LMR14050SQDPRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR14050SQDPRRQ1 is a SIMPLE SWITCHER automotive step-down converter featuring a 40 V input range and 5 A continuous output current. It operates with a switching frequency from 200 kHz to 2.5 MHz and delivers an adjustable output voltage between 800 mV and 28 V. The device maintains a low quiescent current of 40 μA in active mode and 1 μA in shutdown. It is housed in an 8-pin SO-PowerPAD package, rated for operation from -40 °C to +125 °C, and complies with AEC-Q100 Grade 1 standards.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side MOSFET with low on-resistance for efficient power conversion
• Internal loop compensation simplifies design by minimizing external component count
• Adjustable switching frequency allows optimization for efficiency or size
• Built-in protection against overcurrent, thermal overload, and output overvoltage

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive battery regulation systems
• Industrial power supply units
• Telecommunications and data communication equipment
• General wide-input voltage regulation tasks

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'RRQ1' matches the required tape-and-reel packaging configuration for automated assembly lines. Confirm that the AEC-Q100 qualification aligns with your system's environmental reliability requirements. Ensure the SO-PowerPAD-8 footprint dimensions are compatible with your PCB layout constraints before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 5 A buck regulator is needed for automotive environments requiring AEC-Q100 certification. It is suitable for designs prioritizing high efficiency across a wide input voltage range. Consider the internal compensation feature if reducing bill-of-materials complexity is a priority. Evaluate the thermal performance of the PowerPAD package against your system's heat dissipation capabilities.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR14050 family of SIMPLE SWITCHER regulators from Texas Instruments. It shares architectural similarities with the LMR14030 and LMR14020 series, offering pin-to-pin compatibility within the same package options. The family targets applications requiring reliable power management in harsh industrial and automotive conditions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR14050SQDDARQ1 is a verified alternative within the same product family, differing primarily in reel quantity rather than electrical function.