SNOS633N December   1991  – August 2025 LM4040-N , LM4040-N-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics: 2V LM4040-N VR Tolerance Grades 'A' And 'B'; Temperature Grade 'I'
    6. 5.6  Electrical Characteristics: 2V LM4040-N VR Tolerance Grades 'C', 'D', And 'E'; Temperature Grade 'I'
    7. 5.7  Electrical Characteristics: 2V LM4040-N VR Tolerance Grades 'C', 'D', And 'E'; Temperature Grade 'E'
    8. 5.8  Electrical Characteristics: 2.5V LM4040-N VR Tolerance Grades 'A' And 'B'; Temperature Grade 'I' (AEC Grade 3)
    9. 5.9  Electrical Characteristics: 2.5V LM4040-N VR Tolerance Grades 'C', 'D', and 'E'; Temperature Grade 'I' (AEC Grade 3)
    10. 5.10 Electrical Characteristics: 2.5V LM4040-N VR Tolerance Grades 'C', 'D', And 'E'; Temperature Grade 'E' (AEC Grade 1)
    11. 5.11 Electrical Characteristics: 3V LM4040-N VR Tolerance Grades 'A' And 'B'; Temperature Grade 'I'
    12. 5.12 Electrical Characteristics: 3V LM4040-N VR Tolerance Grades 'C', 'D', And 'E'; Temperature Grade 'I'
    13. 5.13 Electrical Characteristics: 3V LM4040-N VR Tolerance Grades 'C', 'D', And 'E'; Temperature Grade 'E'
    14. 5.14 Electrical Characteristics: 4.1V LM4040-N VR Tolerance Grades 'A' And 'B'; Temperature Grade 'I'
    15. 5.15 Electrical Characteristics: 4.1V LM4040-N VR Tolerance Grades 'C' and 'D'; Temperature Grade 'I'
    16. 5.16 Electrical Characteristics: 5V LM4040-N VR Tolerance Grades 'A' And 'B'; Temperature Grade 'I'
    17. 5.17 Electrical Characteristics: 5V LM4040-N VR Tolerance Grades 'C' And 'D'; Temperature Grade 'I'
    18. 5.18 Electrical Characteristics: 5V LM4040-N VR Tolerance Grades 'C' And 'D'; Temperature Grade 'E'
    19. 5.19 Electrical Characteristics: 8.2V LM4040-N VR Tolerance Grades 'A' And 'B'; Temperature Grade 'I'
    20. 5.20 Electrical Characteristics: 8.2V Lm4040-N VR Tolerance Grades 'C' And 'D'; Temperature Grade 'I'
    21. 5.21 Electrical Characteristics: 10V LM4040-N VR Tolerance Grades 'A' And 'B'; Temperature Grade 'I'
    22. 5.22 Electrical Characteristics: 10V LM4040-N VR Tolerance Grades 'C' And 'D'; Temperature Grade 'I'
    23. 5.23 Typical Characteristics
      1. 5.23.1 Start-Up Characteristics
  7. 6 Parameter Measurement Information
  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
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Shunt Regulator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 4.1V ADC Application
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
      3. 8.2.3 Bounded Amplifier
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
      4. 8.2.4 Protecting Op-Amp Input
        1. 8.2.4.1 Design Requirements
        2. 8.2.4.2 Detailed Design Procedure
      5. 8.2.5 Precision ±4.096V Reference
        1. 8.2.5.1 Design Requirements
        2. 8.2.5.2 Detailed Design Procedure
      6. 8.2.6 Precision Current Sink/Source
        1. 8.2.6.1 Design Requirements
        2. 8.2.6.2 Detailed Design Procedure
    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 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Related Links
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, And Orderable Information
    1. 11.1 SOT-23 and SC70 Package Marking Information

