SNVSCU8 August   2026 REF53-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics REF53-Q1
    6. 6.6 Typical Characteristics
  8. 7 Parameter Measurement Information
    1. 7.1 Temperature Drift
    2. 7.2 Long-Term Stability
    3. 7.3 Noise Performance
      1. 7.3.1 1/f Noise
      2. 7.3.2 Broadband Noise
    4. 7.4 Thermal Hysteresis
    5. 7.5 Solder Heat Shift
    6. 7.6 Power Dissipation
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 EN Pin
    4. 8.4 Device Functional Modes
      1. 8.4.1 Basic Connections
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Basic Voltage Reference Connection
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Constant Current Reference
    3. 9.3 Power Supply Recommendation
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Tape and Reel Information
    2. 12.2 Mechanical Data

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DDC|6
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

REF53-Q1 DDC 6-Pin THIN SOT23 Top ViewFigure 5-1 DDC
6-Pin THIN SOT23
Top View
REF53-Q1 D, DGK 8-Pin SOIC, VSSOP Top ViewFigure 5-2 D, DGK
8-Pin SOIC, VSSOP
Top View
Table 5-1 Pin Functions
PIN TYPE DESCRIPTION
NAME DDC D, DGK
NC 1 5,7 No Connect Not internally connected. Pin can be left floating or connected to GND.
GND 2 4 Ground Ground connection.
EN 3 1 Input Device enable control. Low level input disables the reference output and device enters shutdown mode. Device can be enabled by driving voltage > 1.6V or leaving the EN pin floating.
IN 4 2 Power Input supply voltage connection. Connect a minimum 0.1μF decoupling capacitor to ground for the best performance.
REF_S 5 Output Reference voltage output sense connection. Connect it to REF_F near the load.
REF_F 6 Output Reference voltage output force connection. Connect a capacitor between from 1μF to 50μF to ground for best performance.
TEMP 3 Output Temperature monitoring pin. Provides a temperature-dependent output voltage
REF 6 Output Reference voltage output. Connect a capacitor between from 1μF to 50μF to ground for best performance.
DNC 8 Do not Connect Leave the pin floating