TPS22918-Q1 5.5V, 2A, 52mΩ Automotive High-Side Load Switch with Adjustable Rise Time & Quick Output Discharge |

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5.5V, 2A, 52mΩ Automotive High-Side Load Switch with Adjustable Rise Time & Quick Output Discharge



The TPS22918-Q1 is a single-channel load switch with both 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 reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. The TPS22918-Q1 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-Q1 is available in a small, leaded SOT-23 package (DBV) which allows to visually inspect solder joints. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.


  • AEC-Q100 Qualified
  • Integrated Single-Channel Load Switch
  • Qualified for Automotive Applications:
    • Device Temperature Grade 2: –40°C to +105°C Ambient Operating Temperature Range
  • Input Voltage Range: 1 V to 5.5 V
  • Low On-Resistance (RON)
    • RON = 52 mΩ (typical) at VIN = 5 V
    • RON = 53 mΩ (typical) at VIN = 3.3 V
  • 2-A Maximum Continuous Switch Current
  • Low Quiescent Current
    • 8.3 µA (typical) at VIN = 3.3 V
  • Low-Control Input-Threshold Enables Use of 1 V or Higher GPIO
  • Configurable Quick-Output Discharge (QOD)
  • Configurable Rise Time With CT Pin
  • Small SOT23-6 Package (DBV)
    • 2.9 mm × 2.8 mm, 0.95-mm Pitch, 1.45-mm Height (with leads)
  • ESD Performance Tested per AEC Q100
    • ±2-kV HBM and ±750-V CDM

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Part number Order Number of channels (#) Vin (Min) (V) Vin (Max) (V) Imax (A) Ron (Typ) (mOhm) Shutdown current (ISD) (Typ) (uA) Quiescent current (Iq) (Typ) (uA) Soft start Rise time (Typ) (us) Features Operating temperature range (C)
TPS22918-Q1 Order now 1     1     5.5     2     52     0.5     8.7     Adjustable Rise Time     135     Quick Output Discharge     -40 to 105    
TPS22810-Q1 Order now 1     2.7     18     2     79     0.5     62     Adjustable Rise Time     115     Quick Output Discharge
Thermal Shutdown
Under Voltage Lock Out    
-40 to 105    
TPS22966-Q1 Order now 2     0.8     5.5     4     16     0.5     80     Adjustable Rise Time     124     Quick Output Discharge
-40 to 105