TPS2103D

Overview

The TPS2103D is a source selector switch IC manufactured by Texas Instruments, designed for power distribution applications. It features a 2:1 input-to-output ratio, allowing selection between two voltage sources to a single output. The device supports both N-channel and P-channel MOSFETs with an internal switch configuration. It operates within a supply voltage range of 2.7 V to 4 V and delivers a maximum output current of 500 mA. The component is housed in an 8-SOIC package and functions reliably across a temperature range of -40°C to +70°C.

Feature Summary

• Dual-input source selection capability for redundant power architectures
• Supports both N-channel and P-channel external MOSFET configurations
• Integrated control logic for automatic source prioritization

Applications

• Handheld mobile devices requiring dual battery or charger selection
• Portable electronics needing seamless power source switching
• Systems utilizing redundant power inputs for reliability

Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape/reel specifications. Confirm RoHS compliance status and environmental classification details prior to integration. Ensure the design accounts for the specified operating temperature range and supply voltage limits. Check for any discontinuance notifications as this part may have limited availability.

Selection Notes

Select this component when a compact solution for dual-source power management is required. The 8-SOIC package offers a surface-mount footprint suitable for space-constrained designs. Consider the 500 mA output current limit and the 2.7 V to 4 V operating range to ensure compatibility with the target system's power rails and load requirements.

Part Context

The TPS2103D belongs to the TPS2103 series of OR controllers and source selector switches. This family provides integrated solutions for managing multiple power inputs in portable applications. The D suffix denotes the 8-SOIC package variant, distinguishing it from other package options like SOT-23-5 available in the same series.

Replacement Considerations

TPS2103DBVT and TPS2103DBVR are alternative package variants within the same functional series. Verify pinout compatibility and thermal performance when substituting these parts.