SBVS299 April   2017

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Supply Voltage
      2. 8.3.2 Thermal Hysteresis
      3. 8.3.3 Temperature Drift
      4. 8.3.4 Noise Performance
      5. 8.3.5 Long-Term Stability
      6. 8.3.6 Load Regulation
    4. 8.4 Device Functional Modes
      1. 8.4.1 Negative Reference Voltage
      2. 8.4.2 Data Acquisition
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
    2. 12.2 Related Links
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • AEC-Q100 Qualified With the Following Results:
    • Device TA Range: –40°C to 125°C
    • Device HBM ESD Classification Level H1C
    • Device CDM ESD Classification Level C4A
  • High Accuracy: 0.2% Maximum
  • Excellent Specified Drift Performance:
    • 20 ppm/°C (Maximum) from –40°C to +125°C
  • High Output Current: ±10 mA
  • Low Dropout: 5 mV
  • Low IQ: 115 µA Maximum
  • Low Noise: 17 µVp-p/V
  • No Output Capacitor Required
  • Available Voltage Options : 1.2 V, 2 V, 2.5 V, 3 V, 3.3 V, 4 V
  • MicroSize Package: 3-Pin SOT-23

2 Applications

  • HEV/EV Powertrain Systems
    • Automotive Battery Management Systems
    • Inverter
    • Electric Power Steering Systems
  • Advanced Driver Assistance Systems (ADAS)
    • Radar Systems
    • Night Vision Systems
    • Dynamic Spotlight
    • Front Camera
  • Infotainment MCU Attached
  • Portable, Battery-Powered Equipment

3 Description

The REF31xx-Q1 is a family of precision, low power, low dropout, series voltage references available in the tiny 3-pin SOT-23 package.

The REF31xx-Q1 small size and low power consumption (100 μA typical) make it ideal for portable and battery-powered applications. The REF31xx-Q1 does not require a load capacitor, but is stable with any capacitive load and can sink or source up to 10 mA of output current.

Unloaded, the REF31xx-Q1 can operate on supplies down to 5 mV above the output voltage. All models are specified for the wide temperature range of –40°C to +125°C.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
REF3112-Q1
REF3120-Q1
REF3125-Q1
REF3130-Q1
REF3133-Q1
REF3140-Q1		 SOT-23 (3) 2.92 mm × 1.30 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

SPACER

Typical Application

REF3112-Q1 REF3120-Q1 REF3125-Q1 REF3130-Q1 REF3133-Q1 REF3140-Q1 data_acq_1_sbvs299.gif

Quiescent Current vs Temperature

REF3112-Q1 REF3120-Q1 REF3125-Q1 REF3130-Q1 REF3133-Q1 REF3140-Q1 tc_iq-tmp_bvs046.gif