PXD3048WS05

DC-DC converters are devices used to convert an input of direct current (DC) from one voltage level to another. PXD3048WS05 is one such device, which uses pulse-width modulation technology to offer superior step-down efficiency, low noise operation and additional features. This section will explain the application field of PXD3048WS05 and its straightforward working principle.

Application Field

PXD3048WS05 is a high-efficiency step-down DC-DC converter, specially optimized for the mobile device market. It allows a wide range of input voltage (from 4.5V to 32V) and provides a constant output voltage of 3.3V at a maximum load of 5A. As a result, it is used for countless applications such as providing power to processor cores and other components in mobile devices, powering medical devices, and providing reliable power to portable equipment. It also has a wide range of other features such as a low noise profile, high EMI performance, and short-circuit protection.

Working Principle

PXD3048WS05 adopts pulse-width modulation (PWM) technology to convert the input from a higher voltage to a lower voltage. In simple terms, PWM is a process by which digital control signals are used to control a device or circuit. At a basic level, the inputs are processed through a controller which then modulates the pulses according to the control signal. When the processor changes the duty cycle, the power to the device is changed, thereby regulating the output voltage.

The key components of PXD3048WS05 consist of a high-frequency transformer, rectifier bridge, inductor, Schottky diodes, output filter capacitor and a steady voltage regulating circuit. The power is supplied to the transformer which then delivers it to the rectifier bridge. The transformer’s output has been rectified, so it is in the form of AC. The AC output is then rectified to DC by the rectifier bridge. This DC voltage is then connected to the inductor which works to store energy. The Schottky diodes are in place to further rectify the current. The output filter capacitor is responsible for preventing fluctuations in the output voltage and the steady voltage regulating circuit ensures that the output voltage is kept constant.

The PXD3048WS05’s operating frequency is customizable and its output voltage is adjustable. With its high efficiency, low noise profile, and other features, it is an ideal choice for a wide range of applications. As such, it has become a popular product in the DC-DC converter market.