TPS2121RUXR Description

The TPS2121RUXR are Dual-Input, Single-Output (DISO) Power Multiplexer (MUX) that are well suited for a variety of systems having multiple power sources. The devices will Automatically Detect, Select, and Seamlessly Transition between available inputs.

The TPS2121RUXR are available in WCSP and small VQFN-HR package options characterized for operation for a temperature range of –40°C to 125°C.

TPS2121RUXR Features

• Wide operating range: 2.8 V to 22 V

– Absolute maximum input voltage of 24 V

• Low RON resistance:

– TPS2120: 62 mΩ (typical)

– TPS2121: 56 mΩ (typical)

• Adjustable overvoltage supervisor (OVx):

– Accuracy < ±5%

• Adjustable priority supervisor (PR1):

– Accuracy < ±5%

• TPS2121 supports external voltage reference

• (CP2) with an accuracy of <1%

• Output current limit (ILM):

– TPS2120: 1 A – 3 A

– TPS2121: 1 A – 4.5 A

• Channel status indication (ST)

• Adjustable input settling time (SS)

• Adjustable output soft-start time (SS)

• TPS2121 Fast output switchover (tSW): 5 μs (typical)

• Low Iq from enabled input: 200 μA (typical)

• Low Iq from disabled input: 10 μA (Typical)

• Manual input source selection (OVx)

• Over-temperature protection (OTP)

TPS2121RUXR Applications

• Backup and standby power

• Input source selection

• Multiple battery management

• EPOS and barcode scanners

• Building automation and surveillance

• Tracking and telematics