LMR14030SQDDAQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR14030SQDDAQ1 is an automotive-grade SIMPLE SWITCHER step-down converter from Texas Instruments. It features a 40 V maximum input voltage range and delivers up to 3.5 A output current. The device supports adjustable output voltages from 800 mV to 28 V with a single output configuration. Operating at a fixed switching frequency of 2.2 MHz, it achieves low quiescent current of 40 uA. The component is qualified to AEC-Q100 standards and operates within a temperature range of -40 °C to +125 °C. It utilizes an 8-pin PowerSOIC package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle applications
• Integrated high-side MOSFET enables compact design with minimal external components
• Fixed 2.2 MHz switching frequency allows for smaller passive component selection
• Low 40 uA quiescent current contributes to efficient power management in standby modes

Voltage Regulators - DC DC Switching Regulators Applications

• Infotainment system power distribution
• Telematics control unit regulation
• Body control module voltage stepping
• ADAS sensor power supply conditioning

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q1' confirms automotive grade status and AEC-Q100 compliance. Ensure the 'DDAQ' package designation matches the required 8-PowerSOIC footprint. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Validate that the operating temperature range meets the specific environmental requirements of the target application.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when automotive reliability and high efficiency are critical. The 3.5 A capacity suits moderate load applications requiring stable voltage regulation. Consider the fixed 2.2 MHz frequency for size-constrained designs. Compare against non-automotive variants if cost sensitivity outweighs the need for AEC-Q100 certification. Evaluate thermal performance based on the SOIC package limitations.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR14030 family of SIMPLE SWITCHER converters. It shares core topology with industrial versions but includes enhanced testing for automotive environments. The family offers varying current ratings, with this model providing a balance between power delivery and component count. It complements other TI automotive regulators designed for body and chassis electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR14030SDDAR serves as the industrial equivalent without automotive qualification. LMR14030SQDPRTQ1 offers the same electrical specifications but in a WSON-10 package. Verify pinout compatibility and thermal dissipation characteristics when substituting packages.