SC4810DIMLTRT

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The SC4810DIMLTRT is a DC-DC switching controller that operates with a 5.5V to 24V input voltage range and provides output currents up to 5A. The device includes a constant on-time pulse width modulation (PWM) control circuit and protection features such as overvoltage, undervoltage and thermal shutdown. The SC4810DIMLTRT is typically used in point-of-load (POL) applications as its fast transient response makes it suitable for low output voltage and fast transient applications.

The primary application field for the SC4810DIMLTRT is the power management of computer and networking systems, such as servers and power supplies. The device’s highvoltage and high-current capability allows it to be used in both distributed and centralized power architectures. Furthermore, since it is capable of regulating both input and output voltages, it is often used as an isolated DC-DC converter. The SC4810DIMLTRT can also be used in automotive applications, such as DC-DC converters, chargers and engine control units.

The device has an open-loop architecture, which consists of a current-mode PWM control loop and a voltage-mode control loop. The voltage-mode loop includes a soft-start function which reduces start-up inrush current and prevents over-current condition. The PWM loop is responsible for generating the gate drive signal for the power MOSFETs. The current mode control provides superior line and load regulation, as well as fast transient response.

The device also includes a cycle-by-cycle current limit circuit which protects the power switch from over-current conditions. In addition, the device includes an overvoltage protection circuit that disables the power switch if the output voltage exceeds a certain limit. The undervoltage protection circuit prevents the device from operating if the supply voltage is too low. The device also features a thermal shutdown circuit that prevents the device from overheating.

Overall, the SC4810DIMLTRT is a efficient and reliable DC-DC switching controller that can be used in a wide range of applications, such as computer and networking systems, and automotive applications. Its fast transient response and protective features makes it suitable for such applications.

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