The TPS2115PWG4 from Texas Instruments is an innovative automatic power multiplexer that offers a versatile power management solution for systems requiring multiple power sources. This integrated circuit is designed to seamlessly switch between two power supplies, such as a battery and an AC adapter, ensuring a continuous power supply to the load without interruption.

Key Features

• Wide Voltage Range: The device operates with input voltages from 2.8V to 5.5V, making it suitable for a variety of low-power applications.
• Automatic Switching: The TPS2115PWG4 automatically selects the highest priority power source available, based on voltage levels, without the need for external control.
• Cross-Conduction Block: It incorporates a built-in block to prevent cross-conduction during the transition between power sources.
• Low R_ON: The low on-resistance of the internal FETs minimizes voltage drop and power dissipation, enhancing overall efficiency.
• Power Good Outputs: The device provides two open-drain power-good outputs, one for each input, to indicate whether a valid power source is connected.
• Thermal Protection: Thermal shutdown protection is included to safeguard the device and the system under extreme conditions.

Applications

The TPS2115PWG4 is ideal for a wide range of applications that require reliable power source selection, including:

• Portable Devices
• Redundant Power Supplies
• Industrial Equipment
• Medical Instruments
• Point-of-Sale Machines

Package and Quality

The device is available in a 14-pin TSSOP (PWG4) package, offering a compact footprint for space-constrained applications. Texas Instruments ensures high standards of quality and reliability, making the TPS2115PWG4 a trusted choice for critical systems that cannot afford downtime.

With its combination of automatic switching, protection features, and efficient power handling, the TPS2115PWG4 stands out as a smart choice for designers looking to enhance their power management strategies.