TPS22954 Datasheet, PDF (1/46 Pages) Texas Instruments – 5.7 V, 5 A, 14 m(ohm) On-Resistance Load Switch

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TPS22954, TPS22953
SLVSCT5C – MARCH 2015 – REVISED JULY 2015
TPS2295x 5.7 V, 5 A, 14 mΩ On-Resistance Load Switch
1 Features
•1 Integrated Single Channel Load Switch
• Input Voltage Range: 0.7 V to 5.7 V
• R_ON Resistance
– R_ON = 14 mΩ at V_IN = 5 V (V_BIAS = 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/Industrial PC
• Ultrabook™/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/off input (EN),
which is capable of interfacing directly with low-
voltage 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, space-
saving 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.
PART NUMBER
TPS2295x
Device Information⁽¹⁾
PACKAGE (PIN) BODY SIZE (NOM)
WSON (10)
2.00 mm x 2.00 mm
WSON (10)
2.00 mm x 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
Power
Supply
CIN
REN1
REN2
TPS22953/54
IN
OUT
IN
BIAS
EN
GND
PAD
OUT
RSNS1
SNS
RSNS2
PG
CL
RL
Rpullup
PG
CT
CT
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.