LM25117PMH/NOPB

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The LM25117PMH/NOPB is a device that falls under the category of power management integrated circuits (PMICs). Specifically, it is a voltage regulator and DC/DC controller that is commonly used in mobile applications.

One of the main applications of the LM25117PMH/NOPB is in the field of power management and regulation in mobile devices. This device provides excellent power conversion efficiency in both step-down and step-up applications. Its primary purpose is to provide an efficient and effective way to DC/DC convert voltage or current.

The LM25117PMH/NOPB has an input voltage range of 5V to 42V, a current sense voltage range of 0V to 5V, and an output voltage range of 0V to 42V. It also has a programmable reference threshold of 1A and an adjustable frequency of 50kHz to 1MHz. It supports a wide range of power control modes including Burst Mode control, Pulse Frequency Modulation (PFM) control, and Pulse Width Modulation (PWM) control.

The LM25117PMH/NOPB is a synchronous buck voltage regulator with a low-side MOSFET, where the power output is determined by the inductor and external MOSFET. It features excellent efficiency, an adjustable current limit, and an adjustable switching frequency. This device also has a programmable Sequence Enable/Disable feature that allows for the control of multiple synchronous bucks.

The working principle of the LM25117PMH/NOPB starts with the input voltage being regulated to the set output voltage through the use of an external inductor and an external MOSFET. The precision integrated voltage references on the device enable accurate output voltage regulation. The device supports a wide range of power control modes including Burst Mode control, Pulse Frequency Modulation (PFM) control, and Pulse Width Modulation (PWM). These modes provide excellent power conversion efficiency and low power consumption in both step-up and step-down applications.

The LM25117PMH/NOPB includes several protection features to safeguard the device and its connected components, including an input voltage over-voltage lockout, an output over-voltage protection, and thermal shutdown. The device also has an integrated logic control circuit that can be used to disable either the output or input, providing flexibility in the control of the power supply.

The LM25117PMH/NOPB is a versatile and reliable device for power regulation and management in mobile applications, and is capable of meeting the requirements of today’s highly power-efficient mobile devices. With its integrated precision voltage references, power control modes, and protection features, the device provides excellent power conversion efficiency and low power consumption in both step-up and step-down applications.

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