LMR23630DRRT

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The LMR23630DRRT is a high-voltage switching regulator, designed to facilitate efficient power conversion from a DC source to a variety of voltage outputs. When compared to linear regulators, LMR23630DRRT switching regulators offer superior performance in terms of power efficiency, temperature stability, and circuit size. The device is ideal for low-power applications in the automotive, renewable energy, and consumer electronics markets, as well as many other applications in the industrial, telecom and motor control sectors.

Working Principle

For the LMR23630DRRT, power is converted through a pulse width modulation (PWM) process. The device includes an R DRIVE and CONTROL terminal, along with a number of optional input, output, and feedback pins. During operation, the R DRIVE terminal provides a switched signal to the device’s switching mechanism. Depending on the signal, the device’s switches open and close to regulate the output voltage. The CONTROL terminal allows the user to adjust the open loop gain of the device, which is proportional to its output current capability. By adjusting the output current, the user can ensure the device’s output voltage remains within the specified range.

Design Considerations

In order to optimize the performance of the LMR23630DRRT for any given application, the user must consider a number of factors when designing with the device. These factors include input voltage, output load, output voltage range, switching frequency, voltage ripple, and thermal component placement. The device’s thermal performance is largely dependent on correct component placement. For example, keeping the output capacitor as close to the device as possible can help reduce the inductance of the trace, which will reduce voltage ripple and improve system performance.

Protection Features

To protect the device’s mosfets against out of range input voltage, the LMR23630DRRT includes an input undervoltage lockout (UVLO) feature. This ensures that the input voltage remains within the specified range, which will prevent any damage to the device’s switching elements.

The device also includes an over current protection (OCP) feature, which will shut the device off if an over current situation is detected. During operation, the device monitors the output current and will shut down the device if the output current is too high. The OCP feature also includes a thermal protection circuit, which will shut down the device if the device’s temperature exceeds a set point.

Conclusion

The LMR23630DRRT is a high-efficiency, high-voltage switching regulator designed to provide reliable power conversion in a variety of applications. Its high performance, small footprint, and extensive protection features make it an ideal choice for projects requiring a low-power DC-DC converter. In order to ensure the best performance, the user must consider a number of design considerations prior to use, such as input voltage, output load, and thermal component placement.

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