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 (>V_IH), 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.

• 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

• Number of channels (#)
• 1
• Vin (Min) (V)
• 1.8
• Vin (Max) (V)
• 5.5
• Imax (A)
• 3.5
• Ron (Typ) (mOhm)
• 34
• Shutdown current (ISD) (Typ) (uA)
• 0.2
• Quiescent current (Iq) (Typ) (uA)
• 40
• Soft start
• Fixed Rise Time
• Rise time (Typ) (us)
• 402
• Current limit type
• Adjustable
• Features
• Quick output discharge, Reverse current protection, Short circuit protection, Thermal shutdown
• Operating temperature range (C)
• -40 to 125

TPS22950-Q1的完整型号有：PTPS22950CQDDCRQ1，以下是这些产品的关键参数及官网采购报价：

PTPS22950CQDDCRQ1，工作温度：-40 to 125，封装：SOT-23-THIN (DDC)-6，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：-，引脚镀层/焊球材料：-，TI官网PTPS22950CQDDCRQ1的批量USD价格：0.248（1000+）

TPS22950Q1EVM — 适用于 TPS22950-Q1 负载开关的评估模块

TPS22950-Q1 评估模块 (EVM) 是经过组装和测试的电路，用于评估 TPS22950-Q1 负载开关。TPS22950Q1EVM 支持用户在不同的负载条件下（0A 至 3A）向 TPS22950-Q1 器件施加不同的输入电压（1.8V 至 5.5V）。

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