NCP1377BPG

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The NCP1377BPG is a synchronous buck regulator with a 5V reference for applications that require a step-down converter in AC/DC and offline switching. It features a built-in synchronous rectifier which significantly reduces the power dissipation in the output stage and improves the converter\'s energy efficiency. The IC also features a wide range of operating parameters such as input voltage range, operating frequency, and current limit settings. In addition, the device provides a variety of protection features including over-temperature, over-voltage, and overload protection.

The NCP1377BPG operates in the buck mode, where it converts the input voltage to a lower voltage output. The device has a fixed 5V reference, which enables it to output a fixed output voltage. The input voltage can range from 4.5V to 28V, allowing the device to be used in a wide range of AC/DC and offline switching applications. The operating frequency can be programmed from 300 kHz to 1.2 MHz, allowing for high efficiency even at low output voltages. The current limit can also be programmed up to 5A, allowing for high current applications.

The synchronous rectifier on the NCP1377BPG reduces power dissipation by allowing the output stage to switch at close to zero current. This improves the converter’s efficiency by eliminating the linear power loss of a conventional diode rectifier, while at the same time providing high speed switching to reduce noise and scope jitter. The device also provides a variety of protection features to ensure safe and reliable operation, including over-temperature, over-voltage, and overload protection. The IC also features a low-voltage reset output which can be used to reset the microprocessor in case of an over voltage or over temperature fault.

The NCP1377BPG is a highly efficient and versatile synchronous buck regulator with a 5V reference, suitable for a wide range of AC/DC and offline switching applications. It features a built-in synchronous rectifier for improved efficiency, programmable operating frequency, and many protection features for safe and reliable operation. The device is offered in a SO-8 package, with a wide input operating voltage range, and a wide range of output current and operating frequencies.

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