LM2734YMKX

Voltage Regulators - DC DC Switching Regulators Overview

The LM2734YMKX/NOPB is a synchronous step-down DC-DC converter from Texas Instruments, housed in a thin SOT-23-6 package. It supports an input voltage range of 3 V to 20 V and delivers up to 1 A output current. The device features a fixed switching frequency of 550 kHz and provides an adjustable output voltage from 800 mV to 18 V. Quiescent current is specified at 1.5 mA, with an operating temperature range spanning -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel power MOSFETs for efficient synchronous rectification within a compact footprint.
• Incorporates internal soft-start circuitry to limit inrush current during startup sequences.
• Features cycle-by-cycle peak current limiting and thermal shutdown protection for robust operation under fault conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring efficient voltage regulation
• Embedded systems with single-supply architectures
• Industrial control modules utilizing wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete ordering part number, including suffixes such as /NOPB or X, against official Texas Instruments documentation to ensure correct pinout and environmental compliance. Confirm that the specific variant matches the required switching frequency and package dimensions for your PCB layout. Cross-reference datasheet revisions to validate electrical characteristics before finalizing component selection.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when space constraints necessitate a thin SOT-23 package while maintaining 1 A load capability. Ensure the application input voltage remains within the 3 V to 20 V operational window. Evaluate external inductor and capacitor values to achieve desired ripple specifications at the 550 kHz switching frequency. Consider thermal dissipation requirements given the small surface area of the thin package.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2734 family of thin SOT-23 step-down converters. It serves as a cost-effective solution for applications needing moderate current output in minimal board space. The family includes variants with different frequencies and packages, offering flexibility for diverse power management designs without sacrificing efficiency.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2734YMKX/NOPB is the primary equivalent part number. Verify compatibility with LM2734YM/KX variants regarding pin configuration and electrical parameters. Consult manufacturer substitution guides for any changes in thermal performance or packaging specifications.