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Shunt voltage references

LM4041-N-Q1

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Automotive, precision micropower shunt voltage reference

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Data sheet

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Drop-in replacement with upgraded functionality to the compared device.
NEW LM4060-Q1 ACTIVE Automotive, 20ppm/°C maximum drift high precision shunt voltage reference LM4060-Q1 offers 75% better initial accuracy, and an increase to 50mA cathode current support.

LM4041-N-Q1

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Data sheet Order now

Product details

Rating Automotive VO (V) 1.225 Initial accuracy (max) (%) 0.1, 0.2, 0.5, 1, 2 Iz for regulation (min) (µA) 60 VO adj (min) (V) 1.24 VO adj (max) (V) 10 Reference voltage (V) Fixed, adjustable Temp coeff (max) (ppm/°C) 100, 150 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 12
Rating Automotive VO (V) 1.225 Initial accuracy (max) (%) 0.1, 0.2, 0.5, 1, 2 Iz for regulation (min) (µA) 60 VO adj (min) (V) 1.24 VO adj (max) (V) 10 Reference voltage (V) Fixed, adjustable Temp coeff (max) (ppm/°C) 100, 150 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 12
SOT-23 (DBZ) 3 6.9204 mm² (2.92 mm × 2.37 mm)

Updated the numbering format for tables, figures, and cross-references throughout the document

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to +125°C ambient temperature range
    • Device temperature Grade 3: –40°C to +85°C ambient temperature range (for SOT-23 only)
  • Available in standard, AEC-Q100 Grade 1 (extended temperature range), and Grade 3 (industrial temperature range) qualified versions (SOT-23 only)
  • Small packages: SOT-23, TO-92, and SC70
  • No output capacitor required
  • Tolerates capacitive loads
  • Reverse breakdown voltage options of 1.225V and adjustable
  • Output voltage tolerance (A grade, 25°C) = ±0.1% (maximum)
  • Low output noise (10Hz to 10kHz) = 20µVRMS
  • Wide operating current range of 60µA to 12mA
  • Industrial temperature range (LM4041A/B-NLM4041-N-Q1A/Q1B) of −40°C to +85°C
  • Extended temperature range (LM4041C/D/E-NLM4041-N-Q1C/Q1D/Q1E) of −40°C to +125°C
  • Low temperature coefficient of 100ppm/°C (maximum)

Updated the numbering format for tables, figures, and cross-references throughout the document

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to +125°C ambient temperature range
    • Device temperature Grade 3: –40°C to +85°C ambient temperature range (for SOT-23 only)
  • Available in standard, AEC-Q100 Grade 1 (extended temperature range), and Grade 3 (industrial temperature range) qualified versions (SOT-23 only)
  • Small packages: SOT-23, TO-92, and SC70
  • No output capacitor required
  • Tolerates capacitive loads
  • Reverse breakdown voltage options of 1.225V and adjustable
  • Output voltage tolerance (A grade, 25°C) = ±0.1% (maximum)
  • Low output noise (10Hz to 10kHz) = 20µVRMS
  • Wide operating current range of 60µA to 12mA
  • Industrial temperature range (LM4041A/B-NLM4041-N-Q1A/Q1B) of −40°C to +85°C
  • Extended temperature range (LM4041C/D/E-NLM4041-N-Q1C/Q1D/Q1E) of −40°C to +125°C
  • Low temperature coefficient of 100ppm/°C (maximum)

Excellent for space-critical applications, the LM4041-NLM4041-N-Q1 precision voltage reference is available in the sub-miniature SC70 and SOT-23 surface-mount packages. The advanced design of the LM4041-NLM4041-N-Q1 eliminates the need for an external stabilizing capacitor while providing stability with any capacitive load, thus making the LM4041-NLM4041-N-Q1 easy to use. Further reducing design effort is the availability of a fixed (1.225V) and adjustable reverse breakdown voltage. The minimum operating current is 60µA for the LM4041-NLM4041-N-Q1 1.2 and the LM4041-NLM4041-N-Q1 ADJ. Both versions have a maximum operating current of 12mA.

The LM4041-NLM4041-N-Q1 uses fuse and Zener-zap reverse breakdown or reference voltage trim during wafer sort to make sure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C. Band gap reference temperature drift curvature correction and low dynamic impedance provide stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.

