Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tube |
| Part Status | Obsolete |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive and Negative (Dual Rail) |
| Topology | Boost, Cuk, Flyback, SEPIC |
| Output Type | Adjustable |
| Number of Outputs | 2 |
| Voltage - Input (Min) | 2.1V |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | ±1V |
| Voltage - Output (Max) | ±40V |
| Current - Output | 1.3A |
| Frequency - Switching | 1.2MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Tổng quan
Description
The LT3471EDD is a dual-channel, high-efficiency DC-DC converter designed by Linear Technology, now part of Analog Devices. It features two independent switching regulators, each capable of boosting or inverting voltages, making it versatile for various power supply applications. The device operates from a wide input voltage range and supports output voltages up to 40V. It includes features like internal power switches, soft-start capability, and frequency synchronization.
The LT3471EDD is known for its compact design, housed in a thermally enhanced DFN package, which is crucial for space-constrained applications. It offers low quiescent current, which helps in extending battery life in portable devices. The built-in protection features, such as over-temperature shutdown and current limiting, enhance its reliability. Its high switching frequency allows the use of small external components, reducing overall solution size. Common applications include powering OLED displays, LED drivers, and other portable electronic devices requiring efficient and compact power management solutions.
The LT3471EDD is known for its compact design, housed in a thermally enhanced DFN package, which is crucial for space-constrained applications. It offers low quiescent current, which helps in extending battery life in portable devices. The built-in protection features, such as over-temperature shutdown and current limiting, enhance its reliability. Its high switching frequency allows the use of small external components, reducing overall solution size. Common applications include powering OLED displays, LED drivers, and other portable electronic devices requiring efficient and compact power management solutions.
Equivalent
The LT3471EDD is a dual channel, high-efficiency DC/DC converter. Equivalent products include the TPS61088 from Texas Instruments, the MAX77324 from Maxim Integrated, and the ADP2301 from Analog Devices. These alternatives offer similar functionalities, such as step-up DC/DC conversion and high efficiency, but specifics like voltage ratings and package types should be checked to ensure compatibility.
Features
The LT3471EDD is a dual-channel DC/DC converter designed by Analog Devices (formerly Linear Technology). Key features include:
1. Dual Converter Channels: It integrates two independent converters, allowing for multiple applications such as boost, SEPIC, or inverting configurations.
2. Wide Input Voltage Range: Operates efficiently with an input voltage range from 2.5V to 25V, making it versatile for various power sources.
3. Output Voltage: Capable of generating a wide range of output voltages depending on the external components used.
4. High Efficiency: Designed to maintain high efficiency across a wide load range, which helps in reducing power loss and heat.
5. Compact Package: Available in a compact 10-lead DFN package, making it suitable for space-constrained applications.
6. Switching Frequency: Programmable switching frequency up to 2.5 MHz, allowing for applications that require a small external component size.
7. Protection Features: Built-in features such as soft-start, over-current protection, and thermal shutdown to enhance reliability.
8. Low Quiescent Current: Offers low quiescent current, optimizing it for battery-powered applications.
The LT3471EDD is widely used in portable electronics, telecommunications, and industrial applications due to its flexibility and robust performance.
1. Dual Converter Channels: It integrates two independent converters, allowing for multiple applications such as boost, SEPIC, or inverting configurations.
2. Wide Input Voltage Range: Operates efficiently with an input voltage range from 2.5V to 25V, making it versatile for various power sources.
3. Output Voltage: Capable of generating a wide range of output voltages depending on the external components used.
4. High Efficiency: Designed to maintain high efficiency across a wide load range, which helps in reducing power loss and heat.
5. Compact Package: Available in a compact 10-lead DFN package, making it suitable for space-constrained applications.
6. Switching Frequency: Programmable switching frequency up to 2.5 MHz, allowing for applications that require a small external component size.
7. Protection Features: Built-in features such as soft-start, over-current protection, and thermal shutdown to enhance reliability.
8. Low Quiescent Current: Offers low quiescent current, optimizing it for battery-powered applications.
The LT3471EDD is widely used in portable electronics, telecommunications, and industrial applications due to its flexibility and robust performance.
Pinout
The LT3471EDD is a dual-channel DC/DC converter produced by Analog Devices. It comes in a 10-lead (pin) DFN package. This device includes two independent switching regulators: one step-up (boost) converter and one inverting converter, enabling it to generate both positive and negative supply voltages from a single input voltage source. The key functions of the pins are as follows:
1. Vin: Input voltage supply for both converters.
2. SHDN1/SHDN2: Shutdown pins for controlling each channel independently.
3. SW1/SW2: Switch pins for the boost and inverting converters, respectively.
4. FB1/FB2: Feedback pins used to set the output voltage for each channel.
5. GND: Ground connection.
6. Vout1/Vout2: Output voltage pins for each converter.
The LT3471EDD is suitable for applications requiring dual outputs and is often used in systems requiring both a positive and negative supply, like powering op-amps or other analog signal processing components.
1. Vin: Input voltage supply for both converters.
2. SHDN1/SHDN2: Shutdown pins for controlling each channel independently.
3. SW1/SW2: Switch pins for the boost and inverting converters, respectively.
4. FB1/FB2: Feedback pins used to set the output voltage for each channel.
5. GND: Ground connection.
6. Vout1/Vout2: Output voltage pins for each converter.
The LT3471EDD is suitable for applications requiring dual outputs and is often used in systems requiring both a positive and negative supply, like powering op-amps or other analog signal processing components.
Manufacturer
The LT3471EDD is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that designs and manufactures a wide range of analog, mixed-signal, and digital signal processing integrated circuits. The company serves various industries, including communications, healthcare, automotive, industrial, and consumer electronics. They are known for providing high-performance solutions for complex engineering challenges, focusing on innovation and technological advancement.
Application
The LT3471EDD is a dual-output DC/DC converter IC widely used in applications requiring efficient power conversion. Key application areas include powering TFT LCD displays, OLED panels, and portable devices, where it provides regulated positive and negative voltage outputs. It is ideal for battery-powered devices due to its high efficiency and low quiescent current. Additionally, it finds use in telecommunications and industrial systems for generating isolated or non-isolated bipolar power supplies. Its compact design and the ability to operate at high frequencies make it suitable for space-constrained applications, including medical devices and wearable technology. The LT3471EDD's versatility in handling different voltage requirements makes it a popular choice for various electronic designs.
Package
The LT3471EDD is a dual-channel step-up DC/DC converter from Analog Devices, formerly Linear Technology, and it comes in a 10-lead DFN (Dual Flat No-Lead) package.
