The REF33xx is a low-power, precision, low-dropout voltage reference family available in tiny SC70-3 and SOT-23-3 packages, and in a 1.5-mm × 1.5-mm UQFN-8 package. Small size and low power consumption (5-µA max) make the REF33xx ideal for a wide variety of portable and battery-powered applications.
The REF33xx can be operated at a supply voltage 180 mV above the specified output voltage under normal load conditions, with the exception of the REF3312, which has a minimum supply voltage of 1.7 V. All models are specified for the wide temperature range of –40°C to +125°C.
| Part number | Order | VO (V) | Initial accuracy (Max) (%) | Temp coeff (Max) (ppm/ degree C) | Operating temperature range (C) | Iout/Iz (Max) (mA) | Iq (Typ) (uA) | Iq (Max) (uA) | Package Group | Vin (Min) (V) | Vin (Max) (V) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| REF3312 |
|
1.25 | 0.15 | 30 | -40 to 125 | 5 | 3.9 | 5 |
SC70 | 3
SOT-23 | 3 UQFN | 8 |
1.8 | 5.5 |
| REF3318 |
|
1.8 | 0.15 | 30 | -40 to 125 | 5 | 3.9 | 5 |
SC70 | 3
SOT-23 | 3 |
2 | 5.5 |
| REF3320 |
|
2.048 | 0.15 | 30 | -40 to 125 | 5 | 3.9 | 5 |
SC70 | 3
SOT-23 | 3 |
2.248 | 5.5 |
| REF3325 |
|
2.5 | 0.15 | 30 | -40 to 125 | 5 | 3.9 | 5 |
SC70 | 3
SOT-23 | 3 UQFN | 8 |
2.7 | 5.5 |
| REF3330 |
|
3 | 0.15 | 30 | -40 to 125 | 5 | 3.9 | 5 |
SC70 | 3
SOT-23 | 3 UQFN | 8 |
3.2 | 5.5 |
| REF3333 |
|
3.3 | 0.15 | 30 | -40 to 125 | 5 | 3.9 | 5 |
SC70 | 3
SOT-23 | 3 |
3.5 | 5.5 |
