NCP1055P136G

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PMIC stands for Power Management Integrated Circuit and is a type of integrated circuit used for the smooth and efficient transition of power between different components in a system. The NCP1055P136G is a specialized type of PMIC from ON Semiconductor Corporation that combines an offline switcher, AC-DC converter, and global shunt regulator in one integrated circuit, allowing it to transition power efficiently, while also providing protection of the system in the event of an over-current situation.

The NCP1055P136G has two main operating functions- buck mode and boost mode. In buck mode, the part acts as an AC-DC converter, with its two integrated MOSFETs configured to switch between ground and the input voltage. This mode takes an AC input voltage, rectifies and filters it, and then produces a DC output voltage, which is adjustable via the integrated global shunt regulator. The input voltage range supported by the buck mode of the NCP1055P136G is from 4.5V to 40V, with an output voltage adjustable from 1.8V to 27V, suitable for powering a variety of loads.

The NCP1055P136G\'s boost mode operates as an offline switcher, with the integrated MOSFETs used to switch between ground and the output voltage. The boost mode is suitable for low-voltage inputs, and supports an input voltage range from 0.4V to 6V, with an adjustable output voltage of up to 40V. This wide output voltage range makes the boost mode suitable for powering high-voltage loads with a low-voltage input, such as low-voltage batteries.

The NCP1055P136G also features an internal global shunt regulator, used to adjust the output voltage of the buck and boost modes. This functionality allows the part to easily control the output voltage of the buck and boost modes, allowing it to be tailored to the needs of the system. The NCP1055P136G\'s global shunt regulator has a programmable output voltage range of 1.8V to 27V, adjustable in increments of 0.005V.

The NCP1055P136G also features over-current protection and over-temperature protection. Its over-current protection is based on the current sense monitor threshold. This threshold can be set using the external resistor, allowing the user to set the threshold to a value suitable for the application. Additionally, the part features over-temperature protection, which will shut down the part when the part temperature reaches a pre-defined threshold.

The NCP1055P136G application field encompasses numerous applications, such as in automotive, industrial, telecom and computer systems. Its wide input voltage range and adjustable output voltage, combined with a low quiescent current and high efficiency, make the NCP1055P136G suitable for powering both low-voltage and high-voltage loads. The NCP1055P136G is also suitable for distributed power systems, since it is capable of both buck and boost operation. Additionally, its integrated over-current and over-temperature protection make it a suitable choice for safety-critical applications.

In conclusion, the NCP1055P136G is a specialized type of PMIC from ON Semiconductor Corporation that combines buck and boost operation, with an adjustable output voltage, over-current and over-temperature protection. This makes the part suitable for a variety of applications, ranging from automotive to safety-critical applications. Additionally, its wide input voltage range and adjustable output voltage make it suitable for distributed power systems.

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