LNK564DN-TL

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Power management integrated circuits (PMICs) are a key component of many consumer and industrial products, playing an important role in controlling energy consumption, providing uninterrupted power to a system, and helping to reduce cost and complexity. PMICs come in many different designs, ranging from AC/DC converters, offline switchers, to high-efficient power amplifiers. The LNKPMIC 564DN-TL is a an offline switcher that offers an integrated step-down converter for isolated applications.The LNKPMIC 564DN-TL is an offline switching converter, which features an integrated low-side high-side driver, internal control loop, and optimized gate drive circuit. The 564DN-TL can achieve up to >95% efficiency and up to 0.5% line regulation without an output capacitor – making it an ideal solution for applications that require tight output accuracy, improved efficiency, and reduced EMI. The converter supports an input voltage range of 4.5 to 18V and an adjustable output voltage of 0.8 to 15V. Other features include overload protection, short-circuit protection, thermal shutdown, and integrated power good indicator. The LNKPMIC 564DN-TL is a perfect solution for applications that require low-profile, efficient, and low-EMI power conversion. It is specifically designed for a range of isolated-load applications, including industrial products, medical instruments, and consumer electronics. Its integrated driver and optimized gate drive circuit makes it an excellent candidate for dimmable LED lighting applications, unmanned aerial vehicles, and robotic systems.The LNKPMIC 564DN-TL utilizes constant-on-time control with a fixed switching frequency and voltage-mode operation. This helps simplify the design process and reduce the size of the overall solution. The integrated low-side high-side driver provides improved efficiency and reduced EMI. The switching frequency can be adjusted via either an external resistor or a voltage signal, depending on the application requirements. The LNKPMIC 564DN-TL works in a variety of topologies, including flyback and forward topologies. The flyback topology is seen in applications with high input voltage and low output voltage, whereas the forward topology is used in applications with low input voltage and high output voltage. The flyback topology is generally the preferred topology as it is more cost-effective and efficient.In a typical application, the LNKPMIC 564DN-TL is connected to an inductive load and a transformer. The input voltage is applied to the input pins, whereas the output voltage is adjusted using an external resistor. The internal control loop monitors the output voltage and adjusts the switching frequency to maintain output accuracy. The high-side and low-side drivers are used to control the power switches, which in turn controls the amount of current flow within the system. Overall, the LNKPMIC 564DN-TL is an ideal solution for a variety of offline applications that require low-power, low-EMI, and cost-effective solutions. The integrated driver and optimized gate drive circuit make it an excellent choice for LED lighting and various robotic applications. In addition, the constant-on-time control with a fixed switching frequency and voltage-mode operation make it an simple and efficient solution.

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