The maximum input voltage that can be applied to the LT1129CQ-3.3 is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
To ensure the output voltage is stable and accurate, make sure to use a stable input voltage, decouple the input and output with capacitors, and use a low-ESR output capacitor. Also, keep the PCB layout clean and avoid noise coupling.
The minimum input voltage required for the LT1129CQ-3.3 to operate is 3.5V, but it's recommended to keep it above 4V for optimal performance.
The LT1129CQ-3.3 is rated for operation up to 125°C, but its performance may degrade at high temperatures. Make sure to derate the output current and consider using a heat sink if operating in high-temperature environments.
The output voltage tolerance of the LT1129CQ-3.3 is typically ±2% over the operating temperature range. You can calculate the output voltage tolerance by multiplying the nominal output voltage (3.3V) by the tolerance percentage (2%).
LT1129CQ-3.3 datasheet
by Linear Technology
