LTC3780IG

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LTC3780IG

Switching Voltage Regulators LTC3780 - High Efficiency, Synchronous, 4-Switch Buck-Boost Controller

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사양

개요

Description

The LTC3780IG is a high-performance, synchronous step-up (boost) DC-DC converter designed by Analog Devices. It features a wide input voltage range, typically from 3V to 32V, making it suitable for various applications, including battery-powered devices and industrial equipment. The LTC3780IG can deliver up to 2A of output current, with an adjustable output voltage ranging up to 60V.
Key features include high efficiency (up to 95%), low quiescent current, and built-in soft-start, which helps in reducing inrush current during startup. The device employs an internal switch architecture, reducing the need for external components and simplifying design. Additionally, it supports a variety of protection features, including overvoltage, overcurrent, and thermal shutdown, enhancing system reliability.
The LTC3780IG is ideal for applications in LED drivers, power management systems, and portable electronics, where space and efficiency are critical. Its ease of use and robustness make it a popular choice among engineers designing high-efficiency power solutions.

Features

The LTC3780IG is a high-performance synchronous boost converter primarily designed for applications requiring a high efficiency and wide input voltage range. Key features include:
1. Input Voltage Range: Operates from 2.5V to 30V, making it suitable for various battery and power source configurations.
2. Output Voltage: Adjustable output voltage capable of delivering up to 60V.
3. High Efficiency: Achieves efficiencies exceeding 95%, minimizing heat generation and enhancing battery life.
4. Current Limiting: Built-in current limiting to protect against overload conditions.
5. Soft-Start: Integrated soft-start feature reduces inrush current during startup.
6. Synchronous Operation: Utilizes synchronous rectification for improved efficiency.
7. Built-in Switches: Contains internal power switches, reducing component count and footprint.
8. Frequency Options: Operates at a selectable frequency of 250kHz or 500kHz, allowing for optimized performance based on application needs.
9. Thermal Protection: Features thermal shutdown to prevent overheating.
These features make the LTC3780IG ideal for battery-powered devices, LED drivers, and other applications needing efficient voltage boosting.

Package

The LTC3780IG is packaged in a 20-lead HTSSOP (Thin Shrink Small Outline Package) with an exposed pad for improved thermal performance.

Pinout

The LTC3780IG is a high-performance DC-DC converter IC with a pin count of 20. It is primarily used for step-up (boost) applications.
Key functions of the LTC3780 include:
- Adjustable output voltage from 2.5V to 32V.
- High efficiency (up to 96%).
- Built-in switch and synchronous rectification.
- Current mode control for improved transient response.
- A wide input voltage range, typically from 3V to 30V.
- Features such as soft start, overvoltage protection, and thermal shutdown.
- Supports external components for voltage feedback and compensation.
The device is suitable for applications in battery-powered devices, LED drivers, and portable electronics. Always refer to the latest datasheet for detailed specifications and application guidelines.

Manufacturer

The LTC3780IG is manufactured by Analog Devices, Inc. (ADI), a global semiconductor company headquartered in Norwood, Massachusetts, USA. Analog Devices specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company is known for its products used in a wide range of applications, including automotive, communications, industrial, and consumer electronics. It focuses on innovation and engineering excellence, offering solutions for signal processing, power management, and data conversion. Analog Devices serves various markets by providing advanced technologies that enhance performance and efficiency in electronic systems.

Application

The LTC3780IG is a versatile boost converter primarily used in applications such as solar power systems, battery-powered devices, LED drivers, and automotive power supplies. It efficiently steps up voltage from low voltage sources to higher levels, making it ideal for powering high-voltage circuits from batteries or renewable energy sources. Its compact design and high efficiency also make it suitable for portable electronics, industrial equipment, and telecommunications.

Equivalent

The LTC3780IG is a step-up (boost) DC-DC converter. Equivalent products include:
1. TPS61030 (Texas Instruments)
2. MAX757 (Maxim Integrated)
3. LT1302 (Analog Devices)
4. LM2577 (Texas Instruments)
5. MT3608 (Monolithic Power Systems)
These alternatives provide similar functionality in boosting voltage and may differ in specifications like output current, efficiency, and package type. Always check datasheets for specific requirements.

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UPS는: 배송 비용은 $25-$45 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.

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EMS는: 배송 비용은 $30-$50 (0.5kg)에서 7-15 영업일의 추정적 배달 시간을 제공합니다.

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