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Product Detailed Parameters
- Description：IC VREF SERIES 0.2% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：25 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The REF3033AIDBZT is a precision series voltage reference from Texas Instruments, delivering a fixed output of 3.3 V with an initial accuracy of ±0.2%. It operates within an input voltage range of 3.35 V to 5.5 V and supports a maximum load current of 25 mA. The device features a temperature coefficient of 75 ppm/°C and consumes a typical supply current of 42 µA. It is housed in a compact SOT-23-3 package and functions reliably across an extended industrial temperature range from -40°C to +125°C.
Feature Summary
- Provides stable 3.3 V reference with high initial accuracy
- Low power consumption suitable for battery applications
- Compact surface-mount packaging for space-constrained designs
Applications
- Portable instrumentation requiring precise voltage references
- Battery-powered measurement systems
- Data acquisition channels
Procurement Notes
Verify the specific suffix 'T' indicates cut-tape or tape-and-reel configuration distinct from bulk or other packaging variants. Confirm RoHS compliance status through official documentation. Ensure the selected variant matches the required operating temperature range and package dimensions for your PCB layout constraints before finalizing procurement.
Selection Notes
Select this component when a fixed 3.3 V output with ±0.2% accuracy is required in a small SOT-23-3 footprint. It is appropriate for designs needing low quiescent current and wide temperature stability. Compare against other REF30xx family members if different output voltages or tighter temperature coefficients are necessary for the specific application requirements.
Part Context
This part belongs to the REF30xx series of CMOS voltage references by Texas Instruments. The series offers various fixed output voltages with similar low-power characteristics. The REF3033 specifically targets applications needing a 3.3 V rail with high precision. Other variants in the family provide different voltage levels while maintaining comparable performance metrics and packaging options.
Replacement Considerations
REF3033AIDBZR serves as a reel-based alternative with identical electrical specifications. REF3033AIDBZRG4 is an older generation version that may be obsolete. Verify pinout compatibility and thermal performance when substituting with these or other series reference components.
