BD7F100HFN-LBTR

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BD7F100HFN-LBTR is a DC-DC switching regulator that is primarily used to convert a stable low voltage input DC power supply to a stable higher output voltage. The switching regulator can provide up to 1.5A of load current to the output. It is commonly used as a power source for portable electronic devices, as well as a source of power for low-noise applications. Due to its wide input voltage range and low output noise characteristics, the BD7F100HFN-LBTR is a popular choice for medical equipment, telecommunications, and embedded systems.

The switching regulator circuit is designed to operate using the flyback structure and uses a single NMOS switching transistor to control the rectifier of the output stage. This type of DC-DC switching regulator is suitable for medium to low power applications due to the efficient use of switching transistors and having the capability to operate over a wide input voltage range. The BD7F100HFN-LBTR also features an integrated protection circuit, to avoid potential damage due to overload and short circuit.

The chip is designed to be used in PWM-controlled buck topologies, with an operating frequency typically between 1kHz and 3kHz. To control the switch timing and output voltage levels, a number of input pins are integrated on the chip, namely the FB, EN, GND and the output voltage feedback pin. The voltage feedback pin enables the external reference on the chip, and is used to accurately maintain the desired output voltage. The switch is driven in an over-damped mode and is linked to an internal ramp comparator with hysteresis.

The switching frequency of the BD7F100HFN-LBTR can be adjusted by external resistor, as well as its duty cycle modulation by controlling the current in the integrated N-channel MOSFET. Additionally, the device is pin and hardware compatible with other 1A and 5A P-channel MOSFETs, making the design and integration process easier and reducing the time to market.

To ensure efficient use of power, the BD7F100HFN-LBTR is designed to provide high power density, low profile and low noise. Additionally, the output voltage can be accurately programmed in steps of approximately 2.5mV, with current levels ranging from 1.25A to 1.5A. This level of flexibility makes the BD7F100HFN-LBTR a popular choice for portable and low-noise applications.

In conclusion, the BD7F100HFN-LBTR can be used as a highly efficient DC-DC switching regulator that offers an operating frequency of up to 3kHz and is designed for use in a range of portable and low-noise applications. With its integrated protection circuits, it can be used to protect low and medium power designs from overload and short circuit damage. This, combined with its wide input voltage range and its ability to accurately maintain the desired output voltage, makes it a popular choice for medical, telecommunications and embedded system applications.

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