FAN5358S718X

Voltage - Output (Min/Fixed):	1.8V
Base Part Number:	FAN5358
Supplier Device Package:	SC-70-6
Package / Case:	6-TSSOP, SC-88, SOT-363
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	2MHz
Current - Output:	500mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.7V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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FAN5358S718X application field and working principle

The FAN5358S718X is a DC to DC converter, or switch regulator, from Fairchild Semiconductor, specifically optimized for use in power regulator applications. The device is part of the Fairchild’s FAN5358 family, which are dubbed “High Frequency Buck Regulators”. An included integrated switch allows the device to accept both wide and narrow input voltage ranges, making it an ideal choice for powering and protecting sensitive loads including high-end data processing and communications equipment.The FAN5358S718X itself is an integrated voltage regulator that features an integrated boost converter, including an NMOS/PMOS transistor switch, as well as an adjustable frequency control loop. The device’s built-in switch allows it to accept input voltages ranging from 6V to 32V, while simultaneously providing high efficiency and fast response to changing loads. It also boasts extremely low power consumption and a wide temperature range of -40°C to +85°C, making it ideal for use in a variety of power applications.The device is specifically designed for use in high frequency applications such as data processing and communications equipment, particularly those utilizing advanced Digital Signal Processing (DSP) and Ethernet switch ICs. By providing excellent stepup and/or stepdown capability, the FAN5358S718X eliminates the need for external power supplies and makes power management simpler, making it an attractive addition for many products.In its application field, the FAN5358S718X operates as a buck regulator and converts power from the input voltage to the desired output voltage regardless of the load. To achieve this, the device oscillates a voltage that is proportional to the input voltage and then divides the oscillation in order to generate a regulated output voltage. The device also provides a high level of integrated safety features, including over-current and open loop protection.In summary, the FAN5358S718X is an integrated voltage regulator that is specifically designed for use in power management applications. Its integrated switch allows it to accept a wide input voltage range, while providing high efficiency and fast response to changing loads. It is an ideal choice for powering and protecting high-end data processing and communications equipment, or any other application requiring high frequency, low power, and low temperature operation.

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