FAN53526UC00X

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The FAN53526UC00X is an integrated DC-DC switching voltage regulator from Fairchild Semiconductor, designed for use as an intermediate bus converter (IBC) or as a point-of-load (POL) converter. It is a fully-integrated, low-component-count solution for voltage step-down, step-up, and inverting conversion. This device is particularly well-suited for medium- to high-current applications, including a wide variety of computing and consumer electronic applications.

Application Field

The FAN53526UC00X is suitable for a wide variety of computing, consumer electronics, and industrial applications, including computers, servers, GPUs, embedded boards, power management, and power supplies. The device is capable of providing either constant voltage or constant current. With its wide input voltage range of 2.3V to 20V, the FAN53526UC00X enables efficient, low-noise operation of many electrical loads.

Working Principle

The FAN53526UC00X DC-DC switching voltage regulator is based on a fixed-frequency, current-mode, synchronous buck converter circuit, which uses a pair of power MOSFETs in a 180° conduction mode for energy transfer. The two power MOSFETs are connected in a buck converter topology and are driven by a high-efficiency gate driver. The driver contains a low-dropout (LDO) regulator to reduce output ripple.

The FAN53526UC00X operates in fixed frequency, current mode control, and is stable over a wide range of load and output capacitance conditions. This reduces component count and noise, as well as improving system efficiency. Furthermore, the switching FETs are protected against over-current, over-temperature, and under-voltage events.

In summary, the FAN53526UC00X from Fairchild Semiconductor is a fully-integrated, low-component-count DC-DC switching voltage regulator, suitable for a wide range of computing, consumer electronics and industrial applications. Its synchronous buck converter circuit, advanced controls, and protection features make it an ideal solution for high current applications.

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