LM2852XMXAX-1.0

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The LM2852XMXAX-1.0 is a low noise, wide-bandwidth, fixed-frequency synchronous buck switching regulator. A PMIC (Power Management IC) is an integrated circuit containing helpful algorithms to optimally manage system power, helping to reduce power consumption and design complexity. This integrated circuit falls into the family of DC-DC switching regulators, designed to efficiently convert an input voltage to a lower output voltage. The design of the LM2852XMXAX-1.0 has been optimized for battery-powered applications, making it especially well suited for powering sensitive end-devices, such as FPGAs with low power requirements.

This one-phase buck regulator operates with input voltages up to 28 V and has a low quiescent current of only 2.6 µA. It also has a wide operational bandwidth to accommodate loads up to 5A, while providing a noise-free output. In addition, the LM2852XMXAX-1.0’s integrated output voltage slew rate control ensures a smooth power-up and power-down sequence.

The LM2852XMXAX-1.0 utilizes a pulse width modulation (PWM) control architecture to achieve its precise output regulation. Defined by an external resistor-capacitor (RC) network, the switching frequency of the LM2852XMXAX-1.0 can be adjusted from 200 kHz to 2 MHz depending on the demands of the ending device being powered. Low noise integrated output buck MOSFETs, with on-resistance of only 90 mΩ, help to minimize output impedance levels, allowing for better power efficiency.

In applications where higher level of precision is required, the LM2852XMXAX-1.0 offers a power good feature to monitor the output voltage and ensure proper accuracy in addition to an internal current limit circuit to protect the IC in case of excessive current surges. Additionally, its robust protection circuit further helps to prevent the IC from thermal damage, by seamlessly turning off the IC when the internal die temperature rises above specified limits.

The LM2852XMXAX-1.0 is an advanced, low noise synchronous buck regulator, providing adjustable output voltage performance with integrated power MOSFETs, allowing for efficient and stable operation from small to medium power supplies. This IC is well suited for a wide variety of applications including medical systems, consumer electronics devices, Automotive and Battery Powered Devices.

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