LM3485Q1MM/NOPB

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LM3485Q1MM/NOPB is a cost-effective DC/DC controller and voltage regulator with a wide input voltage range from 4.5V to 28V. It is a part of Texas Instruments extremely efficient DC/DC switching regulator controller family, allowing for micro-size implementation, high efficiency, and low EMI/RFI. The LM3485Q1MM/NOPB utilizes a single N-channel MOSFET (Metal Oxide Semiconductor Field Effect Transistor) switch, making it ideal for multiple-output DC/DC applications. Additionally, built-in various protection functions ensure an optimal balance between the highest efficiency and device reliability.

The applications of LM3485Q1MM/NOPB include power management in a variety of applications. It is suitable for distributed power systems in industrial, automotive, telecommunication, computer, server and networking systems, and mobile devices. It is also useful for point of load applications, such as microprocessors, DSP’s, FPGA’s, digital tuners and other audio/video/imaging systems.

The LM3485Q1MM/NOPB is a controller equipped with two adaptive slope compensation techniques: Pulse Frequency Modulation (PFM) and Pulse-Width Modulation (PWM). The PFM and PWM operation helps to optimize the efficiency while reducing the EMI and RFI. In the PFM mode, the device works at high efficiency over the entire range of load current. Additionally, a built-in hysteresis reduces the number of regulator start-ups, thus reducing the power consumption. Additionally, the device\'s built-in protection functions protect the device from over voltage, under voltage and over load conditions.

The LM3485Q1MM/NOPB features a simple, easy to use design with a few external components, allowing for a low cost design. The device operates from an external clock and adjusted with a trim pot. Devices are available with a frequency of up to 4MHz, making it suitable for high frequency applications. It is also possible to program the turn-off delay time of the switching MOSFET using the external capacitor which helps to improve efficiency and reduce EMI. In addition, the device features an integrated pulse-by-pulse current limit and short circuit protection to ensure device reliability.

In summary, the LM3485Q1MM/NOPB is a cost-effective DC/DC controller and voltage regulator with wide input voltage range, making it ideal for various applications in industrial, automotive, telecommunication, computer, server and networking systems, and mobile devices. It offers various protection functions to ensure device reliability and its simple design with few external components allows for a low cost design. It is therefore an ideal solution for high efficiency and low EMI/RFI point of load applications.

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