1 Features
• Input operating voltage range (VIN): 1.8 V–5.5 V
• Output current limit (ILIMIT): 0.05 A–3.5 A (typ.)
• TPS22950: Auto-retry current limit response
• TPS22950L: Latch off current limit response
• 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: 800 μs
– tON at VIN = 3.3 V: 550 μs
• Always-ON reverse current blocking (TPS22950)
• 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 Application
• Personal electronics
• Tablets
• Notebooks
• Game consoles
• Accessories

3 Description
The TPS22950x 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.
The TPS22950/C responds to overcurrent events with
auto-retry behavior, while the TPS22950L uses a
debounce time and latch off behavior.
TPS22950x is available in a standard WCSP package
and leaded SOT package characterized for operation
over an ambient temperature range of –40°C to
125°C.