Datasheet

Control
Logic
VIN
ON
VOUT
GND
TPS22913 only
QOD
Driver
Reverse
Current
Protection
TPS22910A , TPS22912C , TPS22913B , TPS22913C
www.ti.com SLVSB49D –NOVEMBER 2011–REVISED MAY 2014
10 Detailed Description
10.1 Overview
This family of devices are single channel, 2-A load switches in ultra-small, space saving 4-pin WCSP package.
These devices implement a low resistance P-channel MOSFET with a controlled rise time for applications that
need to limit the inrush current.
These devices are designed to have very low leakage current during off state. This prevents downstream circuits
from pulling high standby current from the supply. Integrated control logic, driver, power supply, and output
discharge FET eliminates the need for additional external components, which reduces solution size and BOM
count.
10.2 Functional Block Diagram
10.3 Feature Description
10.3.1 On/Off Control
The ON pin controls the state of the switch. The ON pin is compatible with standard GPIO logic threshold. It can
be used with any microcontroller with 1.2-V, 1.8-V, 2.5-V, 3.3-V, or 5.5-V GPIO.
10.3.2 Under-Voltage Lockout
Under-voltage lockout protection turns off the switch if the input voltage drops below the under-voltage lockout
threshold (UVLO). With the ON pin active, the input voltage rising above the under-voltage lockout threshold will
cause a controlled turn-on of the switch to limit current over-shoot.
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Product Folder Links: TPS22910A TPS22912C TPS22913B TPS22913C