LTC3769IUF#TRPBF

DC DC Switching Controllers Overview

The LTC3769IUF#TRPBF is a synchronous boost and SEPIC DC/DC switching controller manufactured by Analog Devices Inc. It operates with a supply voltage range of 4.5V to 60V and supports switching frequencies between 105kHz and 760kHz. The device features a maximum duty cycle of 96% and includes integrated current limit, enable, frequency control, power good, and soft-start functions. Packaged in a 24-QFN (4x4) case, it is designed for high-efficiency power conversion applications within an operating temperature range of -40°C to 125°C TJ.

DC DC Switching Controllers Feature Summary

• Supports boost and SEPIC topologies with synchronous rectification for enhanced efficiency
• Integrated control features including current limiting, frequency synchronization capability, and soft-start
• Wide input supply voltage range accommodating various power source requirements
• High thermal performance rated for industrial temperature extremes

DC DC Switching Controllers Applications

• Industrial power supplies requiring isolated or non-isolated regulation
• Battery-powered systems utilizing boost conversion architectures
• SEPIC converter designs for varying input voltage conditions
• Automotive electronics compatible with wide voltage fluctuations

DC DC Switching Controllers Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the I-grade temperature rating matches your environmental requirements. Ensure the 24-QFN footprint aligns with your PCB layout specifications. Check for recent production change notices regarding material updates before finalizing procurement plans.

DC DC Switching Controllers Selection Notes

Select this component when designing boost or SEPIC converters requiring a 60V input capability. Consider the 105kHz to 760kHz frequency range for balancing efficiency and component size. Verify that external components support the required current levels for your specific application load. Ensure adequate thermal management for the QFN package under maximum load conditions.

DC DC Switching Controllers Part Context

This part belongs to the LTC3769 family of low quiescent current synchronous boost controllers. It is distinct from buck-only controllers like the LT3741 or multi-output regulators like the LTC3589. The device focuses on single-output high-voltage boost applications rather than complex multi-rail sequencing or LED driving tasks found in other Analog Devices PMIC lines.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Analog Devices resources for pin-compatible alternatives or functional equivalents if direct substitution is required.