TPS22953-Q1中文资料德州仪器数据手册PDF规格书

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.