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See Technical Specifications

TPS2121RUXR

Power switch integrated circuits for power distribution, featuring a voltage range of 2.7V to 22V

Manufacturer:

Texas Instruments
Mfr.Part #:

TPS2121RUXR
Datasheet:

TPS2121RUXR Datasheet (PDF)
Type:

Source Selector Switch
FET Type:

N-Channel
Ratio - InputOutput:

2:1
Current - Output (Max):

4.5A
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TPS2121RUXR General Description

The TPS2121RUXR is a power multiplexer IC that enables switching between two different power sources or inputs, providing a seamless transition between them. This functionality is useful in scenarios where redundancy or load sharing between power sources is required to ensure continuous operation and reliability.

Key Features

Dual Input Power Multiplexer: The TPS2121RUXR allows you to connect two different power sources (e.g., batteries, power supplies) and seamlessly switch between them based on the input voltage conditions.
Low Quiescent Current: The IC is designed to minimize power consumption when operating, making it suitable for battery-powered applications where power efficiency is crucial.
Reverse Current Blocking: It includes reverse current blocking to prevent current from flowing back into the inactive input source.
Wide Input Voltage Range: The IC typically supports a wide input voltage range, allowing it to work with various power supply voltages.
Power-On Reset (POR) Function: The TPS2121RUXR may include a POR function that monitors the input voltage levels and generates a reset signal to ensure proper startup sequencing.
Protection Features: Some models of the IC may include protection features such as overvoltage protection (OVP) and thermal shutdown.

Application

Battery-Powered Devices
Portable Electronics
Automotive Electronics
Industrial Control
Telecommunications
Medical Devices
Consumer Electronics

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)OR Controllers, Ideal Diodes	Series	-
Type	Source Selector Switch	FET Type	N-Channel
Ratio - Input:Output	2:1	Current - Output (Max)	4.5A
Voltage - Supply	2.8V ~ 22V	Applications	General Purpose
Operating Temperature	-40°C ~ 125°C (TJ)	Mounting Type	Surface Mount
Base Product Number	TPS2121

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Ratings and Reviews

W**m 05/19/2023

No protection Have not tested whether it can be used or not

M**l 04/28/2023

I am very satisfied. Circuits work fine.

v**n 06/04/2021

Excellent product and seller. Gave the 3rd set for a full range.

E**n 01/05/2021

Soldered back to the place of burned utc2030 on the amplifier nakatomi GS-35. Everything works as it should. It came in a normal package with a "puffy", but everything works and even the legs are not bent.