FAN23SV65AMPX

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FAN23SV65 is a PMIC (Power Management Integrated Circuit), which provides optimized voltage regulation with high efficiency and improved power supply dynamic response. FAN23SV65 is a DC DC switching regulator, which uses pulse width modulation (PWM) control to regulate the output voltage. Unlike a linear regulator, which can only reduce the output voltage, a switching regulator can both raise and lower the output. It also has a much higher switching frequency than a linear regulator, and thus better power efficiency.

The FAN23SV65 is a monolithic, non-synchronous, buck switching regulator. It is designed for high-efficiency and low cost operation using low external component count. The device has a wide input voltage range from 3.3V to 15V and a wide output voltage range from 0.8V to 5V. It is capable of providing up to 1A continuous output current and can be used for a variety of applications, including managing the power demands of microprocessors, FPGAs, DSPs, low-voltage sourcing, and automotive power supplies.

The FAN23SV65 uses a fixed switched frequency of 500kHz to minimize the size of components in the power stage. It has an enable/disable function that allows the device to be disabled externally by low voltage (down to 0.8V) or pulled high to enable the output. The enable time is internally set to a few μs and doesn’t require external components.

The FAN23SV65 features adjustable over-voltage protection, current limiting, and thermal shutdown. The device also features a Soft-Start (SS) and brown-in, brown-out protection, so that the output voltage reaches the nominal value quickly and remains steady during a transient load change. The device also has an internal power-on reset (POR) and a startup delay circuit to ensure that the voltage regulator is not enabled until the input voltage has stabilized.

The FAN23SV65 is suitable for applications such as low dropout (LDO) regulators, DC/DC converters, multi-channel DC/DC converters, line-regulated cascaded regulators, microprocessor power supplies, and automotive power modules. It is also used for powering FPGA, DSP and ASIC circuits, as well as for supplying low-voltage systems such as microcontroller power supplies and battery-backed systems.

In order to use the FAN23SV65, a few external components such as an inductor, capacitors, and a resistor need to be connected to the device. After they are all connected, the voltage regulator will work properly. The inductor is typically used to store energy and limit current ripple. The capacitors are to filter the output voltage and provide noise suppression. Lastly, the resistor is to adjust the output voltage with a voltage divider circuit.

Overall, the FAN23SV65 is a reliable, efficient and cost-effective DC DC switching regulator power solution. It provides a wide input voltage range, along with adjustable output voltage, current limiting, and over-voltage protection; while still being able to provide a high output current, and low output voltage ripple. It also has built-in features such as Soft-Start and Enable/Disable functions. This makes the FAN23SV65 an ideal choice for applications requiring high efficiency and low external component count.

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