Package Options

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

5.7 Electrical Characteristics: 2V LM4040-N VR Tolerance Grades 'C', 'D', And 'E'; Temperature Grade 'E'

all other limits TA = TJ = 25°C. The grades C, D and E designate initial Reverse Breakdown Voltage tolerances of ±0.5%, ±1% and ±2%, respectively.
PARAMETERTEST CONDITIONSMIN(2)TYP(1)MAX(2)UNIT
VRReverse Breakdown VoltageIR = 100μA2.048V
Reverse Breakdown Voltage Tolerance(3)IR = 100μALM4040CEM3TA = TJ = 25°C±10mV
TA = TJ = TMIN to TMAX±30
LM4040DEM3TA = TJ = 25°C±20
TA = TJ = TMIN to TMAX±50
LM4040EEM3TA = TJ = 25°C±41
TA = TJ = TMIN to TMAX±70
IRMINMinimum Operating CurrentLM4040CEM3TA = TJ = 25°C4560μA
TA = TJ = TMIN to TMAX68
LM4040DEM3TA = TJ = 25°C4565
TA = TJ = TMIN to TMAX73
LM4040EEM3TA = TJ = 25°C4565
TA = TJ = TMIN to TMAX73
ΔVR/ΔTAverage Reverse Breakdown Voltage Temperature Coefficient(3)IR = 10mA±20ppm/°C
IR = 1mALM4040CEM3TA = TJ = 25°C±15
TA = TJ = TMIN to TMAX±100
LM4040DEM3TA = TJ = 25°C±15
TA = TJ = TMIN to TMAX±150
LM4040EEM3TA = TJ = 25°C±15
TA = TJ = TMIN to TMAX±150
IR = 100μA±15
ΔVR/ΔIRReverse Breakdown Voltage Change with Operating Current Change(4)IRMIN ≤ IR ≤ 1mALM4040CEM3TA = TJ = 25°C0.30.8mV
TA = TJ = TMIN to TMAX1
LM4040DEM3TA = TJ = 25°C0.31
TA = TJ = TMIN to TMAX1.2
LM4040EEM3TA = TJ = 25°C0.31
TA = TJ = TMIN to TMAX1.2
1mA ≤ IR ≤ 15mALM4040CEM3TA = TJ = 25°C2.56
TA = TJ = TMIN to TMAX8
LM4040DEM3TA = TJ = 25°C2.58
TA = TJ = TMIN to TMAX10
LM4040EEM3TA = TJ = 25°C2.58
TA = TJ = TMIN to TMAX10
ZRReverse Dynamic ImpedanceIR = 1mA, f = 120Hz,
IAC = 0.1 IR		LM4040CEM30.30.9Ω
LM4040DEM30.31.1
LM4040EEM30.31.1
eNWideband NoiseIR = 100μA
10Hz ≤ f ≤ 10kHz		35μVrms
ΔVRReverse Breakdown Voltage Long Term Stabilityt = 1000 hrs
T = 25°C ±0.1°C
IR = 100μA		120ppm
VHYSTThermal Hysteresis(5)ΔT = −40°C to 125°C0.08%
(1) Typicals are at TJ = 25°C and represent most likely parametric norm.
(2) Limits are 100% production tested at 25°C. Limits over temperature are verified through correlation using Statistical Quality Control (SQC) methods. The limits are used to calculate AOQL.
(3) The overtemperature limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse Breakdown Voltage Tolerance ±[(ΔVR/ΔT)(maxΔT)(VR)]. Where, ΔVR/ΔT is the VR temperature coefficient, maxΔT is the maximum difference in temperature from the reference point of 25°C to T MIN or TMAX, and VR is the reverse breakdown voltage. The total overtemperature tolerance for the different grades in the industrial temperature range where maxΔT = 65°C is shown below:
A-grade: ±0.75% = ±0.1% ±100ppm/°C × 65°C
B-grade: ±0.85% = ±0.2% ±100ppm/°C × 65°C
C-grade: ±1.15% = ±0.5% ±100ppm/°C × 65°C
D-grade: ±1.98% = ±1.0% ±150ppm/°C × 65°C
E-grade: ±2.98% = ±2.0% ±150ppm/°C × 65°C
The total overtemperature tolerance for the different grades in the extended temperature range where max ΔT = 100 °C is shown below:
C-grade: ±1.5% = ±0.5% ±100ppm/°C × 100°C
D-grade: ±2.5% = ±1.0% ±150ppm/°C × 100°C
E-grade: ±3.5% = ±2.0% ±150ppm/°C × 100°C
Therefore, as an example, the A-grade 2.5V LM4040-N has an overtemperature Reverse Breakdown Voltage tolerance of ±2.5V × 0.75% = ±19 mV.
(4) Load regulation is measured on pulse basis from no load to the specified load current. Output changes due to die temperature change must be taken into account separately.
(5) Thermal hysteresis is defined as the difference in voltage measured at 25°C after cycling to temperature –40°C and the 25°C measurement after cycling to temperature 125°C.