TPS22913B Datasheet, PDF (1/22 Pages) Texas Instruments – Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on

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TPS22913
SLVSB20 – SEPTEMBER 2011
Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
Check for Samples: TPS22913
FEATURES
1
• Integrated Single Load Switch
• Ultra Small CSP-4 Package 0.9mm × 0.9mm,
0.5mm Pitch
• Input Voltage Range: 1.4-V to 5.5-V
• Low ON-Resistance
– r_ON = 60-mΩ at VIN = 5-V
– r_ON = 61-mΩ at VIN = 3.3-V
– r_ON = 74-mΩ at VIN = 1.8-V
– r_ON = 84-mΩ at VIN = 1.5-V
• 2-A Maximum Continuous Switch Current
• Low Threshold Control Input
• Controlled Slew-rate Options
• Under-Voltage Lock Out
• Quick Output Discharge Transistor
• Reverse Current Protection
APPLICATIONS
• Portable Industrial Equipment
• Portable Medical Equipment
• Portable Media Players
• Point Of Sales Terminal
• GPS Devices
• Digital Cameras
• Portable Instrumentation
• Smartphones
DESCRIPTION
The TPS22913 is a small, low r_ON load switch with
controlled turn on. The device contains a P-channel
MOSFET that can operate over an input voltage
range of 1.4 V to 5.5 V. The switch is controlled by an
on/off input (ON), which is capable of interfacing
directly with low-voltage control signals. The
TPS22913 is active high enable.
The TPS22913 contains a 150-Ω on-chip load
resistor for quick output discharge when the switch is
turned off. The rise time of the device is internally
controlled in order to avoid inrush current. The
TPS22913 family has various slew rate options (see
Table 1).
The TPS22913 device provides circuit breaker
functionality by latching off the power-switch during
reverse voltage situations. An internal reverse voltage
comparator disables the power-switch when the
output voltage is driven higher than the input (V_IN) to
quickly (10µs typ) stop the flow of current towards the
input side of the switch. The reverse current
protection is active when the power switch is enabled
(ON). Additionally, during under-voltage lockout
(UVLO), or when the switch is disabled, no reverse
current can flow as the switch body diode is not
engaged.
The TPS22913 is available in an ultra-small,
space-saving 4-pin CSP package and is
characterized for operation over the free-air
temperature range of –40°C to 85°C.
TYPICAL APPLICATION
Power
Supply
C_IN
V_IN
ON _ON
OFF
V_OUT
TPS22913
GND
C_L
R_L
GND
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 © 2011, Texas Instruments Incorporated