LTC3773 (4)
LTC3773 is available from Analog Devices at Xecor. Designed for triple output synchronous step-down DC/DC control, the LTC3773 offers high performance, programmable power up/down tracking, and wide input voltage range (3.3V to 36V). Available in multiple package options, including 36-SSOP, it is ideal for servers, telecom, industrial power supplies, and general-purpose multiple rail DC/DC applications. Whether used in FPGA, DSP, or automotive systems, this series ensures efficiency, scalability, and robust performance for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the LTC3773 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LTC3773EUHF#TRPBF | High-Performance Step Down Controller with Triple Outputs and EP Package | QFN-38 | 6,842 | |
| LTC3773EUHF#PBF | Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking | QFN-38 | 6,776 | |
| LTC3773EG#PBF | Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking | SSOP-36 | 5,698 | |
| LTC3773EG#TRPBF | Advanced power management solution for demanding industrial systems, ensuring stable and reliable operation | SSOP-36 | 5,151 |
Key Featrues
Programmable Power Up/Down Tracking: The LTC3773 offers programmable power up/down tracking, allowing for sequential, coincident, or ratiometric tracking of output voltages. This feature ensures smooth and controlled power sequencing, which is critical in applications like servers, telecom, and industrial power supplies, where precise voltage management is required to avoid system instability or damage.
Wide Input Voltage Range (3.3V to 36V): With an input voltage range of 3.3V to 36V, the LTC3773 is highly versatile and can be used in a variety of applications, including automotive and industrial systems. This wide range ensures compatibility with multiple power sources, enhancing flexibility and reducing the need for additional voltage regulation components.
High Accuracy (±1% 0.6V VFB Accuracy): The device provides ±1% accuracy for the 0.6V feedback voltage across temperature variations. This high level of precision ensures stable and reliable output voltages, which is essential for sensitive applications like FPGA and DSP systems, where voltage fluctuations can significantly impact performance.
Phase-Lockable or Adjustable Frequency (160kHz to 700kHz): The LTC3773 supports a frequency range of 160kHz to 700kHz, which can be phase-locked or adjusted. This flexibility allows designers to optimize the switching frequency to minimize electromagnetic interference (EMI) and improve efficiency, making it suitable for noise-sensitive environments.
Current Mode Control with On-Board MOSFET Drivers: The LTC3773 utilizes current mode control with integrated MOSFET drivers, which enhances transient response and improves loop stability. This feature reduces the need for external components, simplifies design, and ensures efficient power conversion, particularly in high-current applications.
Wide Input Voltage Range (3.3V to 36V): With an input voltage range of 3.3V to 36V, the LTC3773 is highly versatile and can be used in a variety of applications, including automotive and industrial systems. This wide range ensures compatibility with multiple power sources, enhancing flexibility and reducing the need for additional voltage regulation components.
High Accuracy (±1% 0.6V VFB Accuracy): The device provides ±1% accuracy for the 0.6V feedback voltage across temperature variations. This high level of precision ensures stable and reliable output voltages, which is essential for sensitive applications like FPGA and DSP systems, where voltage fluctuations can significantly impact performance.
Phase-Lockable or Adjustable Frequency (160kHz to 700kHz): The LTC3773 supports a frequency range of 160kHz to 700kHz, which can be phase-locked or adjusted. This flexibility allows designers to optimize the switching frequency to minimize electromagnetic interference (EMI) and improve efficiency, making it suitable for noise-sensitive environments.
Current Mode Control with On-Board MOSFET Drivers: The LTC3773 utilizes current mode control with integrated MOSFET drivers, which enhances transient response and improves loop stability. This feature reduces the need for external components, simplifies design, and ensures efficient power conversion, particularly in high-current applications.
Applications
High-Performance Server Power Management: The LTC3773 is ideal for managing multiple power rails in high-performance servers, ensuring efficient and reliable power delivery to critical components such as CPUs, GPUs, and memory modules. Its triple-output synchronous step-down design and power-up/down tracking capability make it suitable for complex server architectures requiring precise voltage regulation and sequencing.
Telecom Infrastructure Power Supply: The LTC3773 is well-suited for telecom infrastructure applications, where it can provide stable and efficient power to base stations, routers, and other networking equipment. Its wide input voltage range (3.3V to 36V) and high switching frequency (up to 700kHz) enable compact and energy-efficient designs, essential for modern telecom systems.
Industrial Power Supplies: The LTC3773 is an excellent choice for industrial power supplies, offering robust performance in harsh environments. Its ability to handle high input voltages and provide multiple regulated outputs makes it ideal for powering PLCs, motor drives, and other industrial automation equipment, ensuring reliable operation under varying load conditions.
FPGA and DSP Power Solutions: The LTC3773 is perfect for powering FPGAs and DSPs, which often require multiple voltage rails with precise sequencing and tracking. Its programmable power-up/down tracking and synchronous rectification ensure efficient power delivery, minimizing energy loss and maximizing performance in high-speed digital processing applications.
Telecom Infrastructure Power Supply: The LTC3773 is well-suited for telecom infrastructure applications, where it can provide stable and efficient power to base stations, routers, and other networking equipment. Its wide input voltage range (3.3V to 36V) and high switching frequency (up to 700kHz) enable compact and energy-efficient designs, essential for modern telecom systems.
Industrial Power Supplies: The LTC3773 is an excellent choice for industrial power supplies, offering robust performance in harsh environments. Its ability to handle high input voltages and provide multiple regulated outputs makes it ideal for powering PLCs, motor drives, and other industrial automation equipment, ensuring reliable operation under varying load conditions.
FPGA and DSP Power Solutions: The LTC3773 is perfect for powering FPGAs and DSPs, which often require multiple voltage rails with precise sequencing and tracking. Its programmable power-up/down tracking and synchronous rectification ensure efficient power delivery, minimizing energy loss and maximizing performance in high-speed digital processing applications.
Popular LTC3773 Products comparison