REF33xx Voltage References

Texas Instruments REF33xx Voltage References are precision, low-power, low-dropout, series voltage references available in SC70-3,  SOT-23-3, and UQFN-8 packages. The REF33xx’s small size and low power consumption (5µA max) make them ideal for various portable and battery-powered applications. The Texas Instruments REF33xx can be operated at a supply voltage of 180mV above the specified output voltage under normal load conditions, except the REF3312, which has a minimum supply voltage of 1.7V. All models are specified for the wide temperature range of –40°C to +125°C.

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Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3320AIDBZT
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3,881In Stock
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SMD/SMT SOT-23-3 Series References 2.048 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3320 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3320AIDCKR
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SMD/SMT SC-70-3 Series References 2.048 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3320 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 1.25-V 30-ppm/C dri ft 3.9-uA 3-pin SO A A 595-REF3312AIRSER
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3,874In Stock
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SMD/SMT UQFN-8 Series Precision References 1.25 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3312 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3320AIDBZR
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2,149In Stock
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SMD/SMT SOT-23-3 Series References 2.048 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3320 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3333AIDBZR
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2,048In Stock
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SMD/SMT SOT-23-3 Series References 3.3 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3333 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3318AIDBZT
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173In Stock
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: 250

SMD/SMT SOT-23-3 Series References 1.8 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3318 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3312AIDCKR
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4,050In Stock
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SMD/SMT SC-70-3 Series References 1.25 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3312 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 1.25-V 30-ppm/C dri ft 3.9-uA 3-pin SO A A 595-REF3312AIRSET
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1,640In Stock
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SMD/SMT UQFN-8 Series Precision References 1.25 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3312 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3318AIDBZR
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1,861In Stock
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: 250

SMD/SMT SOT-23-3 Series References 1.8 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3318 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3320AIDCKT
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2,384In Stock
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: 3,000

SMD/SMT SC-70-3 Series References 2.048 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3320 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3325AIDBZR
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2,878In Stock
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: 250

SMD/SMT SOT-23-3 Series References 2.5 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3325 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3325AIDCKR
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2,759In Stock
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: 250

SMD/SMT SC-70-3 Series References 2.5 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3325 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3330AIDBZR
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1,979In Stock
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: 250

SMD/SMT SOT-23-3 Series References 3 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3330 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3330AIDCKT
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5,834In Stock
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SMD/SMT SC-70-3 Series References 3 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3330 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3330AIDCKR
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1,003In Stock
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: 250

SMD/SMT SC-70-3 Series References 3 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3330 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Voltage Reference
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4,226In Stock
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: 5,000

SMD/SMT UQFN-8 Series References 3 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3330 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3333AIDBZT
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6,291In Stock
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: 3,000

SMD/SMT SOT-23-3 Series References 3.3 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3333 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3333AIDBZR
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6,815In Stock
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SMD/SMT SOT-23-3 Series References 3.3 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3333 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref
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2,807In Stock
6,000Expected 9/30/2026
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SMD/SMT SC-70-3 Series References 3.3 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3333 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3312AIDCKT
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6,176In Stock
18,000Expected 1/21/2027
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SMD/SMT SC-70-3 Series References 1.25 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3312 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3318AIDBZT
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1,649In Stock
6,000Expected 10/15/2026
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: 3,000

SMD/SMT SOT-23-3 Series References 1.8 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3318 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3318AIDCKT
Datasheet
7,136In Stock
6,000On Order
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SMD/SMT SC-70-3 Series References 1.8 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3318 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3325AIDBZT
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2,838In Stock
6,000Expected 12/18/2026
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: 3,000

SMD/SMT SOT-23-3 Series References 2.5 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3325 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref
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5,267In Stock
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: 5,000

SMD/SMT UQFN-8 Series Precision References 2.5 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3325 Reel, Cut Tape, MouseReel
Texas Instruments Voltage References 30ppm/C Drift 3.9uA Vltg Ref A 595-REF33 A 595-REF3312AIDBZR
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101In Stock
4,500Expected 9/30/2026
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: 250

SMD/SMT SOT-23-3 Series References 1.25 V 0.15 % 30 PPM / C 5.5 V 5 mA - 40 C + 125 C REF3312 Reel, Cut Tape, MouseReel