LM2738YSDEVAL

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LM2738YSDEVAL is a module specially designed for testing the performance of an external 6-pin PWM controller. Its application field and working principle make it suitable for use in a broad range of off-line DC/DC and AC/DC switch mode power supplies, such as desktop computers, telecom applications, white goods, handheld devices, automotive applications, and embedded systems. Designed to meet the latest EN55022 Class B EMI requirements, LM2738YSDEVAL is capable of achieving high efficiency, giving the user an excellent solution.

The module is designed with a single-stage, topology, which is a type of buck topology that has a number of advantages. It enables the user to reduce the required components as it requires fewer inductors, capacitors and diodes. It also enables faster transition times due to the elimination of the two-stage operation. Moreover, the switching frequency range of the LM2738YSDEVAL is wide enough to enable flexible design, and unlike conventional AC/DC power supplies it can act as both a buck or boost converter. The wide range of input voltage supports various input voltage sources, thus, allowing any application to be powered from a wide variety of energy sources.

In terms of working principle, the LM2738YSDEVAL module utilizes a fixed frequency pulse width modulation (PWM) control with an inner loop voltage feed-back. The PWM signal will be generated internally with an externally adjustable frequency from 500 kHz to 1.2 MHz. The module also features an adjustable output voltage for easy configuration of the power supply, and integrated over-voltage protection for maximum safety. In addition, the module has pre-biased low ESR Start-up capacitors, as well as undervoltage lockout, over-temperature, and short-circuit protection features.

The LM2738YSDEVAL module is not just an off-line secondary switching regulator, but can provide users with a quick solution to convert DC to AC in adjustable output current and voltage ranges. The high efficiency and the flexibility of the LM2738YSDEVAL make it ideal for any application that needs to provide reliable and efficient operation. In addition, with the module being very easy to use and configure, it can also provide significant saving in cost and time.

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