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TPS22912AYZVR датащи(PDF) 1 Page - Texas Instruments

номер детали TPS22912AYZVR
подробное описание детали  Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

TPS22912AYZVR датащи(HTML) 1 Page - Texas Instruments

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Power
Supply
ON
OFF
TPS22912
VIN
VOUT
RL
CL
GND
ON
GND
CIN
TPS22912
www.ti.com
SLVSB78 – APRIL 2012
Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
Check for Samples: TPS22912
1
FEATURES
DESCRIPTION
The TPS22912 is a small, low rON load switch with
Integrated Single Load Switch
controlled turn-on and contains a P-channel MOSFET
Ultra Small CSP-4 Package 0.9mm × 0.9mm,
that can operate over an input voltage range of 1.4 V
0.5mm Pitch
to 5.5 V. The switch is controlled by a high input
Input Voltage Range: 1.4-V to 5.5-V
(ON), which is capable of interfacing directly with low-
voltage control signals.
Low ON-Resistance
The slew rate of the device is internally controlled in
rON = 60-mΩ at VIN = 5-V
order to avoid inrush current. The TPS22912 family
rON = 61-mΩ at VIN = 3.3-V
has various rise time options and is active high
rON = 74-mΩ at VIN = 1.8-V
enable. (see Table 1).
rON = 84-mΩ at VIN = 1.5-V
The TPS22912 provides circuit breaker functionality
2-A Maximum Continuous Switch Current
by latching off the power switch during reverse
voltage
situations.
An
internal
reverse
voltage
Low Threshold Control Input
comparator disables the power switch when the
Controlled Slew-rate Options
output voltage (VOUT) is higher than the input (VIN).
Under-Voltage Lock Out
This process quickly (10µs typical) stops the flow of
Reverse Current Protection
current towards the input side of the switch. Reverse
current protection is always active, even when the
device is disabled. Additionally, under-voltage lockout
APPLICATIONS
(UVLO) protection turns the switch off if the input
Portable Industrial / Medical Equipment
voltage is too low.
Portable Media Players
The TPS22912 is available in a ultra-small, space-
Point of Sales Terminals
saving 4-pin CSP package and is characterized for
GPS Navigation Devices
operation over the free-air temperature range of
–40°C to 85°C.
Digital Cameras
Portable Instrumentation
TYPICAL APPLICATION
Smartphones / Wireless Handsets
Table 1. Feature List
RISE TIME at 3.3V
QUICK OUTPUT
MAXIMUM OUTPUT
DEVICE
rON (typ) at 3.3 V
ENABLE
(typ)
DISCHARGE(1)
CURRENT
TPS22912A(2)
61 m
Ω
1 µs
No
2-A
Active High
TPS22912B(2)
61 m
Ω
100 µs
No
2-A
Active High
TPS22912C
61 m
Ω
1000 µs
No
2-A
Active High
TPS22912D(2)
61 m
Ω
4500 µs
No
2-A
Active High
(1)
This feature discharges the output of the switch to ground through a 150-
Ω resistor, preventing the output from floating.
(2)
Contact local sales/distributor or factory for availability.
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.
Copyright © 2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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