LTC3851A (1)
The LTC3851A is available from Analog Devices at Xecor. Designed for synchronous step-down switching regulation, the LTC3851A offers wide VIN range (4V to 38V), ±1% output voltage accuracy, and phase-lockable fixed frequency (250kHz to 750kHz). Available in a 16-pin MSOP package, it is ideal for automotive systems, telecom systems, industrial equipment, and distributed DC power systems. Whether used in automotive or industrial applications, this series ensures high performance, efficiency, and reliability for demanding power management needs. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the LTC3851A series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LTC3851AEMSE#WTRPBF | Sync Buck Sw Reg Controller Automotive AEC-Q100 | MSOP-16 | 2,776 |
Key Featrues
Wide Input Voltage Range (4V to 38V): The LTC3851A supports a broad input voltage range, making it highly versatile for various applications, including automotive, telecom, and industrial systems. This wide range ensures reliable operation even in environments with fluctuating power supplies, enhancing system stability and performance.
±1% Output Voltage Accuracy: With precise output voltage regulation, the LTC3851A ensures consistent and reliable power delivery to sensitive components. This high accuracy minimizes voltage fluctuations, improving the overall efficiency and longevity of connected devices.
Phase-Lockable Fixed Frequency (250kHz to 750kHz): The ability to phase-lock the switching frequency allows for synchronization with external clocks, reducing electromagnetic interference (EMI) and improving compatibility in multi-regulator systems. This feature is particularly beneficial in noise-sensitive applications like telecom and industrial equipment.
Dual N-Channel MOSFET Synchronous Drive: The synchronous drive architecture enhances efficiency by reducing power losses during switching operations. This results in lower heat generation and higher energy efficiency, making the LTC3851A suitable for high-performance, power-sensitive applications.
Output Current Foldback Limiting: This feature provides protection against overcurrent conditions by reducing the output current when a fault is detected. It safeguards the regulator and connected components from damage, ensuring reliable operation in demanding environments such as automotive and distributed power systems.
±1% Output Voltage Accuracy: With precise output voltage regulation, the LTC3851A ensures consistent and reliable power delivery to sensitive components. This high accuracy minimizes voltage fluctuations, improving the overall efficiency and longevity of connected devices.
Phase-Lockable Fixed Frequency (250kHz to 750kHz): The ability to phase-lock the switching frequency allows for synchronization with external clocks, reducing electromagnetic interference (EMI) and improving compatibility in multi-regulator systems. This feature is particularly beneficial in noise-sensitive applications like telecom and industrial equipment.
Dual N-Channel MOSFET Synchronous Drive: The synchronous drive architecture enhances efficiency by reducing power losses during switching operations. This results in lower heat generation and higher energy efficiency, making the LTC3851A suitable for high-performance, power-sensitive applications.
Output Current Foldback Limiting: This feature provides protection against overcurrent conditions by reducing the output current when a fault is detected. It safeguards the regulator and connected components from damage, ensuring reliable operation in demanding environments such as automotive and distributed power systems.
Applications
Automotive Power Management: The LTC3851A is ideal for managing power distribution in automotive systems, such as infotainment systems, advanced driver-assistance systems (ADAS), and engine control units. Its wide input voltage range (4V to 38V) and high efficiency make it suitable for handling the demanding power requirements of modern vehicles, ensuring reliable operation in harsh automotive environments.
Telecom Power Supplies: The LTC3851A is well-suited for telecom systems, where it can be used to regulate power in base stations, routers, and other communication equipment. Its synchronous step-down architecture and high switching frequency (up to 750kHz) enable compact and efficient power supplies, critical for maintaining performance in space-constrained telecom installations.
Industrial Equipment Control: The LTC3851A is perfect for controlling power in industrial equipment, such as motor drives, robotics, and factory automation systems. Its ±1% output voltage accuracy and adjustable soft-start features ensure precise and stable power delivery, enhancing the reliability and performance of industrial machinery.
Distributed DC Power Systems: The LTC3851A is an excellent choice for distributed DC power systems, such as those used in data centers or renewable energy installations. Its ability to operate with a wide input voltage range and its high efficiency make it ideal for managing power distribution across multiple loads, ensuring optimal energy utilization and system reliability.
Telecom Power Supplies: The LTC3851A is well-suited for telecom systems, where it can be used to regulate power in base stations, routers, and other communication equipment. Its synchronous step-down architecture and high switching frequency (up to 750kHz) enable compact and efficient power supplies, critical for maintaining performance in space-constrained telecom installations.
Industrial Equipment Control: The LTC3851A is perfect for controlling power in industrial equipment, such as motor drives, robotics, and factory automation systems. Its ±1% output voltage accuracy and adjustable soft-start features ensure precise and stable power delivery, enhancing the reliability and performance of industrial machinery.
Distributed DC Power Systems: The LTC3851A is an excellent choice for distributed DC power systems, such as those used in data centers or renewable energy installations. Its ability to operate with a wide input voltage range and its high efficiency make it ideal for managing power distribution across multiple loads, ensuring optimal energy utilization and system reliability.
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