LM2642MTCX/HALF

Power Management - Specialized Overview

The LM2642MTCX/HALF is a dual-synchronous-switching controller manufactured by National Semiconductor. It operates as a two-phase synchronous step-down switching controller designed for high-efficiency power management applications. The component utilizes a PDSO28 package and supports a switching frequency of 340kHz. This integrated circuit integrates the necessary control logic to drive external synchronous MOSFETs, enabling precise voltage regulation in multi-phase DC-DC conversion systems.

Power Management - Specialized Feature Summary

• Dual-channel architecture supporting two-phase synchronous step-down operation
• Integrated control logic for driving external synchronous MOSFETs
• Designed for high-efficiency power management in DC-DC conversion

Power Management - Specialized Applications

• Multi-phase DC-DC power supply systems
• High-efficiency voltage regulation circuits
• Power management units requiring synchronous rectification

Power Management - Specialized Procurement Notes

Verify the manufacturer designation against current Texas Instruments records, as National Semiconductor was acquired. Confirm the specific suffix 'HALF' corresponds to tape-and-reel packaging or specific lot codes if required by your assembly process. Ensure the PDSO28 package dimensions match your PCB footprint requirements before finalizing procurement.

Power Management - Specialized Selection Notes

Select this component when a dual-phase synchronous buck controller is required for improved current handling and thermal distribution. The 340kHz frequency offers a balance between component size and efficiency. Ensure compatibility with external MOSFET gate drive requirements and verify that the PDSO28 package is suitable for your manufacturing capabilities.

Power Management - Specialized Part Context

This part belongs to the LM2642 family of dual-synchronous switching controllers. The base model LM2642MTC serves as the primary reference, with the LM2642MTCX/HALF representing a specific packaging or reel variant. These devices are engineered for applications demanding robust two-phase performance from a single IC solution.

Power Management - Specialized Replacement Considerations

Consult official cross-reference data for direct equivalents. Verify pinout compatibility and electrical specifications against alternative dual-phase controllers from other manufacturers before substitution.