LTC3808EDE#TRPBF

DC DC Switching Controllers Overview

The LTC3808EDE#TRPBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an adjustable switching frequency ranging from 250kHz to 750kHz and accepts input voltages between 2.75V and 9.8V. The device provides a single output capable of driving external power stages, supporting output currents up to 5A. It features a wide adjustable output voltage range from 600mV to 9.8V. Key electrical parameters include a quiescent current of 105µA and a supply current of 350µA. The component is housed in a 14-pin DFN EP package and functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology eliminates the need for external sense resistors, reducing electromagnetic interference and improving efficiency.
• Integrated clock synchronization allows the switching frequency to be locked to an external reference signal for noise management.
• Supports tracking and soft-start capabilities to manage inrush current and ensure controlled power-up sequences.

DC DC Switching Controllers Applications

• Point-of-load regulation for portable electronics powered by single-cell lithium-ion batteries
• Voltage conversion in industrial systems requiring low electromagnetic interference
• Power distribution networks in embedded computing platforms

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the part number corresponds to the active or obsolete status as listed by the manufacturer. Ensure compatibility with the required thermal performance of the 14-DFN package for the intended application environment.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring precise frequency synchronization and low noise operation without the complexity of current sense resistors. Consider the 2.75V minimum input voltage constraint against the source power rail. Evaluate the 14-DFN package thermal characteristics to ensure adequate heat dissipation for the target load current.

DC DC Switching Controllers Part Context

This component belongs to the LTC3808 family of synchronous DC/DC controllers designed for high-efficiency power conversion. It shares architectural similarities with other members of the series but is distinguished by its specific pinout and control interface optimized for compact board layouts. The device integrates essential control logic while relying on external MOSFETs for power handling.

DC DC Switching Controllers Replacement Considerations

LTC3808EDE#PBF serves as a direct alternative offering identical functionality with tube packaging instead of tape and reel.