LM2853MHX-3.0/NOPB

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Power Management ICs (PMICs) are important devices for maintaining power levels and optimising voltage applications in any modern electronic system. PMICs are usually suited for small form factors to provide flexible, agile and efficient power circuits. In the very crowded world of Voltage Regulators, the LM2853MHX-3.0/NOPB is considered a Design Standard today. This device explained here belongs to the family of DC DC Switching Regulators.

The LM2853MHX-3.0/NOPB is a synchronous buck-boost regulator that provides efficient, low-voltage conversion with high output current accuracy and wide input voltage range. It is used to step down or step up voltages in numerous applications. This is done by controlling the output voltage through a single external resistor to achieve higher accuracy and scalability when compared to other DC-DC voltage regulator solutions. It is primarily used in notebook and desktop PCs, industrial applications and automotive applications.

The operation of the LM2853MHX-3.0/NOPB is based on a synchronous buck-boost topology. It automatically switches between buck and boost operation depending on the output voltage and the input voltage. The device uses a reference voltage set at 0.8V, and an amplifier circuit that sets the output voltage. The voltage setting is done by a single external resistor, so the output voltage accuracy is very precise, with a typical accuracy of +- 0.5%.

The LM2853MHX-3.0/NOPB also incorporates constant-frequency current mode control with programmable duty cycle to optimise loop response, reduce components and improve stability. The device includes an output voltage tracking (VTR) circuit to improve load transient performance and also includes an adjustable soft-start circuit to limit inrush current during start-up.

The LM2853MHX-3.0/NOPB a powerful device that packs all these features in a tiny package and operates on a wide input voltage range of 9V to 72V. The output voltage range is adjustable from 2.0V - 60V, making it suitable for a wide range of applications. Furthermore, the device includes a precision 4A (maximum) internal switch to minimise switching losses and ensure high efficiency operation. Finally, the device comes with integrated protection features such as Over Voltage Protection (OVP) and Under Voltage Lockout (UVLO) for improved safety.

The LM2853MHX-3.0/NOPB is a powerful, efficient and reliable device and is suitable for a wide range of applications such as notebook and desktop PCs, industrial applications and automotive solutions. It ensures accurate output voltage control, wide input voltage range and high output current accuracy, making it the Design Standard in DC-DC voltage regulators.

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