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Product details

Parameters

VO (V) 2.048 Initial accuracy (Max) (%) 0.15 Temp coeff (Max) (ppm/ degree C) 30 Rating Catalog Vin (Min) (V) 2.248 Vin (Max) (V) 5.5 Iq (Typ) (uA) 3.9 Iout/Iz (Max) (mA) 5 Operating temperature range (C) -40 to 125 open-in-new Find other Series voltage references

Package | Pins | Size

SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 SOT-SC70 (DCK) 3 3 mm² 2 x 1.3 open-in-new Find other Series voltage references

Features

  • 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

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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.

 

 

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Technical documentation

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Type Title Date
* Datasheet REF33xx 3.9-μA, SC70-3, SOT-23-3, and UQFN-8, 30-ppm/°C Drift Voltage Reference datasheet (Rev. H) Jan. 16, 2018
Application notes REF33xx Functional Safety FIT Rate and Failure Mode Distribution Dec. 18, 2019
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Application notes Diode-Based Temperature Measurements (Rev. A) May 17, 2019
White papers Voltage reference selection basics white paper (Rev. A) Oct. 23, 2018
Technical articles Accurately measure vital signs with low Iq and a small form factor Mar. 28, 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost

Design tools & simulation

SIMULATION MODELS Download
SBOM236A.ZIP (36 KB) - PSpice Model
SIMULATION MODELS Download
SBOM237A.TSC (93 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM238A.ZIP (6 KB) - TINA-TI Spice Model

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 3 View options
SOT-23 (DBZ) 3 View options

Ordering & quality

Support & training

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