TPS2115AIPWRCT

Overview

The TPS2115AIPWRCT is an autoswitching power multiplexer manufactured by Texas Instruments, designed for seamless power source selection. It features a single output with a maximum continuous current of 1.25 A and a configurable current limit ranging from 630 mA to 2 A. The device operates within a supply voltage range of 2.8 V to 5.5 V and supports two input sources. Key electrical parameters include a maximum on-time of 1 ms, a maximum deadtime of 5 ms, and a maximum on-resistance of 110 mOhms. It is rated for operation between -40°C and +85°C and is housed in an 8-pin TSSOP package.

Feature Summary

• Autoswitching functionality enables automatic transition between dual power inputs without manual intervention.
• Configurable current limiting allows protection settings to be adjusted between 630 mA and 2 A.
• Low on-resistance minimizes power loss and heat generation during conduction.

Applications

• Portable electronic devices requiring redundant power sources
• Battery-backed systems ensuring uninterrupted operation
• USB peripheral power distribution circuits

Procurement Notes

Verify the specific suffix 'CT' against the official Texas Instruments datasheet to confirm cut-tape packaging specifications. Ensure the operating temperature range and pinout configuration match the design requirements before finalizing procurement. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and avoid counterfeit components.

Selection Notes

Select this component when designing systems that require automatic power switchover between two sources. Consider the 1.25 A output capability and low on-resistance for efficiency-critical applications. Verify that the 2.8 V to 5.5 V input range aligns with the available power rails. Evaluate the need for configurable current limiting to protect downstream loads from overcurrent conditions.

Part Context

The TPS2115A belongs to the TPS211x family of autoswitching power multiplexers from Texas Instruments. This series provides reliable power path management for portable electronics. The device simplifies system design by integrating dual-input switching and protection features into a compact surface-mount package, reducing the need for external discrete components.

Replacement Considerations

TPS2115APW

FAQ

What is the maximum continuous output current?

The maximum continuous output current is 1.25 A.

How is the current limit configured?

The current limit is configurable via an external resistor, allowing adjustment from 630 mA to 2 A.