LM2734ZMKX

Voltage Regulators - DC DC Switching Regulators Overview

The LM2734ZMKX/NOPB is a synchronous step-down DC-DC converter from Texas Instruments designed for high-frequency operation. It features an integrated power switch and operates with an input voltage range of 3 V to 20 V. The device provides an adjustable output voltage ranging from 800 mV to 18 V, supporting a maximum output current of 1 A. It utilizes a fixed switching frequency of 1.6 MHz to minimize external component size. The IC is housed in a compact SOT-23-THIN-6 package and is rated for an operating junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a synchronous buck topology with an internal high-side MOSFET for efficient power conversion.
• Supports wide input voltage ranges suitable for various bus architectures.
• Features adjustable output voltage control via external resistor network.
• Includes thermal shutdown and current limit protection mechanisms.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring efficient voltage regulation
• Industrial systems utilizing 5V or 12V input rails
• Embedded controllers needing stable low-voltage power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number suffix, such as /NOPB, to ensure compliance with RoHS standards and lead-free manufacturing processes. Confirm the specific tape-and-reel packaging quantity matches your assembly requirements. Check for moisture sensitivity level (MSL) ratings if the component has been exposed to ambient conditions prior to soldering. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for converting higher voltages to lower logic levels. The 1.6 MHz switching frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the thermal performance within the SOT-23-THIN-6 package relative to the expected load current and ambient temperature constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2734 family of high-frequency synchronous buck converters. It serves as a direct replacement for older non-synchronous designs or lower-performance regulators in space-constrained applications. The family emphasizes efficiency and small footprint, making it suitable for modern portable and industrial electronics where board real estate is limited.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2734YQMKX/NOPB is a qualified automotive-grade alternative within the same family offering similar electrical characteristics and pinout compatibility.