Description:Input voltage up to 100V; 2 A Output Drive Capability; 1.25 V +/-1.5% feedback voltage across temperature; External Frequency Synchronization; Programmable switching frequency up to 500 kHz
The maximum input voltage that can be applied to the NCP1034DR2G is 18V, but it's recommended to operate within the specified input voltage range of 7V to 15V for optimal performance and reliability.
The NCP1034DR2G is rated to operate from -40°C to 125°C. Ensure proper thermal design, including heat sinking and airflow, to keep the device within its specified temperature range. Monitor the device's temperature and adjust the design as needed to prevent overheating.
Follow good PCB design practices, such as separating analog and digital grounds, using a solid ground plane, and minimizing trace lengths and loops. Place the input and output capacitors close to the device, and use a shielded inductor to reduce EMI. Consult the application note and onsemi's PCB layout guidelines for more information.
Choose an inductor with a high saturation current rating, low DC resistance, and a suitable inductance value (e.g., 1.5 μH to 3.3 μH). Ensure the inductor is rated for the maximum output current and has a high self-resonant frequency to minimize EMI. Consult the application note and inductor manufacturer's datasheet for more information.
Use a low-ESR ceramic capacitor (e.g., X5R or X7R) with a value between 1 μF to 10 μF, depending on the input voltage and desired ripple performance. Ensure the capacitor is rated for the maximum input voltage and has a low equivalent series resistance (ESR) to minimize voltage ripple.
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NCP1034DR2G Overview
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