PT5026N

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DC/DC Converters, such as PT5026N, are extensively utilised for the purpose of power conversion. By taking an input voltage source and converting it into a different voltage level, DC/DC converters are typically used in applications requiring the transfer of electrical energy from one level to another.

PT5026N Application Field

The application field of the PT5026N is mainly consumer transaction terminal, such as point-of-sale (POS) system, payment kiosks and vending machines, as well as digital displays, kiosks, phones, cordless phones and communication systems. It has the minimum size requirements, aiming to save space. It is highly ergonomic and easy to mount. The design is made up of a dedicated magnetic solution and provides a perfect design for space and cost efficiency.

PT5026N provides a wide output voltage range from 12V to 24V, along with an input voltage range of 14V to 40V, with a 5V standby voltage. It supports a low standby power as low as 8mW in the whole operation temperature range of -30 to +85 °C. With an output power of 50W within the working temperature frame, PT5026N has been designed with high-grade electrical and thermal performance to fulfil the application requirements globally.

PT5026N Working Principle

The PT5026N is composed of both PWM and PFM technologies which create a nearly continuous conversion by modulating the output voltage quite effectively. It relies on the Pulse Width Modulation (PWM) and Pulse Frequency Modulation (PFM) principles for its operation. To increase the efficiency of the power conversion, the PWM mode is employed when the output current is low, while the PFM size can be employed when the output current is greater.

In PWM mode, an external PWM signal is used to control the power switch on/off duty cycle, used by the PT5026N, to achieve the right output voltage. The PWM duty cycle is continuously readjusted to maintain the desired output voltage. The PFM mode is activated when the output current is higher than a certain level and the duty cycle is connected with the output current by regulating the amplitude of the control signal. This helps the PT5026N attain stable and efficient performance.

The PT5026N also uses a unique feature called ‘Dynamic Voltage Scaling’ (DVS) which allows it to monitor its output voltage, which makes it suitable for dynamic load applications. In addition, the converter is able to react to load changes as well as enhance the efficiency during light loads.

Conclusion

The PT5026N converter is a versatile device designed to be compatible with a variety of applications requiring the conversion of input voltage to output voltage. It is able to boost a wide input voltage range from 14 to 40V and offer a variety of output voltages from 12 to 24V with 5V standby voltage functionality. In addition, its PWM and PFM based control systems, along with DVS technology, enable the PT5026N converter to achieve high efficiency and reliable performance.

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