Maxim provides a recommended PCB layout in the datasheet (Figure 21) and in the application note AN1591. It's essential to follow these guidelines to minimize noise, ensure proper thermal management, and optimize signal integrity.
The input capacitor values depend on the specific application, input voltage, and desired ripple rejection. A good starting point is to use the values recommended in the datasheet (Table 5). For more information, refer to the application note AN1591, which provides a detailed capacitor selection guide.
The DS21348TB can tolerate up to 10% input voltage ripple (peak-to-peak) without affecting its performance. However, it's recommended to keep the input voltage ripple as low as possible to ensure optimal performance and minimize the risk of instability.
The DS21348TB is rated for operation up to 125°C (TJ). However, it's essential to ensure proper thermal management, such as using a heat sink or thermal pad, to prevent overheating and maintain reliability.
Maxim provides a troubleshooting guide in the application note AN1591, which covers common issues and their solutions. Additionally, it's recommended to review the datasheet, check the PCB layout, and verify the component values to ensure they match the recommended values.
DS21348TB datasheet
by Maxim Integrated Products
