LM2852YMXAX-1.8

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LM2852YMXAX-1.8 is a DC/DC switching regulator that belongs to the Power Management Integrated Circuit (PMIC) and is designed to facilitate voltage regulation requirements in a variety of applications. It is a three phase synchronous buck regulator with down to 50mV voltage accuracy and is typically used when a low input voltage, high current, low output voltage is required. It has a built-in high and low voltage detection. The working principle of the LM2852YMXAX-1.8 is based on the synchronous buck techniques, which allow for increased conversion efficiency even when a low input voltage is required. The device can operate with an input voltage rage from 2.5 V to 28 V, and the output voltage can be set to between 0.8 V and 23 V at up to 16 A.

The three phase synchronous buck topology improves the efficiency of voltage regulation compared to traditional buck topologies. The high input voltage is divided among the three phases, each creating a lower voltage. The lower voltage is then used to drive the synchronous rectifier MOSFET and the transformer, creating an output voltage from the transformer. By utilizing high efficiency MOSFETs and transformation steps, this circuit allows for up to 95% efficiency. Additionally, the LM2852YMXAX-1.8 utilizes frequency variation to achieve constant switching frequencies regardless of the input voltage and current.

The LM2852YMXAX-1.8 has a maximum output current of 16 A and a wide input voltage range of 2.5 V to 28 V. It also features a tight voltage regulation of 0.5% while in pulse-skip mode and 0.3% while in continuous output current mode. It also features a maximum switching frequency of 2 MHz, allowing for fast and accurate voltage regulation.The device features a wide variety of protections, including an output overvoltage detect, output current limiting, thermal shutdown, and an undervoltage lockout.

The LM2852YMXAX-1.8 can be used in a variety of applications due to its wide input voltage range and its high output current capabilities. It can be used for point of load voltage regulation, LED lighting, motor drives, industrial power supplies, and power conversion for battery charging. Additionally, the device can be used for automotive applications due to its wide input range and its protects for overvoltage and thermal shutdown.

In conclusion, the LM2852YMXAX-1.8 is a three phase synchronous buck regulator that belongs to the power management integrated circuit (PMIC). It has a wide input voltage range from 2.5 V to 28 V and an output voltage ranging from 0.8 V to23 V at up to 16 A. It features high efficiency, with up to 95% efficiency, and frequency variation to ensure a constant switching frequency regardless of the input voltage and current. The LM2852YMXAX-1.8 is suitable for a variety of applications, including point of load voltage regulation, LED lighting, motor drives, industrial power supplies, and power conversion for battery charging, as well as automotive applications.

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