PT4826A

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DC-DC converters are electrical circuits used to transform the voltage and current of a direct current source. DC-DC converters can be isolated or non-isolated. Isolated converters provide galvanic isolation between the input and output sides, which means that the output is operated with no physical connection to the input source, thus providing a greater safety and protection for both sides. Non-isolated converters are an electrical circuit between an input and output that is installed within the same shell. The input and output of a non-isolated converter are connected, making them more economical and suitable in applications where higher voltage or current is necessary, such as in the cases of UPS, inverters and power distribution systems, among others.

The PT4826A is a high efficiency, non-isolated DC-DC converter. This converter employs a control system using Frequency Modulated Pulsewidth Modulation (FPWM) technology＇, which ensures a reliable conversion of direct current power. The PT4826A is designed to take in a wide input voltage range (2.8V to 6V), making it suitable for a variety of direct current input sources. It offers a maximum output voltage of 5V and a maximum output current of 1A. It also has a selectable frequency range of 250kHz to 2 MHz, which enables it to meet different system requirements. In addition, it is capable of working at a temperature range of -20℃ to 85℃, offering a more reliable solution for applications operating in extreme temperatures.

The working principle of PT4826A is based on the use of a high-side MOSFET and a low-side MOSFET. The high-side MOSFET is responsible for providing the input voltage to an inductive sub-circuit, while the low-side MOSFET is used to control the closing and opening of the circuit. When the high-side MOSFET is open, the inductive sub-circuit is charged with the input voltage and when the low-side MOSFET is opened, the sub-circuit is discharged by providing the output voltage. This process is continually repeated in order to maintain the output voltage consistent. The speed of the process can be adjusted by varying the frequency.

The PT4826A DC-DC converter is ideal for applications that require a reliable direct current to voltage conversion. The high-efficiency converter is suitable for a wide range of power sources, making it able to provide power to a variety of electronic devices. With the ability to operate in extreme temperatures as well as a selectable frequency range, this high-quality converter is an ideal choice for many applications.

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