TPS22932B Datasheet, PDF (1/20 Pages) Texas Instruments – LOW INPUT VOLTAGE ULTRA-LOW rON LOAD SWITCH WITH CONFIGURABLE ENABLE LOGIC AND CONTROLLED SLEW-RATE

TPS22932B
www.ti.com
SLVS802A – AUGUST 2009 – REVISED NOVEMBER 2009
LOW INPUT VOLTAGE, ULTRA-LOW r_ON LOAD SWITCH
WITH CONFIGURABLE ENABLE LOGIC AND CONTROLLED SLEW-RATE
Check for Samples: TPS22932B
FEATURES
1
• Input Voltage: 1.1 V to 3.6 V
• Ultra-Low ON Resistance
– r_ON = 55 mΩ at V_IN = 3.6 V
– r_ON = 65 mΩ at V_IN = 2.5 V
– r_ON = 75 mΩ at V_IN = 1.8 V
– r_ON = 115 mΩ at V_IN = 1.2 V
• 500-mA Maximum Continuous Switch Current
• Quiescent Current < 1 μA
• Shutdown Current < 1 μA
• Low Control Threshold Allows Use of
1.2-V/1.8-V/2.5-V/3.3-V Logic
• Configurable Enable Logic
• Controlled Slew Rate to Avoid Inrush
Currents: 165 μs at 1.8 V
• ESD Performance Tested Per JESD 22
– 2000-V Human-Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
• Six-Terminal Wafer-Chip-Scale Package
(WCSP)
– 0.8 mm × 1.2 mm,
0.4-mm Pitch, 0.5-mm Height
APPLICATIONS
• PDAs
• Cell Phones
• GPS Devices
• MP3 Players
• Digital Cameras
• Peripheral Ports
• Portable Instrumentation
DESCRIPTION
TPS22932B is a low r_ON load switch with controlled
turn on. It contains an ultra-low r_ON P-channel
MOSFET that can operate over an input voltage
range of 1.1 V to 3.6 V.
The switch is controlled by eight patterns of 3-bit
input. The user can choose the logic functions MUX,
AND, OR, NAND, NOR, inverter, and non-inverter. All
inputs can be connected to V_IN or GND. The control
pins can be connected to low voltage GPIOs allowing
it to be controlled by whatever 1.2-V, 1.8-V, 2.5-V, or
3.3-V logic signals while keeping extremely low
quiescent current.
A 120-Ω on-chip load resistor is available for output
quick discharge when the switch is turned off. The
rise time (slew rate) of the device is internally
controlled to avoid inrush current: the rise time of
TPS22932B is 165 μs.
TPS22932B is available in a space-saving 6-terminal
WCSP (YFP with 0.4-mm pitch). The device is
characterized for operation over the free-air
temperature range of –40°C to 85°C.
DEVICE
TPS22932B
r_ON AT 1.8 V
(TYP)
75 mΩ
SLEW RATE
(TYP AT 3.3 V)
165 μs
QUICK OUTPUT
DISCHARGE ⁽¹⁾
Yes
MAX OUTPUT
CURRENT
500 mA
ENABLE
Active high
(1) This feature discharges the output of the switch to ground through a 120-Ω resistor, preventing the output from floating.
YFP PACKAGE
C
C
B
B
A
A
21
12
Laser Marking View Bump View
Table 1. TERMINAL ASSIGNMENTS
C
ON2
B
ON1
A
V_IN
2
ON3
GND
V_OUT
1
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 © 2009, Texas Instruments Incorporated