LTC1439IG#TRPBF

DC DC Switching Controllers Overview

The LTC1439IG#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 functions within a temperature range of -40°C to 85°C. Key control characteristics include enable, power-on reset, and soft-start capabilities.

DC DC Switching Controllers Feature Summary

• Dual synchronous buck architecture driving external N-channel MOSFETs
• Phase-lockable fixed frequency operation up to 400kHz
• Integrated soft-start and power-on reset functionality

DC DC Switching Controllers Applications

• High efficiency dual output DC-DC conversion systems
• Industrial equipment power management
• Communication infrastructure power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the component matches the 36-SSOP physical footprint. Check for RoHS compliance status in official documentation before integration.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring two independent regulated outputs from a single IC. It is suitable for designs needing phase-lockable frequencies to minimize EMI. Consider the 36-pin SSOP package constraints for PCB layout. Evaluate thermal performance based on the specified operating temperature range.

DC DC Switching Controllers Part Context

This component belongs to the LTC1439 family of high-efficiency, low-noise synchronous buck regulators. It is designed to replace older discrete solutions or single-output controllers in compact power designs. The part integrates control logic while relying on external power stages for current handling.

DC DC Switching Controllers Replacement Considerations

LTC1439IG#PBF is a verified alternative offering identical electrical specifications but in tube packaging instead of tape-and-reel.