LT8711 (7)
LT8711 is available from Analog Devices at Xecor. Designed for general-purpose DC/DC conversion, the LT8711 offers flexible multi-topology configurations, including synchronous buck, boost, SEPIC, ZETA, and nonsynchronous buck-boost converters, with a wide input range of 4.5V to 42V and low power consumption. Available in multiple package options such as 20-Lead TSSOP and 20-Lead 3mm x 4mm QFN, it is ideal for automotive systems, industrial supplies, and solar panel power converters. Whether used in high-efficiency power management or low-noise applications, this series ensures reliable performance, scalability, and efficiency for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the LT8711 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LT8711EUDC#PBF | Ideal for small devices requiring efficient power management | QFN-20 | 3,978 | |
| LT8711IFE#TRPBF | DC/DC Cntrlr Single-OUT Step Down/Step Up 825kHz 20-Pin TSSOP EP T/R | TSSOP-20 | 9,616 | |
| LT8711IUDC#PBF | High-performance switching controller for demanding applications | QFN-20 | 6,452 | |
| LT8711EFE#PBF | Up Synchronous Multitopology Control Switching Controllers with 42V Input Capability | TSSOP-20 | 7,153 | |
| LT8711EUDC#TRPBF | DC/DC Cntrlr Single-OUT Step Down/Step Up 825kHz 20-Pin QFN EP T/R | QFN-20 | 7,324 | |
| LT8711IFE#PBF | DC/DC Cntrlr Single-OUT Step Down/Step Up 825kHz 20-Pin TSSOP EP Tube | TSSOP-20 | 7,342 | |
| LT8711IUDC#TRPBF | DC/DC Cntrlr Single-OUT Step Down/Step Up 825kHz 20-Pin QFN EP T/R | QFN-20 | 7,847 |
Key Featrues
Wide Input Voltage Range (4.5V to 42V): This feature allows the controller to operate across a broad range of input voltages, making it highly versatile for various applications, including automotive and industrial systems. It ensures reliable performance even with fluctuating power sources, enhancing efficiency and adaptability in diverse environments.
Multitopology Configuration (Buck, Boost, SEPIC, ZETA, Buck-Boost): The ability to configure the controller for multiple topologies provides flexibility in designing power conversion systems. This feature enables optimized solutions for specific use cases, such as step-up, step-down, or combined operations, improving overall system efficiency and reducing the need for multiple components.
Automatic Low Noise Burst Mode® Operation: This feature minimizes power consumption during light load conditions by automatically switching to a low-noise burst mode. It significantly reduces quiescent current (as low as 15µA), enhancing energy efficiency and extending battery life in portable or low-power applications.
Adjustable Soft-Start with One Capacitor: The soft-start functionality prevents inrush current during startup, protecting the system and components from potential damage. This feature is particularly useful in applications requiring controlled power-up sequences, such as sensitive electronic devices or systems with high capacitive loads.
Frequency Programmability (100kHz to 750kHz) and External Clock Synchronization: The ability to program the switching frequency and synchronize it with an external clock allows for precise control over the power conversion process. This feature helps optimize performance, reduce electromagnetic interference (EMI), and integrate the controller into systems with specific timing requirements, such as communication or industrial equipment.
Multitopology Configuration (Buck, Boost, SEPIC, ZETA, Buck-Boost): The ability to configure the controller for multiple topologies provides flexibility in designing power conversion systems. This feature enables optimized solutions for specific use cases, such as step-up, step-down, or combined operations, improving overall system efficiency and reducing the need for multiple components.
Automatic Low Noise Burst Mode® Operation: This feature minimizes power consumption during light load conditions by automatically switching to a low-noise burst mode. It significantly reduces quiescent current (as low as 15µA), enhancing energy efficiency and extending battery life in portable or low-power applications.
Adjustable Soft-Start with One Capacitor: The soft-start functionality prevents inrush current during startup, protecting the system and components from potential damage. This feature is particularly useful in applications requiring controlled power-up sequences, such as sensitive electronic devices or systems with high capacitive loads.
Frequency Programmability (100kHz to 750kHz) and External Clock Synchronization: The ability to program the switching frequency and synchronize it with an external clock allows for precise control over the power conversion process. This feature helps optimize performance, reduce electromagnetic interference (EMI), and integrate the controller into systems with specific timing requirements, such as communication or industrial equipment.
Applications
Automotive Power Management: The LT8711 is ideal for managing power in automotive systems, such as infotainment systems, advanced driver-assistance systems (ADAS), and lighting controls. Its wide input voltage range (4.5V to 42V) and ability to operate in buck, boost, or buck-boost configurations make it suitable for handling the variable voltage levels in automotive environments, ensuring stable and efficient power delivery.
Industrial Power Supplies: The LT8711 is well-suited for industrial power supply applications, including factory automation, motor control, and robotics. Its multi-topology capability (buck, boost, SEPIC, ZETA) allows it to adapt to various input and output voltage requirements, while its high switching frequency (up to 825kHz) ensures compact and efficient power conversion in industrial settings.
Solar Panel Power Conversion: The LT8711 is an excellent choice for solar panel power conversion systems, where it can efficiently manage the variable output from solar panels. Its ability to handle input voltages as low as 0V (when EXTVCC > 4.5V) and its input voltage regulation feature make it ideal for maximizing energy harvest from solar arrays, even under low-light conditions.
Portable and Battery-Powered Devices: The LT8711 is perfect for portable and battery-powered devices, such as medical equipment, handheld instruments, and IoT devices. Its low quiescent current (15µA in Burst Mode operation) and wide input voltage range ensure long battery life and reliable operation, while its compact 20-QFN package makes it suitable for space-constrained designs.
Industrial Power Supplies: The LT8711 is well-suited for industrial power supply applications, including factory automation, motor control, and robotics. Its multi-topology capability (buck, boost, SEPIC, ZETA) allows it to adapt to various input and output voltage requirements, while its high switching frequency (up to 825kHz) ensures compact and efficient power conversion in industrial settings.
Solar Panel Power Conversion: The LT8711 is an excellent choice for solar panel power conversion systems, where it can efficiently manage the variable output from solar panels. Its ability to handle input voltages as low as 0V (when EXTVCC > 4.5V) and its input voltage regulation feature make it ideal for maximizing energy harvest from solar arrays, even under low-light conditions.
Portable and Battery-Powered Devices: The LT8711 is perfect for portable and battery-powered devices, such as medical equipment, handheld instruments, and IoT devices. Its low quiescent current (15µA in Burst Mode operation) and wide input voltage range ensure long battery life and reliable operation, while its compact 20-QFN package makes it suitable for space-constrained designs.
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