LMR14020SQDPRTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR14020SQDPRTQ1 is an automotive-grade synchronous step-down DC/DC converter from Texas Instruments' SIMPLE SWITCHER family. It operates with an input voltage range of 4 V to 40 V and delivers a continuous output current of 3.5 A. The device features an adjustable output voltage ranging from 800 mV to 28 V. It supports a programmable switching frequency between 200 kHz and 2.5 MHz. Quiescent current is specified at 40 µA. 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

• Integrated synchronous rectification for high efficiency in a compact footprint
• Programmable switching frequency allows optimization for external component size and transient response
• Automotive qualification ensures reliability under harsh operating conditions

Voltage Regulators - DC DC Switching Regulators Applications

• On-board charging systems for electric vehicles
• Infotainment and display power distribution
• Body control modules requiring robust voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'RQ1' confirms the tape-and-reel packaging format and automotive grade status. Confirm the WSON-10 package variant matches the target PCB layout requirements. Ensure compatibility with the intended switching frequency settings against external passive component specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3.5 A output capability is required within a 40 V input system. The WSON-10 package offers a smaller solution size compared to SOIC variants. Consider the thermal performance of the exposed pad design for high-current applications. Verify that the desired switching frequency falls within the 200 kHz to 2.5 MHz range for optimal filter component selection.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR140x0-Q1 series, which includes variants with different current ratings such as the LMR14020 and LMR14030. The SQDPRRQ1 designation indicates the specific pin-compatible WSON-10 package option within this family. It shares core architecture with other SIMPLE SWITCHER devices but is optimized for automotive durability and specific current delivery needs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR14020SQDPRTQ1

Voltage Regulators - DC DC Switching Regulators FAQ

What is the minimum output voltage supported by this regulator?

The minimum adjustable output voltage is 800 mV.

Does this device support external synchronization?

The datasheet specifies a programmable internal switching frequency range but does not explicitly document an external sync pin feature for this specific package variant.