1 Features
1• Integrated Single Channel Load Switch
• Input Voltage Range: 0.7 V to 5.7 V
• RON Resistance
– RON = 14 mΩ at VIN = 5 V (VBIAS = 5 V)
• 5-A Maximum Continuous Switch Current
• Adjustable Undervoltage Lockout Threshold
(UVLO)
• Adjustable Voltage Supervisor with
Power Good (PG) Indicator
• Adjustable Output Slew Rate Control
• Enhanced Quick Output Discharge Remains
Active after Power is Removed (TPS22954 Only)
– 15 Ω (Typ) Discharges 100 μF Within 10 ms
• Reverse Current Blocking when Disabled
(TPS22953 Only)
• Automatic Restart after Supervisor Fault Detection
When Enabled
• Thermal Shutdown
• Low Quiescent Current ≤ 50 μA
• SON 10-pin Package with Thermal Pad
• ESD Performance Tested Per JESD 22
– 2-kV HBM and 750-V CDM

2 Applications
• Solid State Drives
• Embedded and Industrial PC
• Ultrabook™ and Notebooks
• Desktops
• Servers
• Telecom Systems

3 Description
The TPS22953/54 are small, single channel load
switches with controlled turn on. The devices contain
a N-channel MOSFET that can operate over an input
voltage range of 0.7 V to 5.7 V and can support a
maximum continuous current of 5 A.
The integrated adjustable undervoltage lockout
(UVLO) and adjustable power good (PG) threshold
provides voltage monitoring as well as robust power
sequencing. The adjustable rise time control of the
device greatly reduces inrush current for a wide
variety of bulk load capacitances, thereby reducing or
eliminating power supply droop. The switch is
independently controlled by an on and off input (EN),
which is capable of interfacing directly with lowvoltage
control signals. A 15-Ω on-chip load is
integrated into the device for a quick discharge of the
output when switch is disabled. The enhanced Quick
Output Discharge (QOD) remains active for short time
after power is removed from the device to finish
discharging the output.
The TPS22953/54 are available in small, spacesaving
10-SON packages with integrated thermal pad
allowing for high power dissipation. The device is
characterized for operation over the free-air
temperature range of –40°C to +105°C.