SPAN02B-05

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DC-DC converters are power electronic devices that convert a constant voltage from a power source, such as a battery or utility power, to another voltage level in order to match the needs of the load. SPAN02B-05 is a digital DC-DC converter that converts between 3.0V to 5.5V input voltage to a regulated 5.0V output voltage. It is specially designed for energy efficient mobile, telecom, networking and industrial automation applications.

SPAN02B-05 features include a maximum output current of 5A, and an input current limit of 8A with 93% peak efficiency. Its wide input voltage range is designed to accommodate a variety of power input sources. The device can also detect and protect itself from over-voltage and under-voltage conditions. The output voltage accuracy is ±2%, and its embedded soft-start circuitry ensures a controlled startup. Additionally, the device features a programmable over-temperature and over-current protection, along with a low quiescent current down to as low as 95 µA.

The operating principle of the SPAN02B-05 is based on the principle of pulse width modulation (PWM). This device is a voltage mode conduction converter. When it is powered on, the internal power MOSFETs are turned on and off in a regulated cycle, called PWM. The duty cycle of the PWM cycle is regulated by the onboard integrated MCU, in order to regulate the output voltage. The duty cycle is regulated based on the input voltage, output voltage and temperature. The duty cycle is compared to the feedback voltage, and the MCU adjusts the duty cycle as required to maintain the output voltage.

The SPAN02B-05 is suitable for a variety of applications, such as cell phones, point-of-sale systems, gaming systems, medical electronic equipment, and other battery-operated applications. Its high-performance components and wide input voltage range ensure maximum efficiency and reliability in a small, compact package. Its wide range of features and its very low standby current make it ideal for energy-efficient applications.

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