LT1026MH datasheet by Linear Technology

LT1026MH Frequently Asked Questions (FAQs)

• What is the maximum power dissipation of the LT1026MH?
  The maximum power dissipation of the LT1026MH is dependent on the package and thermal environment. For the MH package, the maximum power dissipation is approximately 1.4W at 25°C ambient temperature, with a thermal resistance (θJA) of 90°C/W.
• How do I ensure stability when using the LT1026MH as a voltage reference?
  To ensure stability, it's essential to follow proper PCB layout and decoupling practices. Use a 10uF ceramic capacitor between the VOUT pin and GND, and a 1uF ceramic capacitor between the VIN pin and GND. Additionally, keep the input and output traces short and away from noise sources.
• What is the output impedance of the LT1026MH?
  The output impedance of the LT1026MH is typically around 0.2Ω, which is relatively low. This makes it suitable for applications where a low-impedance voltage reference is required.
• Can I use the LT1026MH as a voltage regulator?
  While the LT1026MH can be used as a voltage regulator, it's not recommended. The device is designed as a precision voltage reference, and its output current capability is limited to 10mA. For voltage regulation, it's better to use a dedicated voltage regulator IC.
• How does the LT1026MH behave during power-up and power-down?
  During power-up, the LT1026MH has a soft-start characteristic, which helps to prevent output voltage overshoot. During power-down, the output voltage decays rapidly to zero, with a typical turn-off time of 10μs.