LM25116MH/NOPB

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LM25116MH/NOPB Application Field and Working Principle

The LM25116MH/NOPB is an integrated circuit designed as a DC/DC Synchronous Buck Controller with an adjustable output voltage. It is designed to provide a regulated supply voltage and current for a wide variety of applications, including distributed power systems and point of load (POL) drivers. The LM25116MH/NOPB allows the user to adjust the regulated output voltage according to their needs by an external resistor option. This controller features an internal oscillator, allowing the device to operate without any external feedback, thus reducing development costs and circuit complexity. Additionally, it includes a built-in overvoltage protection circuit, ESD protection and device current limit.

The LM25116MH/NOPB features an input voltage range up to 42V, allowing it to meet the needs of many different applications. Additionally, it includes an internal 2A, 0.2ohm switch, enabling it to deliver a maximum output current of 10A. The LM25116MH/NOPB also features a wide operating temperature range, from -40°C to +125°C, making it suitable for operation in the harshest environments. The device also includes an enable pin which allows the user to put the device into sleep mode, drastically reducing power consumption.

The LM25116MH/NOPB utilizes a great deal of advanced circuitry to provide fast and reliable regulation. The device is manufactured using high-performance CMOS processes and comes in a standard 8-lead SOIC package. The advanced circuitry within the LM25116MH/NOPB allows it to provide a wide range of output voltages, making it suitable for a wide variety of applications.

LM25116MH/NOPB Working Principle

The LM25116MH/NOPB is a DC/DC controller that uses the principle of switch-mode voltage regulation to provide a regulated voltage output. The device senses the voltage level of the input source and adjusts its output accordingly. This principle works in the following way:

The LM25116MH/NOPB features an internal oscillator that operates at a fixed frequency, typically 4 - 200 kHz. This oscillator pulse is fed to the internal switch, which alternately turns the switch on and off. When the internal switch is on, it pulls the output voltage up to the input voltage. When the internal switch is off, the output voltage is allowed to drop. This action serves to regulate and stabilize the output voltage.

The LM25116MH/NOPB also features an internal circuitry, called BOOST FET, which helps to optimize the performance of the device. This internal circuitry senses the load current and adjusts the current level, resulting in faster transient response and improved efficiency. Additionally, the device also features an adjustable current limit, which helps to prevent damage due to overcurrent.

Conclusion

The LM25116MH/NOPB is a highly integrated DC/DC synchronous buck controller, ideal for a wide range of applications. It features a wide input voltage range, a wide operating temperature range, and supports adjustable output voltage. Additionally, the device includes an internal oscillator, allowing it to operate without any external feedback, as well as built-in protection circuits, such as overvoltage protection and ESD protection. By utilizing advanced circuitry and manufacturing techniques, the LM25116MH/NOPB provides reliable and fast regulation of its output.

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