FAN5361UC19X Integrated Circuits (ICs)

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FAN5361UC19X is a DC to DC switching regulator created by Fairchild Semiconductor Corporation. It was designed to provide the industry with a cost-effective and monolithic solution for a variety of consumer and industrial applications. Its features, such as high efficiency, low dropout voltage, and low power consumption, make it a valuable choice for cost-conscious system applications.

Application Field

FAN5361UC19X can be used to supply power in a wide range of consumer and industrial applications. Some of its most common uses include: LED lighting, portable electronic devices, automotive electronics, industrial control systems, embedded systems, and laptop and computer power supplies. Its high efficiency and low dropout voltage are particularly useful in automotive electronics and embedded systems. Additionally, the FAN5361UC19X also offers a low-power operating mode and is listed as an Energy Star-compatible device.

Working Principle

The FAN5361UC19X is integrated with high-performance constant-on-time (COT) control to provide excellent load and line regulation. It works by regulating the output voltage through pulse width modulation (PWM). The components of the FAN5361UC19X include an N-channel MOSFET, voltage reference, and error amplifier. During each on-time cycle, current is sent through the MOSFET and the output voltage is monitored. The FAN5361UC19X utilizes the COT technique which keeps the on-time constant regardless of the load condition or input voltage. This allows the FAN5361UC19X to provide excellent accuracy and reliability.

Aside from the pulse width modulation (PWM), the FAN5361UC19X also utilizes a couple of protection features to ensure the safety and reliability of the device. These include an under-voltage lockout (UVLO) to protect against extreme low-voltage conditions, over-voltage protection (OVP) to prevent excessive output voltage, and thermal protection to prevent overheating of the device. Additionally, the FAN5361UC19X also features short-circuit protection, over-current protection, and over-temperature protection.

Conclusion

FAN5361UC19X is a DC to DC switching regulator created by Fairchild Semiconductor Corporation. It was designed to provide the industry with a cost-effective and monolithic solution for a variety of consumer and industrial applications. Its high efficiency and low dropout voltage make it a valuable choice for cost-conscious system applications. The components of the FAN5361UC19X include an N-channel MOSFET, voltage reference, and error amplifier. It works by regulating the output voltage through pulse width modulation (PWM). The FAN5361UC19X also features a couple of protection features to ensure the safety and reliability of the device.

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