Manufacturer Texas Instruments
Manufacturer Part Number TPS2551QDBVRQ1
Description USB Switch ICs Adj Crnt-Limited Pwr Distribution Sw
Stock Code W000342
Download Technical Datasheet

The TPS2551QDBVRQ1 is a Power Distribution Switch intended for applications in which heavy capacitive loads and short circuits are likely to be encountered. The current-limit threshold is user adjustable between 100mA and 1.1A via an external resistor. The power-switch rise and fall times are controlled to minimize current surges during switching. The device limits the output current to a desired level by switching into a constant-current mode when the output load exceeds the current-limit threshold or a short is present. An internal reverse-voltage detection comparator disables the power-switch in the event that the output voltage is driven higher than the input to protect devices on the input side of the switch. The FAULT logic output asserts low during both overcurrent and reverse-voltage conditions.

  • 2µS Typical fast overcurrent response
  • Reverse input-output voltage protection
  • Deglitched fault report
  • 1µA Maximum standby supply current

Number of Pins




Number of Outputs


Operating Temperature

-40.0 °C (min)


Tape & Reel (TR)

Mounting Style

Surface Mount

Lead-Free Status

Lead Free

Lifecycle Status




Input Voltage (DC)

6.50 V