LTC3619BEDD#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

DC-DC switching regulators are a type of power converter that accept an input voltage, regulate it for the purpose of supplying the correct voltage to downstream components, and provide protection from power malfunctions. The LTC3619BEDD#PBF is a high-current synchronous step-down (buck) DC-DC switching regulator that is designed to deliver a maximum current of 8A making it suitable for usage in high power applications. It is a Versatile, Automotive Switch-Mode Regulator with Constant-On-Time Control and Direct Regen-Diode Current Sensing.

The LTC3619BEDD#PBF is comprised of an internal control system, an input voltage range of 2.25V to 36V, an output voltage range of 0.8V to VIN, an integrated high and low-side MOSFETs, and its switching frequency is programmable from 200kHz to 2.2MHz. It offers many features such as Synchronizable Constant On-time Control, adjustable switching frequency, internal soft-start, thermal shutdown, current limit protection, and programmable slew rate. Additionally, it has an integrated spread spectrum for EMI reduction. The package is 9 x 9mm, so it takes up less board space.

The application fields of LTC3619BEDD#PBF are industrial processes, automotive, medical, and automation applications. It is designed to provide solutions for 12V to 24V automotive and industrial voltage rails, point of load regulation, and high-efficiency, very low output voltage applications. It is also commonly used in vehicles, in programs such as adaptive cruise control and autonomous driving, due to its high power and low noise performance. The wide input voltage range of 2.25V to 36V enables the LTC3619BEDD#PBF to be used in many different environments and applications.

The working principle of the LTC3619BEDD#PBF is based on Constant On-Time (COT) control in which the regulator keeps the same amount of time “ON” during each switching cycle. This control method eliminates current sense resistors and also provides precise output voltage regulation. The COT control also improves efficiency as the indicator does not require any additional current sensing circuitry. The LTC3619BEDD#PBF goes through an ON state, and a regenerative state, which is called the regenerative diode current sensing (RDCS). When calling RDCS, the oscillator runs at twice the normal frequency.

The LTC3619BEDD#PBF also includes a Built-in Spread Spectrum Mode, which helps reduce electromagnetic interference. The Spread Spectrum Mode is activated by setting the SS pin high. It operates within a 7.5% frequency spread range and the input voltage must be above 3.6V for the Spread Spectrum Mode to be enabled. Furthermore, the LTC3619BEDD#PBF also has an internal soft-start and current limit circuit that helps it to provide safe and reliable power.

In summary, the LTC3619BEDD#PBF is a high-current synchronous step-down DC-DC switching regulator that is designed to deliver a maximum current of 8A making it suitable for usage in high power applications. It is most commonly used in industrial processes, automotive, medical, and automation applications, and its features make it an ideal choice for a wide range of applications. Its working principle is based on constant on-time control, and it has a built-in spread spectrum mode to reduce electromagnetic interference. Finally, it also has an internal soft-start and current limit circuit that helps it to provide safe and reliable power.

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