NB637EL-LF-Z

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The NB637EL-LF-Z is a DC-DC step-down converter switch regulated power supply from ON Semiconductor. It has a wide voltage range from 3V to 24V and provides a regulated output voltage from 0.8V to 18V. The long life and reliable performance make this IC ideal for a variety of applications.

The NB637EL-LF-Z can be used for system voltage stabilization, voltage dropping, voltage stabilization, and transducer power supply. It features low voltage drop, low output ripple, short delay time and low standby current.

The NB637EL-LF-Z has a switching frequency of 300kHz and a maximum output current of 1.5A. It also provides protections against over current, overtemperature and undervoltage. The IC has a precision enable pin and mode select pins to adjust output voltage and current requirements.

The working principle of the NB637EL-LF-Z is based on switch regulated power supply. The IC uses peak current mode control to convert the input voltage to the output voltage. The voltage conversion is done by switching the current between input and output. The IC consists of an internal oscillator, high side driver, low side driver, error amplifier and voltage feedback circuits. The oscillator generates a clock signal which is used by the voltage feedback circuit to detect the output voltage. The detected voltage is compared with the reference voltage to generate an error signal which is used to adjust the output voltage. The high side and low side drivers are used to control the current flow between input and output.

The NB637EL-LF-Z is a high performance switch regulated power supply and is ideal for use in portable electronics, embedded systems, and a variety of other applications. The IC features a wide input voltage range, low voltage drop, low output ripple, short delay time and low standby current, making it an excellent choice for a wide range of applications.

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