Excellent for space-critical applications, the LM4041-NLM4041-N-Q1 precision voltage reference is available in the sub-miniature SC70 and SOT-23 surface-mount packages. The advanced design of the LM4041-NLM4041-N-Q1 eliminates the need for an external stabilizing capacitor while providing stability with any capacitive load, thus making the LM4041-NLM4041-N-Q1 easy to use. Further reducing design effort is the availability of a fixed (1.225V) and adjustable reverse breakdown voltage. The minimum operating current is 60µA for the LM4041-NLM4041-N-Q1 1.2 and the LM4041-NLM4041-N-Q1 ADJ. Both versions have a maximum operating current of 12mA.

The LM4041-NLM4041-N-Q1 uses fuse and Zener-zap reverse breakdown or reference voltage trim during wafer sort to make sure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C. Band gap reference temperature drift curvature correction and low dynamic impedance provide stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LM4041-N LM4041-N-Q1 Precision Micro Power Shunt Voltage Reference datasheet (Rev. I) PDF | HTML Jul 28, 2025
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun 28, 2019
Application brief Automotive LED Lighting with Adjustable Shunt References Jul 17, 2018
Technical article Speeding through the ADAS market 0-60 PDF | HTML Dec 7, 2015

Design & development

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LM4041-NA1P2 PSpice Transient Model (Rev. A)

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LM4041-NA1P2 Unencrypted PSpice Transient Model (Rev. B)

SNOM529B.ZIP (20 KB) - PSpice model
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LM4041-NADJC PSpice Transient Model

SNOM390.ZIP (26 KB) - PSpice model
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LM4041-NADJC Unencrypted PSpice Transient Model

SNOM528.ZIP (1 KB) - PSpice model
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LM4041-NADJD PSpice Transient Model

SNOM391.ZIP (26 KB) - PSpice model
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LM4041-NADJD Unencrypted PSpice Transient Model

SNOM527.ZIP (1 KB) - PSpice model
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LM4041-NB1P2 PSpice Transient Model

SNOM370.ZIP (25 KB) - PSpice model
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LM4041-NB1P2 Unencrypted PSpice Transient Model

SNOM530.ZIP (1 KB) - PSpice model
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LM4041-NC1P2 PSpice Transient Model

SNOM368.ZIP (25 KB) - PSpice model
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LM4041-NC1P2 Unencrypted PSpice Transient Model

SNOM532.ZIP (1 KB) - PSpice model
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LM4041-ND1P2 PSpice Transient Model

SNOM369.ZIP (25 KB) - PSpice model
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LM4041-ND1P2 Unencrypted PSpice Transient Model

SNOM531.ZIP (1 KB) - PSpice model
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LM4041-NE1P2 PSpice Transient Model

SNOM367.ZIP (25 KB) - PSpice model
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LM4041-NE1P2 Unencrypted PSpice Transient Model

SNOM533.ZIP (1 KB) - PSpice model
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LM4041_NA1P2 TINA-TI Reference Design

SNOM428.TSC (72 KB) - TINA-TI reference design
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LM4041_NA1P2 TINA-TI Transient Spice Model

SNOM429.ZIP (8 KB) - TINA-TI Spice model
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LM4041_NADJC1P2 TINA-TI Reference Design

SNOM431.TSC (96 KB) - TINA-TI reference design
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LM4041_NADJC1P2 TINA-TI Transient Spice Model

SNOM430.ZIP (9 KB) - TINA-TI Spice model
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LM4041_NADJD1P2 TINA-TI Reference Design

SNOM424.TSC (96 KB) - TINA-TI reference design
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LM4041_NADJD1P2 TINA-TI Transient Spice Model

SNOM425.ZIP (9 KB) - TINA-TI Spice model
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LM4041_NB1P2 TINA-TI Reference Design

SNOM426.TSC (72 KB) - TINA-TI reference design
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LM4041_NB1P2 TINA-TI Transient Spice Model

SNOM427.ZIP (9 KB) - TINA-TI Spice model
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Calculation tool

SHUNT-REFERENCE-CALC — Shunt Reference Selector and Design Calculator

This tool guides the user through the design process for the TLx431 and LM40x0 family of shunt voltage references. This calculator will recommend resistance and capacitance values to optimally meet the user's desired specifications.
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Calculation tool

SHUNT_VOLTAGE_REFERENCE_RESISTOR_CALCULATOR — Shunt Voltage Reference External Resistor Quick Start Calculator

This external resistor quick-start calculator tool lets you easily calculate valid external resistor values relative to voltage reference, supply and load-current bounds. With these inputs, you can instantly view the resulting calculations and use the color-coded indications to understand (...)

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SOT-23 (DBZ) 3 Ultra Librarian
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