The MAX3172CAI+ is a high-frequency device, so it's essential to follow good layout and placement practices to minimize noise and ensure reliable operation. Maxim recommends placing the device close to the power source, using short traces, and avoiding vias and right-angle bends. Additionally, decoupling capacitors should be placed as close to the device as possible.
The MAX3172CAI+ has an adjustable output voltage range of 1.2V to 3.5V. To choose the correct output voltage, consider the voltage requirements of your load, the input voltage range, and the desired output current. You can use the datasheet's output voltage calculation formula to determine the required resistor values for your desired output voltage.
The MAX3172CAI+ has an absolute maximum input voltage rating of 6V. However, the recommended input voltage range is 2.7V to 5.5V. Operating the device above the recommended input voltage range may reduce its reliability and lifespan.
To ensure stability, follow the datasheet's guidelines for output capacitor selection, and use a capacitor with a low equivalent series resistance (ESR). Additionally, make sure the input capacitor is properly sized and placed close to the device. Avoid using capacitors with high ESR or inductance, as they can cause oscillation.
The MAX3172CAI+ has a maximum output current rating of 150mA. However, the actual output current capability may be lower depending on the input voltage, output voltage, and ambient temperature. Be sure to check the datasheet's electrical characteristics table for more information.
MAX3172CAI+ datasheet
by Maxim Integrated Products
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