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.
●For all available packages, see the orderable addendum at the end of the datasheet.
● 2.5 to 6.5 V Operating Range
● Adjustable 1.2 to 4.7 A I(LIMIT) (±4.4% at 4.7 A)
● 3.5 µs Short Circuit Shutoff (Typical)
● 13-mΩ High-Side MOSFET
● 2-µA Maximum Standby Supply Current
● Built-in Soft-Start
● 8 kV / 15 kV System-Level ESD Capable
● UL 2367 Recognition Pending
