LM5012QDDARQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM5012QDDARQ1 is an automotive-grade, non-synchronous buck DC/DC converter from Texas Instruments. It supports a wide input voltage range of 6 V to 100 V and delivers up to 3.5 A of output current. The device features a fixed 3.5-ms internal soft-start timer and operates with a junction temperature range of -40°C to +150°C. It includes integrated protection mechanisms such as peak current-limit, input UVLO, and thermal shutdown. The converter utilizes a constant on-time (COT) control architecture with a minimum controllable on time of 50 ns.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• AEC-Q100 qualified for automotive applications with functional safety capability documentation
• Optimized for ultra-low EMI requirements meeting CISPR 25 Class 5 standards
• Integrated 100-V power MOSFET eliminates the need for external loop compensation components
• Ultra-low quiescent currents including 10-μA no-load sleep current and 3.1-μA shutdown current

Voltage Regulators - DC DC Switching Regulators Applications

• Hybrid, electric, and powertrain systems
• Inverter and motor control circuits
• 48-V to 12-V DC/DC converter stages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 automotive qualification status. Confirm the package designation matches the required SO-PowerPAD-8 footprint. Ensure design compliance with CISPR 25 Class 5 EMI limits if applicable. Check for functional safety documentation availability if ISO 26262 compliance is required for the system design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for high-voltage automotive environments requiring rugged operation up to 150°C junction temperature. The 3.5-A current rating suits moderate load applications where synchronous rectification is not mandatory. The COT architecture simplifies layout by removing compensation networks. Consider pin-to-pin compatibility with LM5163-Q1 or LM5164-Q1 if different current ratings are needed later.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM501x family of high-voltage buck converters designed for automotive power distribution. It shares architectural similarities with the LM5163-Q1 and LM5164-Q1, offering scalable solutions across different current capabilities. The family targets robust power management in harsh electromagnetic and thermal environments typical of modern vehicle architectures.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5163QDDARQ1

Voltage Regulators - DC DC Switching Regulators FAQ

Is the LM5012QDDARQ1 a synchronous rectifier?

No, it is a non-synchronous buck converter.

What is the minimum controllable on time?

The minimum controllable on time is 50 ns.