LT3686AIMSE#PBF

Overview

The LT3686AIMSE#PBF is a synchronous step-down switching regulator 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 features a fixed 30 V maximum output capability and supports adjustable switching frequencies between 300 kHz and 2.5 MHz. It utilizes a 10-lead DFN package rated for operation from -40°C to +125°C, with a typical quiescent current of 1.1 mA.

Feature Summary

• Integrates a high-voltage N-channel power switch capable of handling up to 37 V input
• Supports wide-range programmable switching frequency for optimized efficiency and component size
• Includes internal soft-start circuitry to limit inrush current during startup

Applications

• Industrial point-of-load regulation
• Battery-powered equipment power management
• Embedded system voltage conversion

Procurement Notes

Verify the specific suffix against official documentation to confirm temperature grade and packaging format. Confirm RoHS compliance status directly with the manufacturer or authorized distributors prior to procurement. Ensure the ordering part number matches the required lead-free specifications and tape-and-reel or tube quantities as defined in the latest datasheet revision.

Selection Notes

Select this component when a compact solution is required for converting higher voltages down to lower levels. The wide input range accommodates various supply sources including single-cell lithium batteries. Consider the thermal performance of the exposed pad DFN package for heat dissipation requirements in enclosed designs.

Part Context

This part belongs to the LT3686 family of high-efficiency synchronous buck regulators. It is designed for applications requiring small footprint and high power density. The MSOP variant offers similar electrical characteristics but with different pinout and thermal properties compared to the DFN version.

Replacement Considerations

LT3686IDD#PBF: Same electrical specifications but housed in a DFN-10 package instead of MSOP.