NCV885301D1R2G

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The NCV885301D1R2G is a DC/DC switching controller from the PMIC-Voltage Regulators-DC DC Switching Controllers family. It is used to control the power of a DC/DC buck type converter, which is a type of switching power supply that regulates power from a DC input to a DC output. It also offers improvements in efficiency and power density.The NCV885301D1R2G has an external On/Off control, undervoltage lockout, cycle-by-cycle current limiting and thermal shutdown protection. It also has an adjustable soft-start and an adjustable over voltage protection. The soft-start feature allows the output voltage to ramp up gradually. The over voltage protection protects the output from excessive voltage.The main application fields of the NCV885301D1R2G include automotive electronics, telecom equipment, LED lighting, industrial and medical machines. The controller provides system designers with a cost-effective way to implement a high performance and accurate low load current DC/DC buck converter.The NCV885301D1R2G has two pins for an external voltage reference, and two pins for setting the failure flag state. The high-side driver IC pin has a CMOS open-drain logic to minimize the noise of the driver. The overcurrent sensing circuitry provides current limiting, which helps protect the MOSFETs from over current conditions.The working principle of the NCV885301D1R2G is based on pulse width modulation (PWM) technique. The integrated circuit continuously switches the power MOSFETs at high frequency to produce an output voltage that is proportional to the input voltage. The duty cycle of the square wave is modulated based on the reference voltage. The load-line is coupled and monitored by the voltage divider.The NCV885301D1R2G offers high efficiency, wide operating temperature range and integrated filtering network. Its precise current limitation, noise immunity and fast turn-off time make it ideal for medium power applications. The remote sense and compensation features help reduce the output voltage ripple over the load variations.In conclusion, the NCV885301D1R2G DC/DC switching controller provides designers with an efficient, accurate and cost-effective way to implement a reliable system. It is specifically designed for automotive electronics, telecom equipment, LED lighting, industrial and medical equipment applications. It provides robust protection against current and voltage conditions, improved efficiency and noise immunity.

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