Texas Instruments provides a recommended PCB layout in the TPL9202PWP datasheet (Section 10.1) and in the TPL9202PWP Evaluation Module User's Guide. It's essential to follow these guidelines to minimize noise, ensure proper thermal dissipation, and optimize performance.
The input capacitor value depends on the input voltage, output voltage, and desired output ripple. A general guideline is to use a capacitor with a value between 1uF to 10uF, with a voltage rating at least 1.5 times the maximum input voltage. TI also provides a capacitor selection guide in the datasheet (Section 7.3.1).
The TPL9202PWP can deliver up to 2A of output current, but this depends on the input voltage, output voltage, and thermal conditions. It's essential to check the device's thermal derating and ensure proper heat sinking to maintain reliable operation.
The TPL9202PWP has a built-in overcurrent protection feature that can be enabled by connecting the OCP pin to a resistor divider network. The datasheet (Section 7.3.4) provides a detailed explanation of the OCP implementation and calculation of the required resistor values.
The EN (Enable) pin is used to turn the device on or off. When the EN pin is pulled high (above 1.4V), the device is enabled, and when it's pulled low (below 0.4V), the device is disabled. This pin can be used to implement power sequencing, shutdown, or low-power modes.
TPL9202PWP datasheet
by Texas Instruments
