NX5P2553

NX5P2553 Precision adjustable current-limited power switch Rev. 1 — 6 July 2015 Product data sheet 1. General description The NX5P2553 is a precision adjustable current-limited power switch. The device includes undervoltage lockout, overtemperature, and reverse bias protection circuits designed to isolate the switch terminals when a fault condition occurs. It also has an overcurrent protection circuit to limit the output current. The device features two power switch terminals, one input (VIN), and one output (VOUT). It also consists of a current limit input (ILIM) for defining the overcurrent limit, an open-drain fault output (FAULT) to indicate when a fault condition has occurred, and an enable input (EN) to control the state of the switch. The overcurrent limit threshold can be programmed between 85 mA and 1.8 A using an external resistor between the ILIM and GND pins. The device has built-in soft-start. This feature controls the output rise time by minimizing current surges when the switch is enabled. Designed for operation from 2.5 V to 5.5 V, it is used in power domain isolation applications to protect from out of range operation. The enable input includes integrated logic level translation making the device compatible with lower voltage processors and controllers. 2. Features and benefits  Wide supply voltage range from 2.5 V to 5.5 V  ISW maximum 1.5 A continuous current  6 % current-limit accuracy at 1.8 A (typical)  Meets USB current-limiting requirements  ...