LMR14020SQDPRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR14020SQDPRRQ1 is an automotive-grade SIMPLE SWITCHER synchronous buck converter from Texas Instruments. It integrates a high-side MOSFET and supports input voltages from 4 V to 40 V with a maximum output current of 2 A. The device features a fixed switching frequency of 2.2 MHz, adjustable output voltage ranging from 0.8 V to 28 V, and low quiescent current of 40 µA in sleep mode. It operates within a junction temperature range of -40°C to 125°C and is housed in a 10-WSON package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side MOSFET for compact step-down power conversion
• Fixed 2.2 MHz switching frequency to optimize external component size
• Low quiescent current of 40 µA suitable for battery-powered systems
• Internal loop compensation simplifies design and minimizes external parts

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Body control modules
• Industrial DC-DC regulation
• Unregulated power supply conditioning

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'RR' indicates tape-and-reel packaging when ordering. Confirm AEC-Q100 qualification status aligns with target automotive application requirements. Ensure the 10-WSON footprint matches the PCB layout constraints. Cross-reference the manufacturer part number against official Texas Instruments databases to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a 2 A output current from a wide 4 V to 40 V input range. The fixed 2.2 MHz frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the 10-WSON package for space-constrained designs. Evaluate thermal performance based on the expected load and ambient conditions within the specified operating temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR140x0 family of SIMPLE SWITCHER regulators, which includes variants with different current ratings such as the LMR14030 (3.5 A) and LMR14050 (5 A). All members share similar architectural features, including integrated MOSFETs and internal compensation, designed for robust performance in industrial and automotive environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include the LMR14030SQDPRRQ1 and LMR14050SQDPRRQ1 for higher current needs. Non-synchronous or different package variants like the LMR14020SDDARQ1 may require circuit redesign due to topology or footprint differences.