LM2734XQMKE/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2734XQMKE/NOPB is an automotive-grade synchronous step-down DC-DC regulator manufactured by Texas Instruments. It operates with a wide input voltage range of 3 V to 20 V and delivers a maximum output current of 1 A. The device features a fixed switching frequency of 1.6 MHz, allowing for the use of small external components. The adjustable output voltage ranges from 800 mV to 18 V. It includes integrated protection features such as cycle-by-cycle current limit, thermal shutdown, and soft-start. The component is qualified to AEC-Q100 standards and functions within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle applications
• Integrated synchronous rectification for high efficiency across load conditions
• Fixed internal switching frequency reduces external component count and board space
• Built-in thermal shutdown and current limit protection ensure operational safety

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered automotive systems requiring efficient voltage regulation
• Infotainment and display power distribution networks
• Sensor interface circuits in automotive environments
• General-purpose 12 V or 24 V automotive bus conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes to confirm package type and tape/reel specifications. Ensure the procurement source provides valid RoHS compliance documentation. Confirm that the supplier offers genuine Texas Instruments products to avoid counterfeit risks. Check for specific storage and handling requirements related to moisture sensitivity levels before assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring AEC-Q100 certification. Choose this model over non-automotive variants if long-term reliability under thermal stress is critical. Consider the 1.6 MHz frequency for balancing efficiency and passive component size. Verify that the required output voltage falls within the 800 mV to 18 V adjustable range.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2734 family of step-down regulators designed for automotive applications. It shares functional similarities with other members like the LM2734Z series but differs in package options and specific electrical characteristics. The XQMKE suffix indicates a thin SOT-23-6 package variant optimized for space-constrained PCB layouts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2734XQMK/NOPB is a parameter-equivalent alternative within the same family.