1 Features

• Integrated Single Channel Load Switch
• Ambient Operating Temperature: –40°C to +105°C
• Input Voltage Range: 1 V to 5.5 V
• On-Resistance (R_ON)
  • R_ON = 52 mΩ (typical) at V_IN = 5 V
  • R_ON = 53 mΩ (typical) at V_IN = 3.3 V
• 2-A Maximum Continuous Switch Current
• Low Quiescent Current
  • 8.3 µA (typical) at V_IN = 3.3 V
• Low-Control Input-Threshold Enables Use of 1 V or Higher GPIO
• Adjustable Quick-Output Discharge (QOD)
• Configurable Rise Time With CT Pin
• Small SOT23-6 Package (DBV)
  • 2.90-mm × 2.80-mm, 0.95-mm Pitch,
    1.45 mm Height (with leads)
• ESD Performance Tested per JESD 22
  • ±2-kV HBM and ±1-kV CDM

2 Applications

• Industrial Systems
• Set Top Box
• Blood Glucose Meters
• Electronic Point of Sale

3 Description

The TPS22918 is a single-channel load switch with configurable rise time and configurable quick output discharge. The device contains an N-channel MOSFET that can operate over an input voltage range of 1 V to 5.5 V and can support a maximum continuous current of 2 A. The switch is controlled by an on and off input, which is capable of interfacing directly with low-voltage control signals.

The configurable rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. The TPS22918 features a configurable quick output discharge (QOD) pin, which controls the fall time of the device to allow design flexibility for power down and sequencing.

The TPS22918 is available in a small, leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.

1. For all available packages, see the orderable addendum at the end of the datasheet.

Simplified Schematic

On-Resistance vs Input Voltage
Typical Values

I_OUT = –200 mA