Texas Instruments TPS2556 Precision Adjustable Current-Limited Power-Distribution Switches TPS2556DRBT

The TPS2556DRBT is a precision adjustable current-limited power-distribution switch designed for applications requiring reliable current limiting and protection against overcurrent and overtemperature conditions. It supports an adjustable current limit ranging from 500 mA to 5 A, with a typical accuracy of ±6.5% at 4.5 A. The device features a fast overcurrent response time of 3.5 µs and incorporates a built-in soft start mechanism to minimize current surges during power-up. Operating within a voltage range of 2.5 V to 6.5 V, the TPS2556DRBT has a low standby supply current of 2 µA, making it suitable for power-sensitive applications. The device is equipped with a high-side MOSFET with a low on-resistance of 22 mΩ, contributing to efficient power distribution. It is also designed to meet USB current-limiting requirements and is capable of withstanding system-level ESD ratings of 15 kV and 8 kV. The TPS2556DRBT is packaged in an 8-pin SON configuration, making it compact for integration into various electronic designs.