LM3485MM/NOPB Integrated Circuits (ICs)

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The LM3485MM/NOPB is a member of the LM3485 series of the integrated circuit (IC) Voltage Regulators, which includes the Voltage Regulators, DC DC Switching Controllers, and other associated functions. This series is designed for applications involving a wide range of input and output voltages, and includes features such as low RDS(ON) and precise current limit.

The LM3485MM/NOPB is an easy-to-use and versatile switch controller designed to minimize external component count while providing accurate current limiting, over-temperature protection, excellent voltage accuracy, fast transient response, and a wide output range. This feature-rich device can be used in a variety of applications ranging from portable systems to industrial equipment.

The LM3485MM/NOPB is a switching controller that uses a feedback loop that combines a P-channel MOSFET driver and a current regulator to maintain constant current at a desired output voltage. The device has two inputs: an adjustable reference voltage and a feedback voltage, which together determine the output voltage. The LM3485MM/NOPB can generate output voltages from 0.5V to 36V, depending on the input voltage. The reference voltage can be set from 0.1V to 9.9V with an external resistor. The device also features a low current limit accuracy of ±5%, enabling precise current limiting.

The LM3485MM/NOPB also features a slew rate control that prevents large current changes, preventing excessive power dissipation in the circuit. The device features over-temperature protection by using an internal N-MOS sense element to control the switching frequency and the number of PWM cycles at a given temperature. The LM3485MM/NOPB also has a burst mode operation (BMO), which enables higher efficiency at light load conditions by reducing the switching frequency.

The LM3485MM/NOPB is ideal for applications such as DC-DC converters, switched regulator applications, point-of-load (POL) converters, power supplies, and battery chargers. The device offers low power dissipation, minimal external components, fast transient response, and accurate current limit. The device also features a wide input and output operating range, making it suitable for a variety of applications.

In summary, the LM3485MM/NOPB is a versatile switch controller designed to minimize external component count while providing excellent performance in a variety of application fields. Its feature-rich design makes it an ideal choice for powering a wide range of systems. The device offers low power dissipation, minimal external components, fast transient response, and accurate current limit, making it well-suited for use in a variety of applications such as DC-DC converters, switched regulator applications, point-of-load converters, power supplies, and battery chargers.

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