PT4686C

DC DC Converters are widely used for applications such as voltage regulation, voltage conversion, power switching, power rectification, and data conversion. The PT4686C is a highly integrated, multichannel DC DC converter with a wide range of input voltage ranges and a high efficiency rating.

Features and Benefits

The PT4686C quad-channel DC-DC converter has a wide input voltage range from 4.5 V to 28.8 V, a high efficiency rating up to 90.5%, an adjustable output current limit, and a high switching frequency of up to 2 MHz. It is able to provide high output power up to 210W with remarkable thermal performance. The PT4686C features a soft start, over-temperature, over-voltage, and over-current protection for reliable operation.

Application Fields

The PT4686C is an ideal solution for various applications such as automotive, industrial, computing, communications, consumer, LED lighting, and power supplies. It is suitable for applications requiring higher load output such as air compressors, pumps, solenoids, and fans. It is also reliable for low input voltage and high output power applications such as electric vehicles, medical devices, industrial robots, and renewable energy generation systems.

Working Principle

The PT4686C operates through the process of buck-boost conversion. In the buck mode, the input voltage is greater than the output voltage and the PT4686C behaves like a buck converter. The input current through an inductor is converted to output current using the control circuitry. Energy is stored in the inductor momentarily and released when the switch is off. In the boost mode, the output voltage is greater than the input voltage and the PT4686C behaves like a boost converter. The voltage differential between input and output increases the energy stored in the inductor. The control circuitry changes the switching time and duty cycle to adjust the output voltage.