LTC7806RUFDM#PBF

DC DC Switching Controllers Overview

The LTC7806RUFDM#PBF is a dual-phase synchronous step-down controller from Analog Devices. It operates with an input voltage range of 4.5V to 40V and supports output voltages from 800mV to 40V. The device features a fixed switching frequency of 3MHz, which allows for the use of smaller inductors and capacitors. It includes low quiescent current operation at 14µA and supports spread spectrum modulation to reduce EMI. The controller utilizes a constant frequency current mode architecture for precise regulation.

DC DC Switching Controllers Feature Summary

• Dual-phase architecture enables interleaved operation to reduce input and output ripple currents.
• Integrated spread spectrum modulation capability reduces electromagnetic interference peaks.
• Low quiescent current consumption enhances efficiency during light-load conditions.
• Supports high switching frequencies to minimize external passive component size.

DC DC Switching Controllers Applications

• High-density point-of-load conversion systems
• Industrial equipment power distribution networks
• Telecommunications infrastructure power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF confirms lead-free compliance and RoHS standards before integration. Confirm the RUFDM package designation matches the required thermal and footprint specifications for the target PCB layout. Ensure the operating temperature grade aligns with the environmental requirements of the final assembly process.

DC DC Switching Controllers Selection Notes

Select this controller when dual-phase performance is required within a 40V input limit. The 3MHz frequency optimizes the trade-off between component size and switching losses. Consider the spread spectrum feature if EMI filtering constraints are tight. Verify that the load current requirements do not exceed the capabilities of the external MOSFETs selected for the design.

DC DC Switching Controllers Part Context

This component belongs to the LTC7806 family of dual synchronous buck controllers. It shares architectural similarities with single-phase variants but provides doubled current handling capability through phase interleaving. The device is part of Analog Devices' portfolio focused on high-efficiency DC/DC conversion solutions for demanding industrial applications.

DC DC Switching Controllers Replacement Considerations

The LTC7802 serves as a functional alternative offering similar dual-phase control with spread spectrum capabilities. Both devices operate within comparable voltage ranges and utilize identical pinouts for direct board-level substitution where thermal and electrical parameters match.