LM70860RRXR

Voltage Regulators - DC DC Switching Regulators Overview

The LM70860RRXR is a high-density synchronous buck converter from Texas Instruments, featuring an input voltage range of 4.5V to 80V and delivering up to 6A of output current. It operates with a switching frequency between 200 kHz and 2.2 MHz, supporting adjustable output voltages from 800 mV to 55 V. The device exhibits low quiescent current of 2.3 uA and functions within a temperature range of -40°C to +150°C TJ. Packaged in a 29-pin VQFN-EP, it integrates shutdown functionality and is designed for high efficiency in power management applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Wide input voltage capability ranging from 4.5V to 80V for flexible power supply integration
• Low electromagnetic interference design suitable for noise-sensitive environments
• Integrated synchronous rectification for enhanced conversion efficiency
• Compact VQFN-EP package optimized for high-power density layouts

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial automation systems requiring robust step-down regulation
• Communication infrastructure equipment with wide input ranges
• Enterprise computing platforms needing efficient power delivery
• Test and measurement instruments demanding stable voltage sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix RRXR corresponds to the required tape-and-reel packaging configuration before ordering. Confirm that the 29-pin VQFN-EP thermal pad connection meets your PCB layout requirements for adequate heat dissipation. Ensure compatibility with the specified 4.5V to 80V input range for your target application circuit design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an input voltage up to 80V is required alongside a 6A continuous output current. Consider the LM70860RRXR over lower-voltage variants if system architecture demands higher input tolerance. Evaluate the 200 kHz to 2.2 MHz frequency range against external filter size constraints and efficiency targets for optimal performance.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM708x0 family of low-IQ, wide-VIN synchronous buck converters. The series includes variants such as the LM70880 (8A) and LM70660 (6A, 65V), offering scalable current and voltage options. The LM70860RRXR specifically addresses applications needing 6A output with an 80V input ceiling, fitting within TI's high-efficiency PMIC portfolio.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include the LM70880RRXR for higher current needs or LM70660RRXR for 65V input limits. Verify pinout and thermal pad configurations remain identical when cross-referencing datasheets to ensure mechanical and electrical compatibility without redesigning the footprint.