TPS22918 Datasheet, PDF (1/27 Pages) Texas Instruments – 52Ohm On-Resistance Load Switch

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TPS22918
SLVSD76A – FEBRUARY 2016 – REVISED MARCH 2016
TPS22918 5.5-V, 2-A, 52-mΩ On-Resistance Load Switch
1 Features
•1 Integrated Single Channel Load Switch
• Ambient Operating Temperature: –40°C to
+105°C
• Input Voltage Range: 1 V to 5.5 V
• On-Resistance (R_ON)
– R_ON = 52 mΩ (typical) at V_IN = 5 V
– R_ON = 53 mΩ (typical) at V_IN = 3.3 V
• 2-A Maximum Continuous Switch Current
• Low Quiescent Current
– 8.3 µA (typical) at V_IN = 3.3 V
• Low-Control Input-Threshold Enables Use of 1 V
or Higher GPIO
• Adjustable Quick-Output Discharge (QOD)
• Configurable Rise Time With CT Pin
• Small SOT23-6 Package (DBV)
– 2.90 mm × 2.80 mm, 0.95 mm Pitch,
1.45 mm Height (with leads)
• ESD Performance Tested per JESD 22
– ±2-kV HBM and ±1-kV CDM
2 Applications
• Industrial Systems
• Set Top Box
• Blood Glucose Meters
• Electronic Point of Sale
Simplified Schematic
Power
VIN
VOUT
Supply
C_IN
R_EXT
GND
QOD
R_L
C_L
ON
ON
TPS22918
CT
OFF
3 Description
The TPS22918 is a single-channel load switch with
configurable rise time and configurable quick output
discharge. The device contains an N-channel
MOSFET that can operate over an input voltage
range of 1 V to 5.5 V and can support a maximum
continuous current of 2 A. The switch is controlled by
an on and off input, which is capable of interfacing
directly with low-voltage control signals.
The configurable rise time of the device greatly
reduces inrush current caused by large bulk load
capacitances, thereby reducing or eliminating power
supply droop. The TPS22918 features a configurable
quick output discharge (QOD) pin, which controls the
fall time of the device to allow design flexibility for
power down and sequencing.
The TPS22918 is available in a small, leaded SOT-23
package (DBV) which allows visual inspection of
solder joints. The device is characterized for
operation over the free-air temperature range of
–40°C to +105°C.
Device Information ⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS22918
SOT-23 (6)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
R_ON vs V_IN (I_OUT = –200 mA)
Typical Values
100
-40qC
90
25qC
85qC
105qC
80
70
60
50
40
30
1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
D001
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.