LTC7821 (4)
LTC7821 is available from Analog Devices at Xecor. Designed for hybrid step-down synchronous control, the LTC7821 offers superior efficiency, low noise operation, and ±1% output voltage accuracy. Available in a 32-QFN (5x5) package, it is ideal for intermediate bus converters, high current distributed power systems, and telecom, datacom, and storage systems. Whether used in telecommunications infrastructure or data storage solutions, this series ensures high performance, scalability, and efficiency for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the LTC7821 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LTC7821IUH#PBF | Advanced switching controller for synchronous rectification and high-frequency switching applications | QFN-32 | 3,763 | |
| LTC7821EUH#PBF | DC/DC Cntrlr Single-OUT Step Down 2000kHz 32-Pin QFN EP Tube | QFN-32 | 7,032 | |
| LTC7821EUH#TRPBF | Fast switching frequency of up to kHz ensures high efficiency | QFN-32 | 8,686 | |
| LTC7821IUH#TRPBF | Advanced synchronous step-down converter with low noise and rippl | QFN-32 | 7,795 |
Key Featrues
Wide VIN Range (10V to 72V): The LTC7821 supports a broad input voltage range, making it versatile for various applications, including telecom, datacom, and storage systems. This wide range ensures compatibility with multiple power sources, enhancing its adaptability and reliability in diverse environments.
Soft Switching for Low Noise Operation: The device employs soft switching technology, which minimizes electromagnetic interference (EMI) and reduces switching noise. This feature is crucial for sensitive applications where low noise operation is essential, improving overall system performance and compliance with EMI standards.
Phase-Lockable Fixed Frequency (200kHz to 1.5MHz): The LTC7821 offers a phase-lockable fixed frequency range, allowing for precise control over the switching frequency. This capability is beneficial for synchronizing multiple converters in multiphase systems, optimizing efficiency, and reducing ripple current in high-power applications.
±1% Output Voltage Accuracy: With an output voltage accuracy of ±1%, the LTC7821 ensures stable and precise voltage regulation. This high level of accuracy is critical for maintaining the performance and reliability of sensitive electronic components, particularly in high-current distributed power systems.
Programmable CCM, DCM, or Burst Mode® Operation: The device supports multiple operational modes, including Continuous Conduction Mode (CCM), Discontinuous Conduction Mode (DCM), and Burst Mode®. This flexibility allows designers to optimize the converter for specific load conditions, improving efficiency across a wide range of operating scenarios.
Soft Switching for Low Noise Operation: The device employs soft switching technology, which minimizes electromagnetic interference (EMI) and reduces switching noise. This feature is crucial for sensitive applications where low noise operation is essential, improving overall system performance and compliance with EMI standards.
Phase-Lockable Fixed Frequency (200kHz to 1.5MHz): The LTC7821 offers a phase-lockable fixed frequency range, allowing for precise control over the switching frequency. This capability is beneficial for synchronizing multiple converters in multiphase systems, optimizing efficiency, and reducing ripple current in high-power applications.
±1% Output Voltage Accuracy: With an output voltage accuracy of ±1%, the LTC7821 ensures stable and precise voltage regulation. This high level of accuracy is critical for maintaining the performance and reliability of sensitive electronic components, particularly in high-current distributed power systems.
Programmable CCM, DCM, or Burst Mode® Operation: The device supports multiple operational modes, including Continuous Conduction Mode (CCM), Discontinuous Conduction Mode (DCM), and Burst Mode®. This flexibility allows designers to optimize the converter for specific load conditions, improving efficiency across a wide range of operating scenarios.
Applications
Intermediate Bus Converters: The LTC7821 is ideal for intermediate bus converter applications, providing high efficiency and low EMI performance. Its hybrid architecture combines soft switching charge pump topology with a synchronous step-down converter, making it suitable for power distribution systems in telecom, datacom, and industrial environments.
High Current Distributed Power Systems: The LTC7821 excels in high current distributed power systems, offering ±1% output voltage accuracy and programmable operation modes (CCM, DCM, or Burst Mode®). Its wide input voltage range (10V to 72V) and short-circuit protection make it a robust choice for demanding power distribution applications.
Telecom and Datacom Systems: The LTC7821 is well-suited for telecom and datacom systems, where its phase-lockable fixed frequency (200kHz to 1.5MHz) and CLKOUT pin for multiphase operation ensure stable and efficient power delivery. Its low noise operation and high efficiency are critical for maintaining reliable communication infrastructure.
Storage Systems: The LTC7821 is an excellent choice for storage systems, providing monotonic output voltage start-up and optional external reference for precise power management. Its ability to handle high input voltages and deliver consistent performance makes it ideal for data storage applications requiring reliable and efficient power conversion.
High Current Distributed Power Systems: The LTC7821 excels in high current distributed power systems, offering ±1% output voltage accuracy and programmable operation modes (CCM, DCM, or Burst Mode®). Its wide input voltage range (10V to 72V) and short-circuit protection make it a robust choice for demanding power distribution applications.
Telecom and Datacom Systems: The LTC7821 is well-suited for telecom and datacom systems, where its phase-lockable fixed frequency (200kHz to 1.5MHz) and CLKOUT pin for multiphase operation ensure stable and efficient power delivery. Its low noise operation and high efficiency are critical for maintaining reliable communication infrastructure.
Storage Systems: The LTC7821 is an excellent choice for storage systems, providing monotonic output voltage start-up and optional external reference for precise power management. Its ability to handle high input voltages and deliver consistent performance makes it ideal for data storage applications requiring reliable and efficient power conversion.
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