NCP1034BCK5VGEVB

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NCP1034BCK5VGEVB devices from ON Semiconductor are monolithic step down integrated circuit (ICs) designed for offline switch mode power supply (SMPS) or Chargers which assist with the control of output voltage, current, and power. These are ideal for applications which require high efficiency conversion and a wide range of input voltage.

The NCP1034BCK5VGEVB can be used for many purposes, including handheld and portable devices such as cellular phones, tablets, single board computers, and other products. It is suitable for applications where a DC/DC converter is used for buck voltage or AC/DC SMPS is used for standard conversion.

The device can handle both high and low line inputs and comes with a built-in soft start circuit that prevents the load from being overloaded in any given input voltage level. The device also has an integrated over-voltage protection circuit which can detect when a higher than normal output voltage is reached, and then it will shut down the device and reset the system. The output voltage can be adjusted accurately with the internal voltage reference.

For complex evaluation boards, mounted with the NCP1034BCK5VGEVB, the input voltage range is from 11V to 44V and the output voltage range from 0.6V to 11V. Its switch current adaptive control helps reduce switching losses and enhances efficiency. The active components in the circuit are the MOSFET and the output Diode.

The NCP1034BCK5VGEVB can be combined with external components to provide an adjustable or fixed output voltage. With a typical input voltage of 12V and a typical output voltage of 5V, the power efficiency can be increased up to 89%. The device is also protected against over-temperature, over-loading, and short-circuit. More importantly, in case of overload condition, the device incorporates several integrated safety features for user’s safety.

The working principle of NCP1034BCK5VGEVB is based on a fast switching conversion. The input voltage is stepped down by a series of power transistors, which cycles on and off to create the output signal. A cycle-by-cycle current-limit circuit is then used to reduce the amount of current delivered to the load and to minimize energy losses. The output voltage can be adjusted manually by varying the supply voltage or current sense resistor. The device also includes several protection features such as over-temperature protection and over-voltage protection.

In summary, NCP1034BCK5VGEVB devices are a versatile step down switch mode power supply IC designed for DC/DC and AC/DC (off-line) SMPS applications. It is typically used for devices where a DC/DC buck voltage converter or AC/DC SMPS is required for standard conversion. It is capable of supplying up to 89% of efficiency with ± 0.6% accuracy and faster dynamic response. It is also protected against over-temperature, over-loading, and short-circuit, making it an ideal solution for portable, handheld, and other products and evaluation boards.

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