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Manufacturer Part #


LM4040 Series 4.096V ±0.5% Precision Micropower Shunt Voltage Reference-SOT-23-3

ECAD Model:
Mfr. Name: Microchip
Standard Pkg:
Product Variant Information section
Date Code: 2114
Product Specification Section
Technical Attributes
Attributes Table
Type: Shunt
Reference Voltage: 4.096V
Tolerance (%): ±0.5%
Rated Current: 15mA
Forward (Drive) Current: 10mA
Package Style:  SOT-23 (SC-59,TO-236)
Mounting Method: Surface Mount
Features & Applications

The LM4040 Series linear regulator available in fixed reverse breakdown voltages of 2.500 V, 4.096 V and 5.000 V. The LM4041 is available with a fixed 1.225 V or an adjustable reverse breakdown voltage.

The LM4040 and LM4041’s advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, making them easy to use. The minimum operating current ranges from 60 µA for the LM4041-1.2 to 74 µA for the LM4040-5.0. LM4040 versions have a maximum operating current of 15 mA. LM4041 versions have a maximum operating current of 12 mA.

The LM4040 and LM4041 utilizes zener-zap reverse breakdown voltage trim during wafer sort. Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents. The LM4040 and LM4041 precision voltage references are available in the subminiature (3  mm x 1.3 mm) SOT-23 surface-mount package.


  • Small SOT-23 package
  • No output capacitor required
  • Tolerates capacitive loads
  • Fixed reverse breakdown voltages of 1.225, 2.500 V, 4.096 V and 5.000 V
  • Adjustable reverse breakdown version
  • Contact Micrel for parts with extended temperature range.


  • Output voltage tolerance (C grade, 25°C) ±0.5% (max)
  • LM4040 35 µVRMS (typ)
  • LM4041 20 µVRMS (typ)
  • Wide operating current range
  • LM4040 60 µA to 15 mA
  • LM4041 60 µA to 12 mA
  • Industrial temperature range –40°C to +85°C
  • Low temperature coefficient 100 ppm/°C (max)


  • Battery-Powered Equipment
  • Data Acquisition Systems
  • Instrumentation
  • Process Control
  • Energy Management
  • Product Testing
  • Automotive Electronics
  • Precision Audio Components  

Learn more about the LM4040 family of linear regulators

Pricing Section
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Germany (Online Only):
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Factory Lead Time:
52 Weeks
Minimum Order:
Multiple Of:
Web Price
Product Variant Information section