LM2736YMKX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2736YMKX/NOPB is a high-efficiency, synchronous step-down DC-DC converter from Texas Instruments. It integrates two N-channel power MOSFETs and operates at a fixed switching frequency of 1.5 MHz. The device supports an input voltage range of 2.7 V to 5.5 V and delivers up to 1.5 A output current. It features adjustable output voltage via external resistors, enabling outputs from 0.8 V to 5.0 V. Key electrical characteristics include a quiescent current of 40 µA in active mode and 1.5 µA in shutdown mode. The converter utilizes pulse-width modulation (PWM) for efficient load regulation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates dual N-channel power switches for compact solution size
• Fixed 1.5 MHz switching frequency reduces passive component requirements
• Low quiescent current enhances efficiency under light-load conditions
• Internal soft-start minimizes inrush current during startup

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment
• Point-of-load regulation modules
• Embedded systems with single-cell lithium-ion batteries

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as NOPB to ensure compliance with RoHS standards and specific tape-and-reel packaging configurations. Confirm that the ordering code matches the exact thermal package and pinout requirements for your PCB layout. Cross-reference manufacturer documentation to validate availability and lead times through authorized distribution channels prior to finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing space-constrained applications requiring high efficiency from single-cell lithium-ion sources. Ensure the required output voltage falls within the 0.8 V to 5.0 V range supported by the internal reference. Evaluate thermal performance based on expected load currents and ambient operating temperatures to determine if additional heatsinking or PCB copper area is necessary for reliable operation.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2736 family of synchronous buck converters designed for mobile and handheld applications. It replaces older non-synchronous designs by improving efficiency through integrated low-resistance power switches. The MKX package provides a small footprint suitable for dense board layouts. It serves as a direct upgrade path for legacy systems requiring higher efficiency and smaller passive components.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include the LM2736YMK/NOPB for non-x variant requirements. Verify pin compatibility and thermal characteristics before swapping. Alternative families may require circuit redesign due to differing control architectures.