SLOS456P January   2005  – March 2025

PRODUCTION DATA  

  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  LM4040A20I, LM4040B20I Electrical Characteristics
    6. 6.6  LM4040C20I, LM4040D20I Electrical Characteristics
    7. 6.7  LM4040C20Q, LM4040D20Q Electrical Characteristics
    8. 6.8  LM4040A25I, LM4040B25I Electrical Characteristics
    9. 6.9  LM4040C25I, LM4040D25I Electrical Characteristics
    10. 6.10 LM4040C25Q, LM4040D25Q Electrical Characteristics
    11. 6.11 LM4040A30I, LM4040B30I Electrical Characteristics
    12. 6.12 LM4040C30I, LM4040D30I Electrical Characteristics
    13. 6.13 LM4040C30Q, LM4040D30Q Electrical Characteristics
    14. 6.14 LM4040A41I, LM4040B41I Electrical Characteristics
    15. 6.15 LM4040C41I, LM4040D41I Electrical Characteristics
    16. 6.16 LM4040A50I, LM4040B50I Electrical Characteristics
    17. 6.17 LM4040C50I, LM4040D50I Electrical Characteristics
    18. 6.18 LM4040C50Q, LM4040D50Q Electrical Characteristics
    19. 6.19 LM4040A82I, LM4040B82I Electrical Characteristics
    20. 6.20 LM4040C82I, LM4040D82I Electrical Characteristics
    21. 6.21 LM4040A10I, LM4040B10I Electrical Characteristics
    22. 6.22 LM4040C10I, LM4040D10I Electrical Characteristics
    23. 6.23 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shunt Reference
  9. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 LM4040 Voltage and Accuracy Choice
        2. 8.2.2.2 Cathode and Load Currents
        3. 8.2.2.3 Output Capacitor
        4. 8.2.2.4 SOT-23 Connections
        5. 8.2.2.5 Start-Up Characteristics
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Related Links
    2. 9.2 Trademarks
    3. 9.3 Electrostatic Discharge Caution
    4. 9.4 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

4 Device Comparison Table

TA DEVICE
GRADE		 VKA ORDERABLE (1)
PART NUMBER
–40°C to 85°C A grade:
0.1% initial
accuracy
and
100 ppm/°C
temperature
coefficient		 2.048V LM4040A20I
2.5V LM4040A25I
3V LM4040A30I
4.096V LM4040A41I
5V LM4040A50I
8.192V LM4040A82I
10V LM4040A10I
B grade:
0.2% initial
accuracy
and
100 ppm/°C
temperature
coefficient		 2.048V LM4040B20I
2.5V LM4040B25I
3V LM4040B30I
4.096V LM4040B41I
5V LM4040B50I
8.192V LM4040B82I
10V LM4040B10I
–40°C to 85°C C grade:
0.5% initial
accuracy
and
100 ppm/°C
temperature
coefficient		 2.048V LM4040C20I
2.5V LM4040C25I
3V LM4040C30I
4.096V LM4040C41I
5V LM4040C50I
8.192V LM4040C82I
10V LM4040C10I
–40°C to 85°C D grade:
1.0% initial
accuracy
and
150 ppm/°C
temperature
coefficient		 2.048V LM4040D20I
2.5V LM4040D25I
3V LM4040D30I
4.096V LM4040D41I
5V LM4040D50I
8.192V LM4040D82I
10V LM4040D10I
–40°C to 125°C C grade:
0.5% initial
accuracy
and
100 ppm/°C
temperature
coefficient		 2.048V LM4040C20Q
2.5V LM4040C25Q
3V LM4040C30Q
5V LM4040C50Q
D grade:
1.0% initial
accuracy
and
150 ppm/°C
temperature
coefficient		 2.048V LM4040D20Q
2.5V LM4040D25Q
3V LM4040D30Q
5V LM4040D50Q
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com.