LM25117PMHX/NOPB

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The LM25117PMHX/NOPB is a high-performing, integrated DC-DC switching controller IC, designed for multiple step-down, step-up, and inverting applications that can be used in power supplies, voltage regulation, and DC-DC switching. This IC combines a high-speed peak current mode buck/boost PWM controller with a wide range of integrated protection features and converters allowing it to provide a safe, reliable, and energy-efficient solution for a variety of high power supplies applications across a wide range of industries. It is well suited for use in automotive and industrial applications requiring a DC-DC converter capable of delivering high output current and high efficiency in a small footprint.

The LM25117DC is a continuous conduction mode (CCM) primary side synchronous-rectification DC-DC buck/boost PWM controller with a fixed 200KHz switching frequency. It integrates a variety of protection features within its design, including under-voltage lockouts & safe-startup, over-voltage protection, thermal shutdown, and output over/under-current protection, providing a reliable design to protect both users and their connected circuits. Additionally, it has an adjustable output voltage range and programmable switching frequency for advanced control, making it a great choice for battery-based power supplies and other small-footprint applications. The LM25117DC also has improved noise reduction and EMI performance compared to traditional buck/boost controllers by leveraging its advanced current-mode control architecture.

The LM25117DC can operate in synchronous buck, boost, and inverting modes, and can provide voltage regulation with a wide input voltage range of 4.5V to 42V and a wide adjustable output voltage range of 0.6V to 41V. Its output voltage is adjustable via an external voltage divider and the output current is limited to a maximum of 2.5A. Additionally, it can be equipped with a synchronous rectifier to improve efficiency and reduce system heat dissipation.

In terms of communication, the LM25117DC is compatible with popular microcontrollers such as I2C and SMBus, enabling efficient data transmission and allowing for a high-precision, energy-efficient power supply. It also has accurate current and voltage monitoring through its internal analog-to-digital converters, providing feedback information such as output voltages, current, temperature and other protected parameters.In summary, the LM25117DC is an excellent choice for a wide range of switching power applications that require high efficiency, small size, and robust protection features. It has a wide range of adjustable output voltages, integrated protection features, and communication capabilities, making it a versatile and highly efficient solution for multiple applications.

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