1.2-4.7A adjustable ILIMIT, 2.5-6.5V, 13mΩ USB power switch, active-high

The TPS2559 power-distribution switch is

intended for applications where a low resistance, precision current limit switch is required

or heavy capacitive loads are encountered. The TPS2559 provides up to 5.5 A of continuous

load current with a precise current limit set by a single resistor to ground. Output current

is maintained at a safe level by switching into a constant-current mode when the output load

exceeds the current-limit threshold. During overload events the output current is limited to

the level set by R(ILIM). If a persistent overload occurs, the device goes into

thermal shutoff to prevent damage to the TPS2559.

The power-switch rise and fall times are

controlled to minimize current surges during turn on or off. The FAULT

logic output asserts low during overcurrent or overtemperature conditions.