Texas Instruments REF3125AIDBZT 2.5V Fixed Voltage Reference, SOT-23-3

The Texas Instruments REF3125AIDBZT is a precision low-power, low-dropout (LDO) voltage reference, designed to deliver exceptional stability and accuracy in a compact SOT-23-3 package. It offers a fixed 2.5V output with a maximum initial accuracy of 0.2% and a low temperature coefficient of ±10ppm/°C, ensuring reliable performance across a wide operating temperature range from -40°C to 125°C.

This device features an ultra-low dropout voltage of just 5mV, allowing it to operate efficiently with supply voltages very close to the output voltage, which is crucial for maximising battery life in portable applications. With a low quiescent current (Iq) of 115µA, it is engineered for minimal power consumption, making it an ideal choice for power-sensitive designs.

Key Features & Benefits

• High Output Current: Capable of sinking and sourcing up to ±10mA of output current, providing robust drive capability for external circuits.
• Exceptional Stability: The device does not require an external load capacitor for stability but remains stable with any capacitive load, simplifying board design and reducing component count.
• Compact and Robust: The small SOT-23-3 surface-mount package saves valuable PCB space, while the extended temperature range ensures reliability in harsh environments.
• Green Product: Manufactured with environmentally friendly materials, containing no antimony or bromine (Sb/Br).

The REF3125AIDBZT is part of Texas Instruments' high-performance REF31xx series, offering designers a reliable voltage reference solution that combines precision, low power, and ease of use.