SBAS942B December   2018  – April 2019 REF3425-EP , REF3430-EP , REF3433-EP , REF3440-EP

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Dropout vs Current Load Over Temperature
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions
  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. Parameter Measurement Information
    1. 8.1 Solder Heat Shift
    2. 8.2 Long-Term Stability
    3. 8.3 Power Dissipation
    4. 8.4 Noise Performance
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Supply Voltage
      2. 9.3.2 Low Temperature Drift
      3. 9.3.3 Load Current
    4. 9.4 Device Functional Modes
      1. 9.4.1 EN Pin
      2. 9.4.2 Negative Reference Voltage
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application: Basic Voltage Reference Connection
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Input and Output Capacitors
        2. 10.2.2.2 4-Wire Kelvin Connections
        3. 10.2.2.3 VIN Slew Rate Considerations
        4. 10.2.2.4 Shutdown/Enable Feature
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Related Links
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Community Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

at TA = 25°C, VIN = VEN = 12 V, IL = 0 mA, CL = 10 µF, CIN = 0.1 µF (unless otherwise noted)
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D003_VinvsIq.gif
Figure 1. VIN vs IQ Over Temperature
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D005_SBAS804.gif
Figure 3. Power-Supply Rejection Ratio vs Frequency
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D0101_SBAS804.gif
Figure 5. Load Transient
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D0103_SBAS804.gif
Figure 7. Load Transient
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D0111_SBAS804.gif
Figure 9. Line Transient
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D013_SBAS804.gif
Figure 11. Quiescent Current Shutdown Mode
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D018_SBAS804.gif
Figure 13. Turnon Time (Enable)
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D004_SBAS804.gif
Figure 2. Quiescent Current vs Temperature
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D009_SBAS804.gif
Figure 4. Noise Performance 10 Hz to 10 kHz
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D0102_SBAS804.gif
Figure 6. Load Transient
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D0104_SBAS804.gif
Figure 8. Load Transient
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D0112_SBAS804.gif
Figure 10. Line Transient
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D017_SBAS804.gif
Refer to Solder Heat Shift for more information
Figure 12. Solder Heat Shift Distribution
REF3425-EP REF3430-EP REF3433-EP REF3440-EP D08_SBAS804.gif
Figure 14. 0.1-Hz to 10-Hz Noise (VREF)