PT5527N

PT5527N is a wide input range, high efficiency, and high power density DC/DC converter from Pulse technology Inc. It is widely used in applications such as outdoor areas, telecom, wind-energy, and industrial automation. This paper will discuss about the application field and working principle of the PT5527N.

Application Field

The PT5527N has a wide input range, from 6V to 36V, and output range from 0.6V to 18V. It is capable of delivering up to 40W output power, providing unparalleled performance in a miniature 3-pin SIP package. Its universal input range reduces the need to stock multiple part numbers, making it a great choice for applications that use various input supply voltages such as cars, trucks, ships, aircraft, and solar energy. Additionally, it is designed to provide a fast transient response and excellent load and line regulation.The PT5527N suits a variety of applications like Outdoor Equipment, Industrial Automation, Wind-energy, Telecom, Industrial Hot Swapping and Battery-output.

Working Principle

The working principle behind the PT5527N is based on the same topology of a classic buck converter, where two switches are used to transfer energy from an input source to an output load. The input voltage can range from 6V to 36V and the output voltage is configurable through an external resistor divider. This device both reduces switching losses and improves the system efficiency which makes it ideal for applications that require high efficiency and a wide output voltage range.

The PT5527N employs a combination of pulse-by-pulse current limiting, hysteretic current mode control and dynamic output voltage tracking to provide unparalleled performance. It employs current mode control to ensure fast transient response to load transients as well as excellent load and line regulation. It also employs internal compensation which eliminates the external loop compensation components needed in other DC/DC converters to improve system reliability.

Overall, the PT5527N has a wide input range, high efficiency, and high power density which makes it suitable for a variety of applications. And with its combination of current limiting, hysteretic current mode control, and dynamic output voltage tracking, it provides excellent performance with a small package size.