LTC3809IDD-1#PBF

DC DC Switching Controllers Overview

The LTC3809IDD-1#PBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 2.75V to 9.8V and supports output voltages from 600mV to 9.8V. The device features a fixed switching frequency of 550kHz and utilizes a 10-WFDFN (3x3) package with an exposed pad. It includes integrated soft-start, tracking, and enable functions, operating within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Supports output voltage tracking for synchronized power sequencing
• Integrates soft-start functionality to limit inrush current
• Features enable control for system power management

DC DC Switching Controllers Applications

• Point-of-load regulation in industrial systems
• Power distribution networks requiring low input voltage
• Embedded systems with sequential power requirements

DC DC Switching Controllers Procurement Notes

Verify the specific suffix IDD-1 against the official datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure the 10-DFN package footprint aligns with the PCB layout. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component when a single-output synchronous buck controller is required for inputs up to 9.8V. The 550kHz frequency offers a balance between efficiency and component size. Consider the DFN package for space-constrained designs requiring thermal performance via the exposed pad.

DC DC Switching Controllers Part Context

This part belongs to the LTC3809 family of synchronous buck controllers designed for low input voltage applications. It provides a compact solution for generating regulated outputs from varying input sources, commonly used in portable and industrial electronics where efficient power conversion is critical.

DC DC Switching Controllers Replacement Considerations

Check for direct substitutes within the LTC3809 series or other Analog Devices synchronous buck controllers with compatible input ranges and package types. Verify functional equivalence regarding tracking and soft-start capabilities.