Overview
The LTC3780EG#TRPBF is a high-performance, synchronous buck-boost DC-DC controller from Analog Devices (ADI, formerly Linear Technology). The device can operate stably when the input voltage is higher, lower or equal to the output voltage without changing modes, making it ideal for battery-powered devices, industrial power supplies, automotive electronics, and communication systems. The LTC3780EG#TRPBF uses an advanced current mode control architecture to provide high-efficiency power conversion and integrates multiple protection functions to ensure system stability and reliability.

Specifications
parameter | Numeric |
Input voltage range | 4V to 36V |
Output voltage range | Adjustable 0.8V to 34V |
Maximum output current | 10A (depending on external MOSFET) |
Conversion efficiency | Up to 98% |
Working Mode | Synchronous buck-boost |
Switching frequency | 200kHz to 400kHz |
Control Architecture | Current Mode Control |
Protection function | Overcurrent, overtemperature, short circuit protection |
Package Type | 20-pin SSOP |
Operating temperature range | -40°C to +125°C |
LTC3780EG#TRPBF Highlights
Seamless Buck-Boost Conversion
The device operates with input voltages above, below or equal to the output voltage without switching modes, making it ideal for battery-powered and industrial power applications.
Up to 98% efficiency
adopts synchronous rectification design to minimize power loss and improve system energy efficiency, especially suitable for high power applications.
Wide adjustable output voltage range The output voltage range is
8V to 34V through external resistors to meet different load requirements.
The high power drive capability
LTC3780EG#TRPBF uses an external MOSFET design and can select the appropriate power level according to the requirements to achieve output currents up to 10A or higher.
Flexible switching frequency control
supports adjustable switching frequency from 200kHz to 400kHz, allowing users to optimize efficiency and EMI (electromagnetic interference) performance based on application requirements.
Integrated multiple protection functions
Built-in over-current protection, over-temperature protection and short-circuit protection functions ensure the safety and long-term reliability of the system.
The compact package
adopts 20-pin SSOP package , which combines high performance with small size design and is suitable for space-constrained applications.
Application Areas
The LTC3780EG#TRPBF is widely used in the following fields due to its high efficiency, seamless buck-boost conversion capability and high reliability:
The battery-powered system
is suitable for power management of lithium batteries, lead-acid batteries and supercapacitors to achieve efficient charge and discharge control.
Industrial power supplies
are suitable for industrial automation applications such as smart grid, motor control, and programmable logic controllers (PLC).
Automotive electronics
is suitable for regulated power supply of on-board electronic devices such as car audio, electric seats, LED lighting, and autonomous driving systems.
Communication systems
provide stable and efficient power conversion solutions in applications such as base stations, telecommunication equipment, and servers.
Solar energy and energy storage systems
are suitable for photovoltaic control, energy storage inverters, improving energy conversion efficiency and optimizing battery life.
Comparative Analysis: LTC3780EG#TRPBF vs. Other Buck-Boost Controllers
Features/Specifications | LTC3780EG#TRPBF | Other Buck-Boost Controllers on the Market |
Input voltage range | 4V to 36V | 5V to 30V |
Output voltage range | 0.8V to 34V | 1V to 28V |
Maximum output current | 10A (depending on external MOSFET) | 5A to 8A |
Conversion efficiency | Up to 98% | 85%-95% |
Switching frequency | 200kHz to 400kHz | 100kHz to 300kHz |
Working Mode | Synchronous buck-boost | Boost or buck mode needs to be switched |
Package Type | 20-pin SSOP | QFN, TSSOP |
LTC3780EG#TRPBF has obvious advantages in input voltage range, output voltage range, conversion efficiency and operating mode, and is particularly suitable for application scenarios that require seamless buck-boost conversion.
Manufacturer introduction: Analog Devices (formerly Linear Technology)
Analog Devices (ADI) is a leading global high-performance analog semiconductor company, focusing on signal processing, power management and data conversion technology. LTC3780EG#TRPBF is a member of its high-performance DC-DC controller series. With its efficient buck-boost conversion and wide range of applications, it has become one of the star products in the power management industry.
Why Choose LTC3780EG#TRPBF?
Supports seamless buck-boost conversion without switching modes
Up to 98% efficiency, reducing energy consumption
Supports high current output up to 10A
Flexible voltage adjustment range to suit different applications
Built-in comprehensive protection mechanism to ensure stable system operation
The LTC3780EG#TRPBF is suitable for a variety of systems requiring efficient energy conversion and is ideal for high performance power management applications.
FAQ
Q1: Does the LTC3780EG#TRPBF support synchronous rectification?
A: Yes, the LTC3780EG#TRPBF uses a synchronous rectification architecture to improve conversion efficiency and reduce power consumption. Its built-in high-efficiency MOSFET driver can effectively reduce diode conduction losses and improve overall power management performance. In addition, the device supports up to 98% conversion efficiency, making it suitable for high power density applications such as industrial equipment and communication power supplies.
Q2: Is this controller suitable for automotive electronics?
A: Yes, the LTC3780EG#TRPBF has a wide input voltage range and high reliability, suitable for automotive power supply systems, such as 12V or 24V in-vehicle electronic devices. It can work stably within a wide input voltage range and has the ability to resist transient voltages, ensuring reliable operation in harsh environments. In addition, the controller meets automotive-grade application standards and is suitable for car audio, navigation systems, battery management, and other in-vehicle power conversion needs.
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