LT3689HMSE#PBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LT3689HMSE#PBF, an advanced synchronous step-down DC-DC switching regulator controller IC, offers breakthrough efficiency performance and a wide range of features for high power DC-DC applications where high efficiency along with transient response and flexibility are essential. It is designed for use in a wide variety of power conversion applications that require high efficiency, such as server and storage, automotive, mobile computing, LED lighting and instrumentation.

The LT3689HMSE#PBF is designed with capabilities to provide 10A continuous output current and up to 17A in step-load transient conditions. Its peak efficiency of up to greater than 94% is achieved with a 2.25MHz fixed frequency 4-switch voltage mode control system. The switching frequency is set by an internal oscillator and is adjustable via an external resistor. The controller is optimized with a low 30mV typical output voltage ripple, resulting in clean power supply operation.

The LT3689HMSE#PBF is also built with an integrated 900V MOSFET gate driver, wide input voltage range of 4.5V to 38V, over-temperature, over-current and short circuit protection, multiple operating modes and output voltage programming options. It also offers integrated loop compensation and current mode control, making it simple to use and simplifying the design process.

The LT3689HMSE#PBF can be used for a wide range of applications such as voltage regulation, high power battery charging, power conditioning, and point-of-load regulation. It can also be used in converter/regulator systems operating in step-up/step-down, buck/boost, and flyback/feedback modes, as well as for wireless charging and other applications. Furthermore, its flexibility and performance make it an ideal solution for high power DC-DC applications.

The LT3689HMSE#PBF provides a highly integrated power solution that is simple to use, flexible, and highly efficient. The controller comprises the following features:

• Integrated 900V MOSFET gate driver
• 2.25MHz fixed frequency 4-switch voltage mode control system
• Wide input voltage range of 4.5V to 38V
• Over-temperature, over-current and short circuit protection
• Multiple operating modes and output voltage programming options
• Integrated loop compensation and current mode control
• Up to 10A continuous output current
• Up to 94% peak efficiency
• 30mV typical output voltage ripple

The LT3689HMSE#PBF can be used in a variety of DC-DC applications such as DC-DC converters, switched-mode power supplies, high power battery chargers, and other power conditioning applications. It is well-suited for use in servers and storage, automotive, mobile computing, LED lighting, and instrumentation applications. Its advanced synchronous step-down DC-DC switching regulator control architecture provides high efficiency, ultra-fast transient response, and a wide range of features for high power applications.

The LT3689HMSE#PBF operates by using an oscillator to generate the switching frequency. This frequency can be adjusted via an external resistor. To achieve a high efficiency, the controller employs 4-switch voltage mode control system. The 4-switch voltage mode control enables synchronous rectification to maintain continuous conduction within the inductor while simultaneously providing synchronous rectification of the upper switch and turning off the lower switch. This synchronous rectification scheme also reduces the switching losses of an otherwise traditional buck converter.

Moreover, the wide input voltage range of 4.5V to 38V allows the LT3689HMSE#PBF to be used in a variety of DC-DC applications. It also offers multiple operating modes and output voltage programming options, enabling the user to customize the output voltage as per the application requirement. The integrated 900V MOSFET gate driver of the controller ensures the highest system efficiency and provides a wide range of flexibility in terms of design.

The LT3689HMSE#PBF features integrated loop compensation, over-temperature, over-current and short-circuit protection. It also has programmable current limit threshold, voltage tracking and margin control, soft start and adjustable frequency functions that can be utilized to fine-tune the converter output. The controller also provides a low 30mV typical output voltage ripple which ensures that the converter output is clean and reliable. Furthermore, the device is capable of providing up to 10A of continuous output with peak efficiency of greater than 94%.

Overall, the LT3689HMSE#PBF is an advanced synchronous step-down DC-DC switching regulator controller IC with a wide range of features that make it suitable for use in high power applications where high efficiency, transient response and flexibility are essential. With its integrated 900V MOSFET gate driver, wide input voltage range, multiple operating modes, and output voltage programming options, the LT3689HMSE#PBF offers a highly integrated power solution and can be used in a wide range of applications.

The specific data is subject to PDF, and the above content is for reference