LM2734XQMKX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2734XQMKX/NOPB is an automotive-grade step-down DC-DC converter manufactured by Texas Instruments. It operates with a wide input voltage range of 3 V to 20 V and delivers up to 1 A of output current. The device supports adjustable output voltages from 800 mV to 18 V using external resistors. It features a fixed switching frequency of 1.6 MHz, enabling the use of small inductors and capacitors. The component is qualified to AEC-Q100 standards for automotive applications and functions reliably within an operating 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 environments
• Wide input voltage capability supporting direct connection to battery or noisy supply lines
• Fixed high-frequency operation allows for minimized passive component footprint
• Integrated power switch designed for efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered automotive electronic systems
• Infotainment and display power distribution networks
• Sensor node power supplies in connected vehicles
• General-purpose 12 V automotive bus regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes to ensure correct package and temperature grade. Confirm AEC-Q100 certification requirements match specific OEM quality protocols. Check for RoHS compliance status relevant to target markets. Ensure ESD handling procedures are followed during storage and assembly due to semiconductor sensitivity.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when automotive reliability is required alongside compact board space constraints. The 1.6 MHz frequency reduces inductor size compared to lower-frequency alternatives. Verify that the load current does not exceed the 1 A limit under all thermal conditions. Consider thermal performance if operating near maximum ambient temperatures.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2734 family of synchronous buck converters. It shares architectural similarities with other members like the LM2734XMK but includes specific automotive grading. The QMKX suffix indicates a thin SOT-23-6 package optimized for surface-mount assembly. It serves as a key solution for power management in modern automotive electronics requiring robust voltage regulation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2734XMK/NOPB offers similar electrical characteristics but lacks explicit automotive qualification documentation in standard listings.