FSL136MRTWDTU

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PMIC (Power Management Integrated Circuit) has come a long way since its inception in the 1970s. It is now the key component of most electronic systems, from mobile phones to high-end servers and from consumer products to industrial applications. One of the PMIC family members is the AC-DC converters, which are primarily used to convert alternating current (AC) or direct current (DC) electricity to a required DC voltage or power.

Among the AC-DC converters, the FSL136MRTWDTU is an energy efficient, low power and cost-effective offline switcher AC-DC converter. It is designed to provide high performance and superior reliability for low power and portable systems. The device also integrates a low-power, low cost buck type DC-DC converter, allowing it to offer better power conversion efficiency, smaller size, lower EMI and lighter weight than traditional AC-DC converters.

The FSL136MRTWDTU is an integrate offline switcher with an ultra-low leakage current quiescent current of 1mA. It features an internal rectifier, overvoltage, overcurrent and short circuit protections, a robust heatsinking and a wide 4.5V ~ 10V input voltage range. The device provides a wide range of output voltages (1, 2, 2.5, 2.8, 3, 3.3, 3.5, 4, 5, 6, 8 and 12V) with a no-load efficiency greater than 85%. The internal N-Channel MOSFET, capable of handling up to 3.5A of continuous current and switched at higher frequency, makes the device consume less board space and offer better efficiency.

In addition, the FSL136MRTWDTU has a full load power output greater than 5W, making it suitable for powering a wide variety of high power applications. And with its high efficiency, the device is ideal for use in both high-performance applications and energy-saving designs.

The working principle of the FSL136MRTWDTU is quite simple. It uses a conventional PWM (Pulse Width Modulated) control technique, similar to the buck converters. The device uses a fast switching voltage regulator that receives the input voltage and then produces a regulated output voltage. When the input voltage is higher than the output voltage, the switching MOSFET is driven HIGH and the current flows through the inductor, charging the output capacitor. When the input voltage is lower than the output voltage, the MOSFET is driven LOW, allowing the current to flow through the diode and the output capacitor, discharging energy stored in the inductor.

In conclusion, the FSL136MRTWDTU is a reliable and cost-effective offline switcher AC-DC converter, suitable for low power and portable applications. It provides a large selection of output voltages, with a no-load efficiency greater than 85%. This device is perfect for use in both high-performance and energy-saving designs. Its simple PWM control technique makes it easy to use and understand. All in all, the FSL136MRTWDTU is an efficient and reliable power solution for a variety of applications.

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