LM2830XQMFE/NOPB datasheet by Texas Instruments

LM2830XQMFE/NOPB Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, and ensuring good thermal conductivity between the device and the heat sink. A 4-layer PCB with a solid ground plane and a thermal relief pattern can also help to dissipate heat efficiently.
• How do I ensure reliable start-up of the device?
  To ensure reliable start-up, make sure the input voltage rises monotonically and does not droop during start-up. Also, ensure that the input capacitor is properly sized to handle the inrush current during start-up.
• What is the maximum allowed voltage on the EN pin?
  The maximum allowed voltage on the EN pin is 6V. Exceeding this voltage may damage the device.
• How do I minimize electromagnetic interference (EMI) in my design?
  To minimize EMI, use a good PCB layout with a solid ground plane, keep the switching node (SW pin) away from sensitive nodes, and use a common-mode choke or a ferrite bead on the output to reduce conducted emissions.
• What is the recommended input capacitor value and type?
  The recommended input capacitor value is 10uF to 22uF, and the recommended type is a low-ESR ceramic capacitor, such as an X5R or X7R dielectric capacitor.