1 Features
• Qualified for automotive applications
• AEC-Q100 qualified:
– Device temperature grade 1: –40°C to 125°C
ambient operating temperature range
• Input operating voltage range (VIN): 1.8 V – 5.5 V
• Output current limit (ILIMIT): 0.05 A – 3.5 A (typ)
• Thermal shutdown (TSD)
• ON-resistance (RON):
– RON at VIN = 5 V: 34 mΩ (typ)
– RON at VIN = 3.3 V: 41 mΩ (typ)
• Slow turn-ON timing limits inrush current (typ):
– tON at VIN = 5 V: 832 μs
– tON at VIN = 3.3 V: 695 μs
• Always-ON true reverse current blocking (RCB)
• Fault indication (FLT)
• Quick output discharge (QOD): 150 Ω
• Smart ON pin pulldown (RPD,ON):
– ON ≥ VIH (ION): 50 nA (max)
– ON ≤ VIL (RPD,ON): 500 kΩ (typ)
• Low power consumption:
– ON state (IQ): 40 μA (typ)
– OFF state (ISD): 0.2 μA (typ)
• UL 2367 recognition – file no. E169910
– Certified from ILIM = 66 mA to 2.46 A

2 Applications
• Infotainment and cluster head unit
• Automotive cluster display
• ADAS surround view system ECU
• Body control module and gateway

3 Description
The TPS22950-Q1 is a small, single channel load
switch with robust protection against fault cases with
adjustable output current limiting, reverse current
blocking, and thermal shutdown.
The switch ON state is controlled by a digital input
that is capable of interfacing directly with low-voltage
control signals. When power is first applied, a smart
pulldown is used to keep the ON pin from floating
until system sequencing is complete. After the pin is
deliberately driven high (>VIH), the smart pulldown is
disconnected to prevent unnecessary power loss.
TPS22950-Q1 is available in a standard SOT
package characterized for operation over an ambient
temperature range of –40°C to 125°C.