LT3686HDD#TRPBF

Overview

The LT3686HDD#TRPBF is a high-efficiency, synchronous step-down DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6 V to 37 V and delivers up to 1.2 A of output current. The device integrates a power MOSFET and supports switching frequencies from 300 kHz to 2.5 MHz. It features low quiescent current of 1.1 mA and operates within a temperature range of -40°C to +125°C. The component is housed in a compact 3 mm x 3 mm DFN-10 package.

Feature Summary

• Integrates a synchronous buck topology for efficient power conversion
• Supports programmable switching frequency selection via external resistor
• Features low quiescent current operation for improved efficiency at light loads

Applications

• Industrial control systems
• Telecommunications infrastructure
• Point-of-load regulation for embedded processors

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the DD package variant matches the required footprint. Ensure compatibility with the intended input voltage range and thermal requirements for the target application environment before finalizing procurement.

Selection Notes

Select this component for applications requiring a wide input voltage range up to 37 V and moderate output current. Consider the trade-off between switching frequency and external component size. Verify that the thermal performance of the DFN-10 package meets the system's heat dissipation needs under maximum load conditions.

Part Context

This part belongs to the LT3686 family of high-voltage synchronous buck converters. It is designed to replace discrete solutions or lower-performance regulators in space-constrained designs. The family offers integrated power switches to reduce board area and simplify design implementation.

Replacement Considerations

LT3686IDD#PBF is a tube-packaged version of the same functional device.