LMZ12002TZX-ADJ/NOPB datasheet by Texas Instruments

LMZ12002TZX-ADJ/NOPB Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the LMZ12002?
  A good PCB layout for the LMZ12002 involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
• How do I ensure the stability of the LMZ12002 output voltage?
  To ensure stability, it's essential to follow the recommended capacitor values and types, and to place the output capacitor close to the device. Additionally, the output voltage should be decoupled with a 10uF ceramic capacitor to prevent oscillations.
• What is the maximum input voltage that the LMZ12002 can handle?
  The LMZ12002 can handle input voltages up to 42V, but it's recommended to keep the input voltage below 36V to ensure reliable operation and to prevent damage to the device.
• How do I adjust the output voltage of the LMZ12002?
  The output voltage of the LMZ12002 can be adjusted by connecting a resistor divider network between the output and the ADJ pin. The output voltage can be calculated using the formula: Vout = 1.225V x (1 + R1/R2), where R1 and R2 are the resistors in the divider network.
• What is the thermal derating of the LMZ12002?
  The LMZ12002 has a thermal derating of 30°C/W, which means that the device's power dissipation should be reduced by 30°C/W above 25°C to prevent overheating.