LM5116MHX/NOPB

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The LM5116MHX/NOPB is a DC-DC switching controller with a wide variety of applications. It is a highly integrated, low-power, high-efficiency step-down switching controller and synchronous rectifier controller. The device features an advanced control loop architecture and state-of-the-art components, providing excellent line and load regulation, very low output ripple and fast transient response while achieving high efficiency. In addition, the LM5116MHX/NOPB offers a wide choice of fixed operating frequencies, pulse-width modulation (PWM) and burst mode operation, protection features and programmable current limit.

The key feature of the LM5116MHX/NOPB is its advanced control loop architecture which rapidly responds to changes in line, load and temperature. This is achieved through the use of two separate control loops. The inner loop constantly adjusts the duty cycle to stabilize the output voltage and the outer loop adjusts the frequency to regulate the output current. This ensures accurate output voltage, high power efficiency and fast transient response. The combination of the two loops ensures very low output ripple, excellent line and load regulation, as well as wide temperature range operating capabilities.

The LM5116MHX/NOPB also features a wide selection of operating frequencies, ranging from 15kHz to 200kHz, allowing for optimum efficiency over a wide load range. The device can be operated in either PWM or burst mode, providing excellent efficiency at light loads. In addition, the device integrates a programmable current limit which delicately senses the current flow through the switch and limits the average current as required. This allows for increased safety, reliability and higher power delivery.

As a result of its advanced control loop architecture, the LM5116MHX/NOPB provides excellent performance and high power efficiency in a wide variety of DC-DC switching applications. It is ideal for use in power adaptors, telecom power supplies, automotive, industrial and test and measurement equipment. It can be used in applications ranging from low to high power levels, including isolated power supplies and non-isolated point of load regulators.

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