LM3481MM/NOPB

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LM3481MM/NOPB is a DC/DC converter designed for mobile and portable applications. The device is a BuckBoost switching converter and is designed to drive an external N-Channel power MOSFET to operate from a boost and buck type of configurations with a wide input voltage range.

The DC/DC converter features a high-efficiency input current control loop, a low output ripple and a programmable switching frequency from 30 kHz to 700 kHz. With a single inductor and a single external resistor, the device supports both continuous and burst modes. This makes it suitable for a variety of applications, including portable devices and wireless communications.

The LM3481MM/NOPB is a DC/DC switching regulator, which means that it controls the power supply voltage by controlling the amount of current that is passed through the load. The current can be regulated by changing either the duty cycle of the switching cycle or by changing the frequency of the switching cycle.

The LM3481MM/NOPB has a low operating voltage range of 0.3V to 6.0V and an adjustable minimum on-time of 0.7µs. This allows the power supply voltage to be regulated from very low to very high voltages. The device is also capable of operation in both buck and boost configurations, with a maximum input voltage of 18V.

The LM3481MM/NOPB also features programmable output voltage, current limit and soft-start. The output voltage is set by a resistor divider connected to the FB pin and can be programmed to a range between 0.3V and 5.25V. The output current limit can be programmed from 0 to 8A. The device is also capable of generating a soft-start current ramp when the output voltage is changing. This helps to minimize the inrush current in applications where a high-voltage start-up is needed.

The LM3481MM/NOPB is suitable for a wide range of applications, including portable devices, battery backed systems and low-voltage industrial equipment. It is designed to operate without the need for an additional external control loop, making it ideal for applications with limited external components or where additional cost must be avoided.

In conclusion, the LM3481MM/NOPB is a DC/DC switching regulator designed for mobile and portable applications. It features a high-efficiency input current control loop, a low output ripple and a programmable switching frequency from 30 kHz to 700 kHz. With a single inductor and a single external resistor, the device supports both continuous and burst modes. The device can also be used in both buck and boost configurations, and is capable of generating a soft-start current ramp when the output voltage is changing. Thus, the LM3481MM/NOPB is a highly integrated solution for low-voltage applications with limited external components.

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