LTC3785EUF-1#PBF

DC DC Switching Controllers Overview

The LTC3785EUF-1#PBF is a synchronous buck-boost DC/DC switching controller manufactured by Analog Devices Inc. It operates within an input voltage range of 2.7V to 10V and supports up to two outputs with a maximum output current of 5A. The device utilizes a 24-WFQFN (4x4) package and functions at a switching frequency between 100kHz and 1MHz. It features a maximum duty cycle of 99% and includes control characteristics such as current limiting, enable functionality, and soft start. The component is rated for an operating temperature range of -40°C to 85°C.

DC DC Switching Controllers Feature Summary

• Synchronous buck-boost topology drives all N-channel power MOSFETs from input voltages above, below, or equal to the output voltage.
• Integrated power good status indicator provides system monitoring capability.
• Supports high efficiency conversion with adjustable switching frequency.

DC DC Switching Controllers Applications

• High-efficiency buck-boost controllers requiring power good indication
• Systems where input voltage varies significantly relative to output requirements
• Industrial and portable applications utilizing N-channel power MOSFETs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm that the EUF variant corresponds to the 24-WFQFN package dimensions. Ensure compatibility with the required 2.7V to 10V supply range and check for any regional distribution restrictions prior to ordering.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring a single IC solution for buck-boost regulation without external diodes. Consider the 24-QFN footprint for space-constrained layouts. Verify that the 5A output current capability meets load demands and that the 100kHz to 1MHz frequency range aligns with EMI and inductor selection constraints.

DC DC Switching Controllers Part Context

This part belongs to the LTC3785 series of synchronous buck-boost controllers. It is designed to simplify power design by handling wide input ranges while maintaining high efficiency. The device integrates gate drivers for external N-channel MOSFETs, reducing component count compared to asynchronous solutions.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.