LTC1439IGW#TRPBF

DC DC Switching Controllers Overview

The LTC1439IGW#TRPBF is a dual synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5V to 30V and supports a maximum switching frequency of 400kHz. The device features two positive outputs with a maximum duty cycle of 99%. It utilizes a 36-SSOP package and includes control characteristics such as enable, power-on reset, and soft start functionality. The component is designed for surface mount installation and functions effectively across a temperature range of -40°C to 85°C.

DC DC Switching Controllers Feature Summary

• Dual synchronous buck topology driving external N-channel MOSFETs
• Phase-lockable fixed frequency architecture
• Integrated control features including enable, power-on reset, and soft start

DC DC Switching Controllers Applications

• High efficiency 3.3V/2.5V step-down regulators
• Systems requiring low noise linear regulation alongside switching conversion
• Automotive electronics applications

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging versus the standard tube configuration found in other variants like #PBF. Confirm that the 36-SSOP footprint matches the target PCB design. Ensure the operating temperature range meets environmental requirements. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

DC DC Switching Controllers Selection Notes

Select this component when a dual output synchronous buck solution is required with phase-lockable frequency options. It is suitable for applications needing high efficiency and low noise performance. Consider the 36-pin SSOP package constraints during layout. Verify input voltage ranges align with system power rails before finalizing the design choice.

DC DC Switching Controllers Part Context

This part belongs to the LTC1439 family of dual synchronous step-down controllers from Analog Devices. It shares architectural similarities with single-output variants but provides two independent regulated channels. The series is designed for applications demanding compact solutions with high efficiency and precise voltage regulation capabilities.

DC DC Switching Controllers Replacement Considerations

LTC1439IGW#PBF is a compatible alternative differing primarily in packaging format.