TPS22917x 1 V–5.5-V, 2-A, 80-mΩ Ultra-Low Leakage Load Switch

1 Features

• Ultra-low power consumption:

• Adjustable output discharge and fall time:

– Optional QOD resistance ≥ 150 Ω (internal)

• Always-ON true Reverse Current Blocking (RCB):

2 Applications

• Industrial systems

• Set top box

• Blood glucose meters

• Electronic point of sale

3 Description

The TPS22917x device is a small, single channel load

switch using a low leakage P-Channel MOSFET for

minimum power loss. Advanced gate control design

supports operating voltages as low as 1 V with

minimal increase in ON-Resistance and power loss.

The Rise and Fall times can be independently

adjusted with external components for system level

on time can be adjusted to manage inrush current

without adding unnecessary system delays. The

output discharge resistance (QOD) can be used to

adjust the output fall time. Connect the QOD pin

directly to the output for a fastest fall time or leave

it open for the slowest fall time.

The switch ON state is controlled by a digital input

that can interface directly with low-voltage control

signals. The TPS22917 uses active high enable logic,

while the TPS22917L uses active low. When power is

first applied, a Smart Pulldown is used to keep the ON

pin from floating until system sequencing is complete.

unnecessary power loss.

The TPS22917x device is available in a leaded

SOT-23 package (DBV) which allows visual inspection

of solder joints. The device is characterized for

operation over a temperature range of –40°C to

125°C.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS22917x

SOT-23 (6)

2.90 mm × 1.60 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

+

±

CT

TPS22917

ON

VIN

VOUT

QOD

H

L

Copyright © 2018, Texas Instruments Incorporated

Simplified Schematic

TPS22917

SLVSDW8B – SEPTEMBER 2017 – REVISED DECEMBER 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.