LTC3780MPG#TRPBF

DC DC Switching Controllers Overview

The LTC3780MPG#TRPBF is a high-performance synchronous four-switch buck-boost switching regulator controller manufactured by Analog Devices Inc. It operates with input voltages above, below, or equal to the output voltage. The device features a constant frequency current mode architecture with a switchable frequency range of 200kHz to 400kHz. It supports a supply voltage (Vcc) from 4V to 30V and delivers up to 10A output current. The controller includes integrated power MOSFET drivers and offers control features such as cycle-by-cycle current limit, soft start, and power good indication.

DC DC Switching Controllers Feature Summary

• Synchronous four-switch buck-boost topology for efficient step-up, step-down, and pass-through operation
• Constant frequency current mode architecture with adjustable switching frequency
• Integrated high-current gate drivers for external N-channel power MOSFETs
• Comprehensive protection including cycle-by-cycle current limiting and thermal shutdown

DC DC Switching Controllers Applications

• Industrial systems with varying input voltage ranges
• Battery-powered equipment requiring extended runtime
• Automotive electronics operating in wide voltage environments
• Telecommunications infrastructure power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the MP grade corresponds to military temperature specifications (-55°C to 125°C) if required for your application environment. Ensure compatibility with the 24-SSOP package footprint during PCB layout. Cross-reference the latest datasheet revision for any updates to electrical characteristics or recommended component values before finalizing the design.

DC DC Switching Controllers Selection Notes

Select this controller when input voltage fluctuates significantly around the target output voltage. It is suitable for designs requiring high efficiency across wide input ranges without the complexity of multiple regulators. Consider the 24-SSOP package size constraints and thermal dissipation requirements for the external MOSFETs. Evaluate the need for the military-grade temperature rating versus commercial variants based on operational environment.

DC DC Switching Controllers Part Context

The LTC3780 belongs to Analog Devices' family of high-efficiency synchronous buck-boost controllers. It is designed to simplify power management in applications where traditional buck or boost converters are insufficient due to wide input voltage variations. The part integrates the necessary logic and drivers to control four external N-channel MOSFETs, reducing component count and board space compared to discrete solutions.

DC DC Switching Controllers Replacement Considerations

LTC3780EG#TRPBF: Commercial grade version in SSOP package. LTC3780IUH#PBF: Industrial grade version in QFN package. Verify pinout compatibility and thermal performance differences between SSOP and QFN packages when substituting.