LTC3780EG#TRPBF

DC DC Switching Controllers Overview

The LTC3780EG#TRPBF is a high-efficiency, synchronous four-switch buck-boost switching regulator controller manufactured by Analog Devices Inc. It operates within a supply voltage range of 4V to 30V and supports a switching frequency between 200kHz and 400kHz. The device delivers an adjustable output voltage from 800mV to 30V with a typical accuracy of ±1%. Designed for surface mount installation, it utilizes a 24-pin SSOP package. The controller features a maximum duty cycle of 99% and maintains a typical quiescent current of 2.4mA.

DC DC Switching Controllers Feature Summary

• Supports four-switch synchronous buck-boost topology allowing input voltages higher than, lower than, or equal to the output voltage
• Enables seamless mode transitions between buck and boost operations without inductor current discontinuity
• Integrates an internal 6V LDO dedicated to driving external N-channel MOSFET gates
• Provides comprehensive protection mechanisms including foldback current limiting, soft start, and overvoltage protection

DC DC Switching Controllers Applications

• DC power distribution systems requiring wide input/output ranges
• Automotive electronics handling battery voltage fluctuations
• Telecommunications infrastructure power supplies
• High-power battery-powered devices with varying cell counts
• Industrial control systems needing robust voltage regulation

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific EG suffix indicates the commercial temperature grade variant. Ensure the TRPBF designation matches the required tape-and-reel packaging format for automated assembly processes. Cross-reference the datasheet revision history for any recent pinout or electrical specification updates prior to finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems where input voltage may fluctuate significantly above or below the target output level. It is suitable for applications demanding high efficiency across varying load conditions. Designers must account for external MOSFET selection based on thermal requirements and gate drive capabilities. Consider the 24-SSOP package dimensions for PCB layout constraints and ensure adequate thermal dissipation paths are incorporated into the design.

DC DC Switching Controllers Part Context

This component belongs to the LTC3780 family of power management integrated circuits. It serves as a specialized controller rather than a complete regulator, requiring external power switches to function. The series is engineered for complex power architectures found in industrial and automotive sectors. It complements other Linear Technology products by offering flexible topologies that adapt to dynamic voltage environments efficiently.

DC DC Switching Controllers Replacement Considerations

LTC3780EG#PBF

DC DC Switching Controllers FAQ

Does the LTC3780EG#TRPBF include internal power switches?

No, it is a controller that requires external N-channel MOSFETs to be connected for power switching.

What is the maximum duty cycle supported by this device?

The controller supports a maximum duty cycle of 99%.