CDCS502PWR datasheet by Texas Instruments

CDCS502PWR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of CDCS502PWR?
  A good PCB layout for CDCS502PWR involves keeping the input and output traces short and wide, using a solid ground plane, and placing decoupling capacitors close to the device. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
• How do I ensure the CDCS502PWR is properly powered and decoupled?
  Ensure that the input voltage is within the recommended range (2.7V to 5.5V), and use a 10uF ceramic capacitor for decoupling between VIN and GND. Additionally, use a 1uF ceramic capacitor for decoupling between VOUT and GND.
• What is the maximum output current of CDCS502PWR, and how do I limit it?
  The maximum output current of CDCS502PWR is 2A. To limit the output current, use a current-limiting resistor in series with the output, or use an external current-sensing resistor with a comparator to detect overcurrent conditions.
• How do I implement overvoltage protection (OVP) with CDCS502PWR?
  Implement OVP by connecting a zener diode or a voltage supervisor IC between VOUT and GND. This will detect overvoltage conditions and trigger a reset or shutdown signal to protect the downstream circuitry.
• What is the thermal derating of CDCS502PWR, and how do I ensure reliable operation?
  The thermal derating of CDCS502PWR is 1.5°C/W. Ensure reliable operation by providing adequate heat sinking, using a thermal pad or heat sink, and keeping the ambient temperature within the recommended range (–40°C to 125°C).