FAN6555M

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Applications:	Converter, DDR SDRAM
Voltage - Input:	2.3 V ~ 4 V
Number of Outputs:	1
Voltage - Output:	0.7 V ~ 3.3 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	FAN6555

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FAN6555M is a high input voltage, single-stage synchronous buck converter designed for a wide range of applications, most notably power abstraction in portable consumer products. It integrates a highly efficient synchronous PWM switching regulator with a high efficiency charge pump, capable of both voltage regulation and power management. It is an ideal solution for those who require low noise, no load regulation, and fast transient response.The advantage of the FAN6555M is its simplified construction, with only three components. It operates from an input voltage range from 4V to 40V and provides an output voltage from 0.3V to 18V. Its maximum output current is 12A. The device is optimized for conversion efficiency and low noise operation, making it suitable for powering sensitive analog and digital technologies.The FAN6555M has two operational modes: constant voltage (CV) and constant current (CC). In CV mode, the output voltage is kept constant and the output current is modulated, avoiding sudden current movement and thus avoiding output noise. In CC mode, the output current is kept constant while the output voltage is modulated, either to maintain circuit stability, or to optimize the power supply of a specific load.The FAN6555M has a wide input voltage range, so it can be used in many applications. It can be used to regulate voltage for logic and digital circuits, DC-DC converters, voltage regulators, and magnetic amplifiers.The FAN6555M operates with an internal synchronous PWM switching regulator. To achieve higher efficiencies, the PWM switching frequency is variable and can be set between 500KHz and 2.8MHz. A synchronous variable PWM operation allows the device to operate at higher frequencies, but without introducing strong, unwanted high frequency harmonics inside the output voltage.To protect the FAN6555M from over-voltage, over-current, and over-temperature hazards, it features a programmable OVP, OCP, and OTP comparator. The device also features an under-voltage lockout (UVLO) to protect the charge pump from false triggering caused by low input voltages.The FAN6555M is an extremely versatile regulator and can be used in a wide range of applications. For example, in power abstraction products, it can be used to provide analog and digital power from one source. In DC-DC converters, it provides power with high efficiency and low noise. It can also provide power management in portable devices and offer regulated outputs for logic and DC-DC circuits. In addition, it can be used in combination with contactless inductive power systems and relay drivers, allowing designers to increase the safety of their applications.In conclusion, the FAN6555M is an ideal solution for many applications requiring a high performance, single stage synchronous buck converter. It is designed with a high efficiency PWM switching converter and a high efficiency charge pump to improve efficiency, reduce input noise, and support a wide input voltage range. The device is also equipped with OVP, OCP, OTP, and UVLO protection functions, making it an ideal solution for many applications.

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