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LT8643SIV#PBF
+Lista de MateriaisIC REG BUCK ADJUSTABLE 6A 24LQFN
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FabricanteAnalog Devices Inc.
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Peça do Fabricante #LT8643SIV#PBF
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Ficha Técnica LT8643SIV#PBF DataSheet
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Pacote LQFN-24
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Especificações
| Atributo | Valor |
| Package / Case | Tray |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.4V |
| Voltage - Input (Max) | 42V |
| Voltage - Output (Min/Fixed) | 0.97V |
| Voltage - Output (Max) | 42V |
| Current - Output | 6A |
| Frequency - Switching | 200kHz ~ 3MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features include a wide input voltage range from 3V to 42V, a programmable switching frequency from 200kHz to 3MHz, and a low dropout mode to enhance efficiency at lower loads. The LT8643SIV#PBF also includes soft-start, power good signal, and short-circuit protection to ensure reliability and robust performance in various applications.
Its compact 4mm x 4mm LQFN package enhances its suitability for space-constrained designs. The combination of high efficiency, low EMI, and robust protection features make the LT8643SIV#PBF an excellent choice for automotive, industrial, and other demanding applications requiring reliable power regulation solutions.
Equivalent
1. Texas Instruments TPS56637: A synchronous buck converter with similar features.
2. Maxim Integrated MAX20068: Offers comparable efficiency and output current capability.
3. Microchip Technology MCP16331: Another synchronous buck converter with similar functionality.
4. ON Semiconductor NCP1117: A low-dropout regulator with similar output capabilities.
These alternatives depend on specific design requirements such as input voltage range, output current, and package type.
Features
The LT8643SIV#PBF utilizes Silent Switcher® 2 architecture, which minimizes electromagnetic interference (EMI) and enhances efficiency. It also includes features such as output voltage tracking, precision enable, and power good flag for better system integration. The fast minimum on-time of 35ns allows for high step-down ratios even at high frequencies.
Additional features include internal compensation, a wide operating temperature range, and protection features like undervoltage lockout and thermal shutdown. The device is housed in a compact 4mm x 4mm LQFN package, making it suitable for space-constrained applications.
Pinout
Key functions of the LT8643SIV#PBF include:
- It operates from an input voltage range of 3.4V to 42V.
- Capable of delivering up to 6A output current.
- Features a silent switcher architecture to minimize EMI.
- Supports a fast switching frequency, adjustable up to 3MHz.
- Offers low quiescent current for efficient operation in light load conditions.
- Includes features like internal compensation, soft-start, output tracking, and power good flag.
The pin configuration and function include inputs for VIN, SW, BST, GND, and VOUT, among others, facilitating its integration into various power management systems. For detailed pin functions, it’s advisable to refer to the official datasheet provided by Analog Devices.
Manufacturer
Application
1. Automotive Systems: Used in infotainment, advanced driver-assistance systems (ADAS), and lighting.
2. Industrial Equipment: Suitable for factory automation and control systems.
3. Telecommunications: Powers networking devices and base stations.
4. Consumer Electronics: Utilized in devices requiring efficient power management, such as laptops and tablets.
5. Medical Devices: Supports portable and diagnostic equipment that demand stable power delivery.
6. Aerospace and Defense: Employed in avionics and communication systems.
Its features, such as fast transient response and compact size, make it versatile for various applications requiring reliable power conversion.