1 Features
1• Integrated Single Load Switch
• Small SOT23-6 Package
• Input Voltage Range: 1.4 V to 5.5 V
• Low ON-Resistance
– r ON = 115 mΩ at VIN = 5 V
– rON = 115 mΩ at VIN = 3.3 V
– r ON = 118 mΩ at VIN = 2.5 V
– rON = 129 mΩ at VIN = 1.5 V
• 1.8-A Continuous Switch Current (25°C)
• Low Threshold Control Input
• Controlled Slew-rate
• Under-Voltage Lock Out
• Quick Output Discharge
• Reverse Current Protection

2 Applications
• Portable Industrial Equipment
• Portable Medical Equipment
• Portable Media Players
• Point Of Sales Terminal
• GPS Devices
• Digital Cameras
• Portable Instrumentation
• Smartphones

3 Description
The TPS22929D is a small, low rON load switch with
controlled turn on. The device contains a P-channel MOSFET that can operate over an input voltage
range of 1.4 V to 5.5 V. The switch is controlled by an
on/off input (ON), which is capable of interfacing
directly with low-voltage control signals. The
TPS22929D is active high enable.
The TPS22929D contains a 150-Ω on-chip load
resistor for quick output discharge when the switch is
turned off. The rise time of the device is internally
controlled in order to avoid inrush current.
The TPS22929D device provides circuit breaker
functionality by latching off the power-switch during
reverse voltage situations. An internal reverse voltage comparator disables the power-switch when the
output voltage (VOUT) is driven higher than the input
(VIN) to quickly (10 μs typ) stop the flow of current
towards the input side of the switch. Reverse current
is always active, even when the power-switch is
disabled. Additionally, under-voltage lockout (UVLO)
protection turns the switch off if the input voltage is
too low.
The TPS22929D is available in a small, space-saving
6-pin SOT23 package and is characterized for
operation over the free-air temperature range of
–40°C to 85°C.