LM5115EVAL

The LM5115EVAL is a Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS device that is designed to simplify the testing of various low-power, switchmode power supplies. It is designed to provide power conversion efficiency of over 94%, while extending the battery life of portable products by providing ultra-low ripple and fast-operating currents. The LM5115EVAL has many features to simplify the testing and to enable designers to evaluate the performance of the device under a wide range of conditions.

Application Field

LM5115EVAL evaluation boards are designed for a variety of applications, including use in industrial, medical, and automotive systems. These boards are also suited for switchmode power supply (SMPS) designs that require high efficiency and low ripple. Examples of such applications include LED displays, automotive and industrial systems, battery chargers, and innovative consumer products. The evaluation boards are designed to provide reliable operation over a wide range of operating conditions.

Working Principle

The LM5115EVAL evaluation board is based on a synchronous buck-boost converter topology. This converter topology allows the device to convert an input voltage into an output voltage that is either higher or lower than the input voltage. The converter operates by rapidly switching a power MOSFET device between the input and output voltage rails.

When the MOSFET is switched ON, current flows from the input voltage source into the output voltage rail. At this time, the input voltage is higher than the output voltage, and the device is operating in buck-mode. During this time, the MOSFET device is set to the ON, such that the output voltage is pushed down by a factor equal to the duty cycle of the driving signal.

When the MOSFET is switched off, current flows from the output voltage rail into the input voltage source. At this time, the input voltage is lower than the output voltage, and the device is operating in boost-mode. During this time, the MOSFET device is set to the OFF, such that the output voltage is pushed up by a factor equal to the duty cycle of the driving signal.

The LM5115EVAL converter is designed to operate over a wide input voltage range and is optimized to achieve high efficiency and low-ripple under a wide variety of operating conditions. It includes features such as cycle-by-cycle current limiting, over-current protection, and adjustable soft-start. The LM5115EVAL also features a multitude of protection features designed to ensure that the device is safe to use in a variety of applications.

The LM5115EVAL is an evaluation board designed to help designers evaluate the performance of a variety of switchmode power supplies. The device is capable of providing power conversion efficiency of over 94%, and can be used in a variety of applications. With its synchronous buck-boost topology, the LM5115EVAL is capable of providing high efficiency and low-ripple operation over a wide range of operating conditions.