LM5169PQDDARQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM5169PQDDARQ1 is an automotive-grade synchronous buck DC-DC converter from Texas Instruments, designed for high-voltage applications. It features a wide input voltage range of 6 V to 120 V and supports adjustable output voltages from 1.2 V to 90 V with a maximum output current of 300 mA. The device operates at switch frequencies between 100 kHz and 1 GHz, utilizing a Buck or Flyback topology. It includes integrated high-side and low-side power MOSFETs within an 8-SO-PowerPad package. The component is qualified to AEC-Q100 standards and functions reliably across junction temperatures ranging from -40 °C to +150 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports both Buck and Flyback topologies for versatile power conversion architectures
• Integrated high-side and low-side power MOSFETs simplify external component requirements
• Automotive qualification ensures reliability in demanding vehicle environments
• Wide input voltage range accommodates various industrial and battery-powered systems

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment and display power supplies
• Industrial control system power distribution
• Battery management systems requiring wide input tolerance
• High-voltage point-of-load regulation modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix PQDDARQ1 matches the required automotive grade and pinout configuration. Confirm that the 8-SO-PowerPad package dimensions align with your PCB footprint constraints. Ensure the design accounts for the thermal performance characteristics associated with the specified junction temperature range and operating conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 120 V is required alongside adjustable output settings. Consider the LM5169 series if Flyback capability is needed for isolated or non-isolated applications. Evaluate the 300 mA output current limit against load requirements and ensure the switching frequency range suits the desired filter component sizes.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5169 family of high-voltage synchronous buck converters. The family includes variants such as LM5169FQDDARQ1 and LM5169FDDAR, which may differ in static current, fixed vs. adjustable outputs, or temperature ratings. The LM5169 series is engineered for robust performance in high-voltage environments, offering integrated protection features and compact packaging solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5169FQDDARQ1

Voltage Regulators - DC DC Switching Regulators FAQ

Does the LM5169PQDDARQ1 support Flyback topology?

Yes, the datasheet specifies that the LM5169 series supports both Buck and Flyback topologies.

What is the maximum input voltage for this device?

The maximum input voltage rating for the LM5169PQDDARQ1 is 120 V.