REF3033TB-GT3

Overview

The REF3033TB-GT3 is a high-precision CMOS voltage reference from the REF30xx family, providing a nominal output of 3.3 V with an accuracy of ±0.2%. It operates within a supply voltage range of 2.7 V to 5.5 V and supports sourcing or sinking up to 10 mA of load current. The device features a maximum temperature drift of 50 ppm/°C over the -40°C to +85°C operating range and maintains low quiescent current at 30 µA max. Packaged in a space-saving SOT-23 (CASE 527AG) format, it typically requires no output bypass capacitor for standard applications.

Feature Summary

• Provides stable regulation with high accuracy and low temperature drift across the specified industrial temperature range.
• Capable of sourcing or sinking significant load currents without requiring external output capacitors in most configurations.
• Operates efficiently with minimal quiescent current consumption suitable for power-sensitive designs.

Applications

• Battery powered systems
• A/D and D/A converters
• Precision regulator systems
• Portable medical equipment

Procurement Notes

Verify the specific ordering suffix TB-GT3 against the manufacturer's official documentation to confirm package type and shipping configuration. Ensure compatibility with the required supply voltage range and thermal operating conditions before integration. Confirm RoHS compliance status through the latest datasheet revision as manufacturing processes may evolve.

Selection Notes

Select this component when a precise 3.3 V reference is needed with tight accuracy tolerances and low drift characteristics. Consider the 10 mA drive capability if driving moderate loads directly. Evaluate the SOT-23 footprint constraints against available board space. Verify that the input voltage remains within the 2.7 V to 5.5 V operational window for optimal line regulation performance.

Part Context

This part belongs to the REF30xx series of high-precision, low-drift CMOS voltage references manufactured by onsemi. The family includes various fixed output voltages such as 1.25 V, 2.048 V, 2.5 V, 3.0 V, and 4.096 V. All members share similar electrical characteristics, including low noise and high stability, packaged in the compact SOT-23 form factor.

Replacement Considerations

Other devices within the REF30xx family, such as REF3030TB-GT3 or REF3040TB-GT3, offer different nominal voltages but identical package and general performance traits. Cross-referencing specific pinouts and electrical limits with alternative manufacturers' equivalents is recommended to ensure functional compatibility.