FAN5230QSCX

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Applications:	Converter, Mobile PCs
Voltage - Input:	5.4 V ~ 24 V
Number of Outputs:	5
Voltage - Output:	3.3V, 5V, 12V, Adj
Operating Temperature:	-20°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	24-SSOP (0.154", 3.90mm Width)
Supplier Device Package:	24-QSOP
Base Part Number:	FAN5230

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Introduction

The FAN5230QSCX is a special purpose voltage regulator IC specifically designed to provide excellent load regulation, fast transient response and low noise characteristics. It is a monolithic 3-terminal adjustable step-down regulator capable of delivering an output current up to 5A. This voltage regulator is specially designed for applications such as automotive systems, industrial solutions, and consumer electronics.

Application Field

The FAN5230QSCX is suitable for medium power and high current applications, such as automotive lighting, laptop power supply and battery chargers, industrial power supplies, and power adapter systems.Its wide input voltage range of 4.5 V to 19 V enables the FAN5230QSCX to be used in different power sources, such as automotive battery, 5V AC/DC power adapter, and so forth.The FAN5230QSCX provides an adjustable output voltage from 0.8 V to the maximum input voltage, and an adjustable frequency from 200 kHz to 1.2 MHz. This makes it suitable for various applications such as microprocessors, FPGA, and DSP supplies.

Features and Benefits

The FAN5230QSCX has numerous features and benefits that make it ideal for a wide range of applications. • Maximum 5A Output Current: The FAN5230QSCX provides high-sustained output current of up to 5A, enabling it to power high-current applications such as automotive lighting systems and displays. • Low Quiescent Current: The FAN5230QSCX has low quiescent current in standby/shutdown mode, which allows improved board optimization and longer battery life.• High Efficiency: The FAN5230QSCX is designed to be highly efficient, with an efficiency range of up to 95%. This makes it suitable for applications that require low power loss.• Thermal Shutdown Protection: The FAN5230QSCX is designed with thermal shutdown protection, which helps prevent damage from thermal overload.

Working Principle

The FAN5230QSCX works in a step-down converter mode. In this power conversion system, the output voltage is lower than the input.When the power switch is triggered, the input voltage is applied to the power switch. As the switch is turned on, the inductor current increases exponentially. When the switch is turned off, the energy stored in the inductor is dumped into the output capacitor, providing the output voltage.The output voltage is regulated by adjusting the duty cycle of the switch on-time. A smaller on-time results in lower output voltage. This is controlled by an internal error amplifier which compares the output voltage to the reference voltage.The FAN5230QSCX also provides protection features such as short circuit protection and thermal shutdown protection. These features help ensure safe operation and protect the device from damage due to high-current or excessive temperature conditions.

Conclusion

The FAN5230QSCX is a special-purpose voltage regulator IC that is specifically designed to provide excellent load regulation, fast transient response, and low noise characteristics. Its wide input voltage range, adjustable output voltage and adjustable frequency make it suitable for various applications, including automotive systems, industrial solutions, and consumer electronics. This device also provides protection features such as short circuit protection and thermal shutdown protection, which help ensure safe operation and protect the device from damage.

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