LT3471EDD

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LT3471EDD

IC REG MULT CONFG ADJ DL 10DFN

  • Производитель
  • Мфр. Часть #LT3471EDD
  • Пакет DFN-10
  • Лист данных
  • В наличии6769

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Спецификации

Package Tube
ProductStatus Obsolete
Function Step-Up, Step-Up/Step-Down
OutputConfiguration Positive and Negative (Dual Rail)
Topology Boost, Cuk, Flyback, SEPIC
OutputType Adjustable
NumberofOutputs 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
SynchronousRectifier No
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 10-WFDFN Exposed Pad

Обзор

Description

The LT3471EDD is a dual-channel, high-efficiency DC/DC converter manufactured by Analog Devices. It is designed to operate as both a step-up (boost) and inverting regulator, making it versatile for various power supply applications. The device is housed in a compact DFN package, enhancing thermal performance and reducing board space.
Key features include:
1. Wide Input Voltage Range: Supports a broad input voltage range, typically from 2.4V to 16V, allowing flexibility for different power sources.

2. Output Configurations: Capable of generating positive and negative voltages, useful in diverse circuit needs, such as powering sensors or interfaces that require dual polarities.
3. High Efficiency: Designed for efficiency, reducing heat generation and power losses, which is crucial in battery-powered and portable devices.
4. Protection Features: Includes components to prevent damage, such as overvoltage and thermal shutdown protection.
5. Compact Design: The small form factor makes it suitable for space-constrained applications, improving design flexibility.
The LT3471EDD is ideal for tasks requiring efficient power conversion with minimal space and is adaptable to a variety of electronic designs.

Features

The LT3471EDD is a dual-channel DC/DC converter from Analog Devices, designed for compact and efficient power supply solutions. Key features include:
1. Dual Output: It contains two independent converters, allowing it to manage multiple power rails efficiently.
2. Wide Input Voltage Range: It operates from 2.5V to 25V, making it versatile for various applications.
3. High Efficiency: The converter is optimized for high efficiency, which helps minimize heat generation and enhances battery life in portable devices.
4. Adjustable Switching Frequency: The device offers adjustable switching frequencies from 250kHz to 2.5MHz, enabling designers to optimize for size and efficiency.
5. Integrated Power Switches: It includes internal power switches, which reduce the need for external components and simplify the design process.
6. Low Shutdown Current: It features a low shutdown current of less than 1µA, which is beneficial for battery-powered applications.
7. Compact Package: Available in a 10-lead DFN package, it is suitable for space-constrained applications.
These features make the LT3471EDD an excellent choice for applications requiring dual-output power supply solutions with high efficiency and flexibility.

Package

The LT3471EDD is a dual, step-up DC/DC converter integrated circuit by Analog Devices, packaged in a 10-lead (3mm × 3mm) DFN (Dual Flat No-Lead) package. This package type is suitable for applications requiring a compact footprint and efficient thermal performance.

Pinout

The LT3471EDD is a dual high-efficiency DC/DC converter with a total of 10 pins. It is designed to provide two independent switching regulators in a single package. Here is a brief overview of the pin functions:
1. SW1 & SW2: These are the switch pins for the first and second channels, respectively. They connect to the inductor and carry the input voltage.
2. BOOST1 & BOOST2: These pins are used for the boost capacitor connection to provide the necessary gate drive voltage for the internal switches.
3. FB1 & FB2: These are the feedback pins for the first and second channels. They sense the output voltage and regulate it to the desired level.
4. SHDN1 & SHDN2: Shutdown pins for each channel. Pulling these pins low disables the respective channel, reducing quiescent current.
5. VIN: The input supply pin for both channels, providing the DC voltage necessary for operation.
6. GND: This is the ground pin, serving as the reference point for all internal circuits.
Each pin serves a crucial role in ensuring the efficient operation of the LT3471EDD as part of a power management system.

Manufacturer

The LT3471EDD is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in designing and manufacturing analog, mixed-signal, and digital signal processing integrated circuits. The company serves a wide range of industries, including automotive, communications, consumer electronics, healthcare, and industrial markets. Analog Devices is known for providing solutions that improve the performance and efficiency of electronic devices and systems.

Application

The LT3471EDD is a dual step-up DC/DC converter designed for applications requiring compact power solutions with high efficiency. It is commonly used in small to medium-sized electronic devices, including portable medical instruments, battery-powered equipment, and handheld devices. Its features make it suitable for generating positive and negative voltages required in LCD bias supplies, OLED displays, and sensor power supplies. The device's ability to handle dual outputs and its compact packaging also make it ideal for use in space-constrained applications where efficient power conversion is crucial.

Equivalent

The LT3471EDD is a dual channel DC/DC converter. Equivalent products might include:
1. LM2733 by Texas Instruments
2. MIC23303 by Microchip Technology
3. TPS61093 by Texas Instruments
4. MAX1703 by Maxim Integrated
These alternatives vary in features and specifications, so ensure compatibility with your specific application requirements. Always verify electrical characteristics, package type, and pin configuration before substituting.

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