Improved Precision Micropower Shunt Voltage Reference

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The LM4041 is a precision two-terminal shunt mode, bandgap voltage reference with a fixed reverse breakdown voltage of 1.225V. Ideal for space-critical applications, the LM4041 is offered in the subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm), 50% smaller than comparable devices in SOT23 surfacemount packages (SOT23 versions are also available).

Laser-trimmed resistors ensure precise initial accuracy. With a 100ppm/°C temperature coefficient, the device is offered in four grades of initial accuracy ranging from 0.1% to 1%. The LM4041 has a 60µA to 12mA shunt current capability with low dynamic impedance, ensuring stable reverse-breakdown voltage accuracy over a wide range of operating temperatures and currents.

The LM4041 does not require an external stabilizing capacitor while ensuring stability with any capacitive load.

The LM4041 is guaranteed over the temperature range -40°C to +125°C.
LM4041: Typical Operating Circuit LM4041: Typical Operating Circuit Enlarge+

Key Features

  • Ultra-Small 3-Pin SC70 Package
  • 0.1% (max) Initial Accuracy
  • 100ppm/°C (max) Temperature Coefficient Guaranteed over -40°C to +125°C Temperature Range
  • Wide Operating Current Range: 60µA to 12mA
  • Low 20µVRMS Output Noise (10Hz to 10kHz)
  • 1.225V Fixed Reverse Breakdown Voltage
  • No Output Capacitors Required
  • Tolerates Capacitive Loads


  • Cell Phones
  • Industrial Process Controls
  • Notebook Computers
  • Portable Battery-Powered Equipment
Part NumberVOUT
Temp. Coeff.
Initial Accuracy
(% max)
Oper. Temp.
max@ +25°CminmaxSee Notes
LM4041A 1.251000.16515
-40 to +85
-40 to +125
$0.95 @1k
LM4041B 1000.265
$0.65 @1k
LM4041C 1000.565
$0.37 @1k
LM4041D 150170
$0.32 @1k
See All Voltage References (170)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Related Resources

Low-Power, Low-Drift, Low-Noise Voltage Reference

  • ±0.04% Initial Accuracy
  • 10ppm/°C (Max) Temperature Drift
  • 12μVPP Noise (0.1Hz to 10Hz) at 2.5V

Low-Power, Low-Drift, Low-Noise Voltage Reference

  • ±0.04% Initial Accuracy
  • 10ppm/°C (Max) Temperature Drift
  • 12μVPP Noise (0.1Hz to 10Hz) at 2.5V