LTC3784IUFD#TRPBF

DC DC Switching Controllers Overview

The LTC3784IUFD#TRPBF is a synchronous step-up DC/DC controller from the PolyPhase series, designed for high-efficiency boost applications. It operates with an input voltage range of 2.3V to 60V and supports output voltages from 1.2V to 60V. The device features a programmable switching frequency between 105kHz and 760kHz and includes two independent outputs. Key electrical parameters include a maximum duty cycle of 96% and a quiescent current of 28µA. It is housed in a 28-lead QFN package rated for operation between -40°C and +125°C.

DC DC Switching Controllers Feature Summary

• Integrates dual-phase synchronous rectification control for enhanced power density and efficiency in boost topologies.
• Supports wide input voltage ranges down to 2.3V, enabling operation from single-cell lithium sources or higher bus voltages.
• Includes comprehensive protection and control features such as adjustable current limit, soft start, and power good indication.

DC DC Switching Controllers Applications

• Industrial power supplies requiring isolated or non-isolated boost stages
• Battery-powered equipment needing extended runtime through efficient voltage stepping
• Telecommunications infrastructure utilizing standard voltage buses

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm that the operating environment remains within the specified temperature range of -40°C to +125°C junction temperature. Ensure input voltage does not exceed the 60V absolute maximum rating during transient conditions. Cross-reference the datasheet for thermal pad soldering requirements to maintain reliability.

DC DC Switching Controllers Selection Notes

Select this component when designing a multi-phase boost converter requiring precise current sharing and low noise. Compare against single-phase controllers if higher output currents are needed without increasing ripple. Consider the 28-QFN package size for board space constraints. Verify that the external inductor selection matches the desired frequency range for optimal performance.

DC DC Switching Controllers Part Context

This part belongs to Analog Devices' PolyPhase family, which focuses on multiphase power management solutions. It complements other buck and buck-boost controllers in the portfolio by addressing high-current boost requirements. The device shares architectural similarities with the LTC3787 but differs in input voltage specifications and target application segments.

DC DC Switching Controllers Replacement Considerations

The LTC3784EUFD#PBF serves as a tube-packaged alternative with identical electrical characteristics. Designers should verify pin compatibility and thermal performance when substituting between reel and tube packages. No direct functional replacements exist outside the PolyPhase boost controller lineup.