7 Detailed Description

7.1 Overview

The TPS22998 device is a single-channel load switch with a 4-mΩ power MOSFET designed to operate up to

10 A. The voltage range is 0.2 V to 5.5 V. A configurable rise time provides flexibility for power sequencing and

minimizes inrush current for high capacitance loads.

An enable pin (ON) controls the switch, which is capable of interfacing directly with low voltage GPIO signals.

The TPS22998 device uses quick output discharge when switch turns off, pulling the output down to 0 V through

an internal 50-Ω resistor.

7.2 Functional Block Diagram

7.3 Feature Description

7.3.1 ON and OFF Control

The ON pin controls the state of the switch. The ON pin is compatible with standard GPIO logic threshold so it

can be used in a wide variety of applications. When the pin pull high, the device enables, and when it is low, the

device disables.

7.3.2 Adjustable Slew Rate

The CT pin is a tri-state pin, meaning that it has three different slew rates depending on the connection to the

pin. The CT pin can be grounded, pulled high, or left floating. Floating defines as an effective resistance to GND

or other pins greater than 10 MΩ.

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TPS22998

SLVSG05 – OCTOBER 2021

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Product Folder Links: TPS22998