NCP1201P60

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NCP1201P60, from ON Semiconductor, is a low-cost, high-performance pulse width modulation (PWM) converter for use in AC/DC, offline switchers and related applications. It is designed for highly efficient, low ripple operation with tightly regulated output characteristics. This device includes an integrated scale transformer (IST), which allows for low profile applications, reducing noise and EMI. It is available in a small 8 pin SOIC package and is capable of delivering up to 3A of continuous current with minimum ripple.

NCP1201P60 is well suited for a variety of power supply applications including AC/DC mains-fed adapters, low DC voltage power supplies, negative voltage converters, and switching regulators. In addition, it can be used as a PWM controller for buck, boost, and flyback topologies. Its high efficiency and low input ripple enable it to operate in applications where tight line-load regulation is necessary. It also offers complete on-chip protection for short-circuit and over-temperature conditions.

The NCP1201P60 enables users to achieve leading efficiencies and tight line regulation in their power supply designs. It provides low voltage, high current output capabilities and operates with a wide input voltage range from 36V - 57V. The device offers primary side control with a peak current programmable via external resistor for fast transient response. It offers output voltage programming with external voltage divider and feedback circuitry, making it suitable for low voltage, switched mode power supplies.

The NCP1201P60 comprises of an 800V high voltage power MOSFET driving an integrated scale transformer (IST). The IST provides better soft-start performance and reduce EMI due to reduced coupling capacitance. This helps keep high frequency noise under control. The on-chip protection includes current sensing and current limiting with fast response. The device controls the output voltage of the converter, regulating output voltage against input voltage and load variations. The device can also implement pulse frequency modulation (PFM) which helps reduce average current consumed from the input source and thus improves overall efficiency of the system.

In summary, NCP1201P60 is an ideal PWM controller for AC/DC, offline switchers and related applications. It offers fast transient response, high efficiency and low ripple performance. The device provides complete on-chip protection for short-circuit and over-temperature conditions and primary side control with a peak current programmable via external resistor for fast transient response. In addition, it also offers output voltage programming with external voltage divider and feedback circuitry, which makes it suitable for low voltage, switched mode power supplies.

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