TPS22934 Datasheet, PDF (1/25 Pages) Texas Instruments – ULTRA-SMALL LOW-INPUT-VOLTAGE LOW rON LOAD SWITCH WITH HYSTERESIS CONTROL INPUT

TPS22934
www.ti.com
SLVSAD4 – AUGUST 2010
ULTRA-SMALL, LOW-INPUT-VOLTAGE, LOW r_ON LOAD SWITCH
WITH HYSTERESIS CONTROL INPUT
Check for Samples: TPS22934
FEATURES
1
• Integrated Single-Channel Load Switch
• Ultra Small CSP-4 package
0.9 mm x 0.9 mm, 0.5-mm Pitch, 0.5-mm Thick
• Input Voltage: 1.5 V to 3.6 V
• Ultra-Low ON Resistance
– r_DS(ON) = 63 mΩ at V_IN = 3.6 V
– r_DS(ON) = 69 mΩ at V_IN = 2.5 V
– r_DS(ON) = 78 mΩ at V_IN = 1.8 V
– r_DS(ON) = 87 mΩ at V_IN = 1.5 V
• 1-A Maximum Continuous Switch Current
• Integrated Hysteresis Enable Input (ON Pin)
Allows Easy Power Rail Sequencing
• Controlled Slew Rate Option: 26 µs at 3.6 V
• Quick Output Discharge Transistor
• ESD Performance Tested Per JESD 22
– 3000-V Human-Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
APPLICATIONS
• Battery Powered Equipment
• Portable Industrial Equipment
• Portable Medical Equipment
• Portable Media Players
• Point Of Sales Terminal
• GPS Devices
• Digital Cameras
• Portable Instrumentation
• Smartphones
DESCRIPTION
The TPS22934 is a small, ultra low ON-resistance
(r_ON) load switch with controlled turn on. The devices
contain a P-channel MOSFETs that can operate over
an input voltage range of 1.5 V to 3.6 V.
The switch is controlled by an on/off input (ON),
which has built in hysteresis (V_TH+(typ) = 2.35 V)
allowing an easy use of TPS22934 in power-rail
sequencing applications.
In TPS22934 a 35-Ω on-chip load resistor is added
for output quick discharge when switch is turned off.
In TPS22934, the rise time of the device is internally
controlled in order to avoid inrush current. TPS22934
feature a typical rise time of 26 µs with a 3.6-V input.
The TPS22934 is available in an ultra-small
space-saving 4-pin CSP package and is
characterized for operation over the free-air
temperature range of –40ºC to 85ºC.
TYPICAL APPLICATION
1.8-V Power Rail Sequencing
TPS22934
r_ON (TYP)
AT 3.6 V
63 mΩ
FEATURE LIST
SLEW RATE
(TYP)
AT 3.6 V
QUICK
OUTPUT
DISCHARGE
26 µs
Yes
MAXIMUM
OUTPUT
CURRENT
1A
ENABLE
Hysteresis Input
V_TH+(typ) = 2.35 V
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated