LM25117PMHE/NOPB

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LM25117PMHE/NOPB is an ultrasonic cleaning power management integrated circuit (PMIC), and it is categorized as a DC-DC Switching Controller. This PMIC was developed by Texas Instruments, and it is suitable for applications in wide power and operational conditions. The device has an adjustable switching frequency, and it is capable of operating at up to 95% efficiency. In addition, this PMIC comes with numerous built-in protection features, including over-voltage protection, over-current protection, over-temperature protection, and inrush current limiting. The LS25117PMHE/NOPB switching controller is an ideal choice for many battery-powered, automotive, communications, computing, industrial, and consumer applications.

The LM25117PMHE/NOPB is a self-driven, second-order, synchronous regulator that is designed to be used in a wide range of applications. It is capable of providing constant voltage and current for fast transient response times, ultimate design flexibility, and fast settling times. It can operate in either forced or free-running frequency modes. The LM25117PMHE/NOPB features synchronous rectification, allowing for efficiencies up to 95%. In addition, frequency jittering is available for EMI reduction.

The LM25117PMHE/NOPB\'s operating voltage range is from 2.5V to 80V with an adjustable switching frequency of 500kHz to 2MHz. It is capable of driving an N-channel MOSFET with a maximum drive strength of up to 2A at 4.5V. It comes with a 20-lead TSSOP package and is capable of controlling up to two outputs. The LM25117PMHE/NOPB can be used in Standalone, Synchronous, Burst Mode®, and ultra-low standby power modes.

The LM25117PMHE/NOPB application areas include Voltage mode DC-DC conversion, Battery Storage, LED Driver, AC-DC Conversion and Automotive Power Systems among others. It is suitable for driving MOSFETs with a wide range of currents, and is ideal for managing high-power applications. The other features of the LM25117PMHE/NOPB include requiring no external components, fast current sensing capabilities, and adaptive over-voltage protection with an adjustable threshold.

The LM25117PMHE/NOPB\'s working principle is a switch-mode current controller. It operates in a closed loop, with a voltage controlled oscillator, which controls the frequency and pulse width of the switch according to the input voltage. The output voltage is monitored by a feedback loop and is adjusted based on the comparison between the actual output voltage and the input voltage. The voltage control oscillator modulates the switching frequency in order to maintain the output voltage to a pre-defined level. A loop compensation network filters out any high frequency noise from the frequency modulated pulse, and an internal current-limit circuit is implemented to keep the output current within a pre-defined limit.

In summary, LM25117PMHE/NOPB PMIC is a second-order, synchronous regulator that is suitable for numerous applications requiring reliable and efficient power management. It is ideally suited for driving MOSFETs up to 2A and is capable of providing up to 95% efficiency. The device comes with numerous protection features, and it operates in either forced or free-running frequency modes. It is suitable for managing high-power applications and can be configured to operate in stand-alone, synchronous, burst-mode, and ultra-low standby power modes.

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