent condition is fast, typically less than 2 µs, which helps to protect the device and the USB port from potential damage.

Encased in a small SOT-23 package, the TPS2552DBVR-1 saves precious board space and is suitable for compact designs. Additionally, the device is fully characterized for operation over the free-air temperature range of –40°C to 85°C, ensuring reliable performance across a wide range of environmental conditions.

Key features of the TPS2552DBVR-1 include:

• Precision current limiting set by an external resistor
• Adjustable current limit range from 75 mA to 1.2 A
• Operating voltage range from 2.5 V to 6.5 V
• Fast response time in overcurrent conditions
• Auto-retry feature
• Under-voltage lockout (UVLO)
• Fault reporting
• Thermal shutdown protection
• Compact SOT-23 package

The TPS2552DBVR-1 is a robust solution for USB power supply and distribution, ensuring devices operate within their safe current limits while providing flexibility and reliability for designers and engineers.