1 Features
1• Microsize Packages: SC70-3, SOT-23-3, UQFN-8
• Low Supply Current: 3.9 μA (typ)
• Extremely Low Dropout Voltage: 110 mV (typ)
• High Output Current: ±5 mA
• Low Temperature Drift: 30 ppm/°C (max)
• High Initial Accuracy: ±0.15% (max)
• 0.1-Hz to 10-Hz Noise: 35 μVPP (REF3312)
• Voltage Options: 1.2 V, 1.8 V, 2.5 V, 3 V, 3.3 V

2 Applications
• Portable Equipment
• Tablets and Smartphones
• Hard Disk Drives
• Sensor Modules
• Data Acquisition Systems
• Medical Equipment
• Test Equipment

3 Description
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.