LM70860QRRXRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM70860QRRXRQ1 is an automotive-grade synchronous buck converter from the LM708x0-Q1 family, designed for high-density power applications. It supports a wide input voltage range of 4.5V to 80V and delivers up to 6A of output current. The device features low quiescent current of 2.3µA and an adjustable switching frequency between 200kHz and 2.2MHz. It offers positive adjustable or fixed output voltages (0.8V, 3.3V, 5V, 12V) in a 29-pin PowerVFQFN package. Qualified under AEC-Q100 standards with an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Wide input voltage capability supporting 4.5V to 80V ranges for robust system integration
• High-efficiency synchronous buck architecture optimized for high-power density requirements
• Low quiescent current consumption enhancing energy efficiency in standby modes
• Automotive qualification ensuring reliability in demanding vehicle environments

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring stable high-voltage step-down conversion
• Advanced driver-assistance systems (ADAS) power distribution networks
• Vehicle body control modules needing efficient voltage regulation
• Industrial automotive subsystems utilizing wide input voltage sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes against official Texas Instruments documentation to ensure correct packaging and temperature grade. Confirm AEC-Q100 qualification status matches specific project requirements. Cross-reference pinout and thermal pad specifications with the latest datasheet to prevent PCB layout errors. Ensure compatibility with existing bill of materials before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring input voltages up to 80V with output currents around 6A. Consider the adjustable switching frequency range if electromagnetic interference filtering needs optimization. Evaluate the 29-pin PowerVFQFN package constraints for thermal management and board space. Compare against other LM708x0 variants if different current ratings such as 4A or 8A are more suitable for the specific load profile.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM708x0-Q1 family of automotive high-efficiency buck converters. The family includes variants like the LM70840 and LM70880, which share similar architectural features but differ in maximum output current capabilities. These components are engineered to replace legacy solutions in modern automotive electronics where size, efficiency, and wide input voltage tolerance are critical design parameters.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include LM70840QRRXRQ1 for lower current needs or LM70880QRRXRQ1 for higher current demands. Verify that alternative parts maintain the same 80V input rating and automotive qualification level. Check for pin-to-pin compatibility if replacing on existing boards without redesigning the footprint.