LM5168PQDDARQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM5168PQDDARQ1 is an automotive-grade synchronous buck switching regulator from Texas Instruments, designed for high-voltage applications. It operates with a wide input voltage range of 6 V to 120 V and provides a single adjustable output from 1.2 V up to 90 V. The device delivers a maximum output current of 300 mA. It supports fixed switching frequencies of 100 kHz, 200 kHz, 400 kHz, or 1 MHz, or allows external synchronization. The component is housed in an 8-pin SO-PowerPAD package and is qualified to AEC-Q100 standards, ensuring reliability in demanding automotive environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports wide input voltage ranges suitable for 12-V and 24-V automotive systems
• Integrated synchronous rectification for improved efficiency
• AEC-Q100 qualified for automotive grade reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Body control modules
• Telematics units

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix codes on the datasheet to confirm pinout and thermal pad configurations. Ensure the selected variant matches the required switching frequency setting. Confirm that the SO-PowerPAD-8 package footprint aligns with the PCB layout guidelines provided in the manufacturer's design resources before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring high input voltages up to 120 V. It is appropriate for applications needing a single regulated output with moderate current demands around 300 mA. Consider the thermal performance of the PowerPAD package for heat dissipation requirements in enclosed automotive enclosures.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM516x-Q1 family of high-voltage synchronous buck converters. These devices are engineered specifically for automotive power distribution networks. The family offers flexibility in switching frequency selection to optimize passive component size while maintaining stable regulation under varying load conditions typical in vehicle electrical architectures.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5169PQDDARQ1: Offers higher output current capability (650 mA) compared to the 300 mA limit of the LM5168PQDDARQ1. Verify if the increased current rating fits the thermal constraints of the existing design.