LM4051, LM4051C

50ppm/°C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages

Industry Standard 50ppm/°C Voltage Reference Fits in SC70


Please check latest availability status for a specific part variant.

Description

The LM4050/LM4051 are precision two-terminal, shuntmode, bandgap voltage references available in fixed reverse breakdown voltages of 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. Ideal for space-critical applications, the LM4050/LM4051 are offered in the subminiature 3-pin SC70 surface-mount packages (1.8mm x 1.8mm), 50% smaller than comparable devices in SOT23 surface-mount package (SOT23 versions are also available).

Laser-trimmed resistors ensure excellent initial accuracy. With a 50ppm/°C temperature coefficient, these devices are offered in three grades of initial accuracy ranging from 0.1% to 0.5%. The LM4050/LM4051 have a 60µA to 15mA shunt-current capability with low dynamic impedance, ensuring stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents. The LM4050/LM4051 do not require an external stabilizing capacitor while ensuring stability with any capacitive loads.

The LM4050/LM4051 specifications are guaranteed over the temperature range of -40°C to +125°C.
LM4050, LM4051: Typical Operating Circuit LM4050, LM4051: Typical Operating Circuit Enlarge+

Key Features

  • 50ppm/°C (max) Temperature Coefficient Guaranteed over the -40°C to +125°C Temperature Range
  • Ultra-Small 3-Pin SC70 Package
  • 0.1% (max) Initial Accuracy
  • Wide Operating Current Range: 60µA to 15mA
  • Low 28µVRMS Output Noise (10Hz to 10kHz)
  • 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V Fixed Reverse Breakdown Voltages
  • No Output Capacitors Required
  • Tolerates Capacitive Loads
  • AEC-Q100 Qualified, Refer to Ordering Information for the Specific /V Versions

Applications/Uses

  • Automotive
  • Cell Phones
  • Industrial Process Controls
  • Notebook Computers
  • Portable Battery-Powered Equipment
Part NumberVOUT
(V)
Temp. Coeff.
(ppm/°C)
Initial Accuracy
(% max)
IREV
(µA)
IREV
(mA)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
max@ +25°CminmaxSee Notes
LM4050A 
2.048
2.5
3
3.3
4.096
5
500.16515-40 to +125
SOIC(N)/8
$1.25 @1k
LM4050B 
2.048
2.5
3
3.3
4.096
5
0.2
SOIC(N)/8
$0.43 @1k
LM4050C 
2.048
2.5
3
3.3
4.096
5
0.5
SOIC(N)/8
$0.37 @1k
LM4051A 1.250.1
SOIC(N)/8
$1.50 @1k
LM4051B 1.250.2
SOIC(N)/8
$1.05 @1k
LM4051C 1.250.5
SOIC(N)/8
$0.99 @1k
See All Voltage References (171)
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.

Quality and Environmental Data

Product Reliability Reports: LM4051.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • LM4051AEM3-1.2+
  • LM4051AEX3-1.2+
  • LM4051AEX3-1.2+T
  • LM4051BEM3-1.2+
  • LM4051BEM3-1.2+T
  • LM4051CEM3-1.2+
  • LM4051CEM3-1.2+T
  • 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.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    MAX6078B
    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

    MAX6078A
    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