LM2736XMKX

Voltage Regulators - DC DC Switching Regulators Overview

The LM2736XMKX is a synchronous step-down DC-DC regulator manufactured by Texas Instruments. It operates with an input voltage range of 2.7V to 18V and provides an adjustable output voltage from 0.8V to 18V. The device delivers a continuous output current of 1A. It features a fixed switching frequency of 1.6MHz, enabling the use of small external components. The IC is housed in a thin SOT-23-6 package and supports operation across a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency without requiring external Schottky diodes
• Fixed 1.6MHz switching frequency allows for compact passive component selection
• Wide input voltage range accommodates single-cell lithium-ion or multi-cell battery applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics powered by single-cell lithium-ion batteries
• General-purpose point-of-load regulation for digital logic circuits
• Battery-powered handheld devices requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'XMKX' against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Confirm RoHS compliance status and moisture sensitivity level prior to integration into surface-mount assembly processes. Ensure the supply chain source provides valid traceability documentation for this discontinued or legacy part number.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for converting higher battery voltages to lower logic levels. The 1A current capability suits moderate load applications where space constraints limit the use of larger packages. Consider the 1.6MHz frequency trade-off between component size and electromagnetic interference compared to lower-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2736 family of thin SOT-23 regulators designed for space-constrained portable applications. It serves as a direct replacement for older non-synchronous buck converters in designs requiring improved efficiency and reduced bill of materials due to the elimination of external catch diodes.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.