Torex recommends a compact PCB layout with minimal trace lengths and widths to reduce parasitic inductance and capacitance. A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Additionally, place decoupling capacitors close to the IC and use a common ground point for analog and digital grounds.
To ensure stable output voltage, use a high-quality output capacitor with low ESR (Equivalent Series Resistance) and a sufficient capacitance value (e.g., 10uF or higher). Additionally, ensure the input voltage is within the recommended range, and the device is operated within the specified temperature range.
Although the datasheet specifies a maximum input voltage of 36V, it's recommended to derate the input voltage to 30V or lower to ensure reliable operation and prevent damage to the internal circuitry.
While the datasheet specifies an operating temperature range of -40°C to 85°C, it's essential to consider the device's power dissipation and thermal resistance when operating in high-temperature environments. Ensure proper heat sinking and thermal management to prevent overheating and reduce the risk of device failure.
Start by verifying the input voltage, output voltage, and enable pin (EN) status. Check for proper PCB layout, decoupling, and component selection. Use an oscilloscope to monitor the output voltage and input voltage ripple. If issues persist, consult the datasheet and application notes or contact Torex's technical support for further assistance.
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