LM4040CEM3-2.5+T datasheet by Maxim Integrated Products

LM4040CEM3-2.5+T Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the LM4040CEM3-2.5+T to minimize noise and ensure stability?
  A good PCB layout for the LM4040CEM3-2.5+T involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths to reduce noise and inductance.
• How do I ensure the LM4040CEM3-2.5+T is stable and doesn't oscillate?
  To ensure stability, ensure that the output capacitor is within the recommended range (10uF to 47uF), and the input capacitor is at least 1uF. Also, avoid using long traces and minimize the distance between the device and the capacitors.
• What is the maximum current that the LM4040CEM3-2.5+T can source or sink?
  The LM4040CEM3-2.5+T can source up to 10mA and sink up to 20mA. However, it's recommended to limit the current to 5mA to ensure stability and prevent overheating.
• Can I use the LM4040CEM3-2.5+T as a voltage reference for an ADC or DAC?
  Yes, the LM4040CEM3-2.5+T is suitable for use as a voltage reference for ADCs or DACs due to its low noise and high stability. However, ensure that the output capacitor is properly sized to filter out noise and ensure stability.
• How do I calculate the power dissipation of the LM4040CEM3-2.5+T?
  The power dissipation of the LM4040CEM3-2.5+T can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current.