LM4050 - Precision Micropower Shunt Voltage Reference
Datasheet Packaging Samples & Pricing Reliability Knowledge Base

Features
Small packages: SOT-23
No output capacitor required
Tolerates capacitive loads
Fixed reverse breakdown voltages of 2.048V, 2.500V, 4.096V, 5.000V, 8.192V, and 10.000V

Key Specification


Output voltage tolerance (A grade, 25°C)±0.1% (max)
Low output noise (10 Hz to 10 kHz)41 µVrms(typ)
Wide operating current range60 µA to 15 mA
Industrial temperature range-40°C to +85°C
Extended temperature range -40°C to +125°C
Low temperature coefficient50 ppm/°C (max)

General Description


Ideal for space critical applications, the LM4050 precision voltage reference is available in the sub-miniature (3 mm x 1.3 mm) SOT-23 surface-mount package. More...


Applications


Portable, Battery-Powered Equipment
Data Acquisition Systems
Instrumentation
Process Control
Energy Management
Product Testing
Automotive
Precision Audio Components
  Typical Application
*click for larger image


ParametersValues
Initial Accuracy (+/-) Max 0.2, 0.1, 0.5 %
Reference Voltage 2.5 V, 10 V, 5 V, 4.096 V
Tempco, max (ppm/C) 50 ppm
Operating Current 0.06, 0.1, 0.068, 15, 0.074 mA
Output Current 15 mA
Temperature Min -40 deg C
Temperature Max 125, 85 deg C


Typical Performance


*click for larger image


  Also Recommended
LM4120Series (LDO) Type Voltage Reference
LM4125More Robust With Low Supply Current And Power Down Capability
LM4128Lower Temperature Coefficient, Lower Current & Better Accuracy. No Stablising Capacitors Needed
LM4132Lower Temperature Coefficient, Lower Current & Better Accuracy
LM4140Ultra High Precision Reference
Block Diagram
click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM4050 Precision Micropower Shunt Voltage Reference 281
Kbytes
27-Jul-04 Download
LM4050 Precision Micropower Shunt Voltage Reference (Japanese)
167 Kbytes   Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
Format
TypePinsSpec.MSL
Rating
Peak
Reflow
RoHS
Report
CAD
Symbols
WeeksQtyQty$US each
LM4050AEM3-4.1SOT-233NOPB
STD
1
1
260
260
RoHS Download Lifetime buyN/A
 
Buy Now
1K+$1.40reel
of
1000
RDA
XTT
8 weeks2000
LM4050AIM3-8.2SOT-233NOPB
STD
1
1
260
260
RoHS Download Lifetime buyN/A
 
Buy Now
1K+$1.25reel
of
1000
RFA
XTT
8 weeks2000
LM4050BEM3-2.0SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.97reel
of
1000
RNB
XTT
8 weeksN/A
LM4050BEM3-8.2SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.97reel
of
1000
RFB
XTT
8 weeksN/A
LM4050BIM3-10SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.82reel
of
1000
RGB
XTT
8 weeksN/A
LM4050BIM3-2.0SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.82reel
of
1000
RNB
XTT
8 weeks2000
LM4050BIM3-8.2SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.82reel
of
1000
RFB
XTT
8 weeksN/A
LM4050CEM3-10SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.93reel
of
1000
RGC
XTT
8 weeksN/A
LM4050CEM3-2.0SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.93reel
of
1000
RNC
XTT
8 weeksN/A
LM4050CEM3-4.1SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.93reel
of
1000
RDC
XTT
8 weeks2000
LM4050CIM3-2.0SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.73reel
of
1000
RNC
XTT
8 weeksN/A
LM4050CIM3-8.2SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.73reel
of
1000
RFC
XTT
8 weeks10000
LM4050AEM3-10SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$1.30reel
of
1000
RGA
XTT
8 weeks2000
LM4050AEM3-2.0SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$1.30reel
of
1000
RNA
XTT
8 weeks2000
LM4050AEM3-2.5SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$1.30reel
of
1000
RCA
XTT
8 weeks2000
LM4050AEM3-5.0SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$1.30reel
of
1000
REA
XTT
8 weeks2000
LM4050AEM3-8.2SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$1.30reel
of
1000
RFA
XTT
8 weeks2000
LM4050AIM3-10SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$1.25reel
of
1000
RGA
XTT
8 weeks2000
LM4050AIM3-2.5SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$1.25reel
of
1000
RCA
XTT
6 weeks5000
LM4050AIM3-4.1SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$1.25reel
of
1000
RDA
XTT
12 weeks5000
LM4050AIM3-5.0SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$1.25reel
of
1000
REA
XTT
8 weeks2000
LM4050BEM3-10SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.99reel
of
1000
RGB
XTT
8 weeks2000
LM4050BEM3-2.5SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.99reel
of
1000
RCB
XTT
8 weeks5000
LM4050BEM3-4.1SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.99reel
of
1000
RDB
XTT
8 weeks2000
LM4050BEM3-5.0SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.99reel
of
1000
REB
XTT
8 weeks5000
LM4050BIM3-2.5SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.95reel
of
1000
RCB
XTT
8 weeks5000
LM4050BIM3-4.1SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.95reel
of
1000
RDB
XTT
8 weeks5000
LM4050BIM3-5.0SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.95reel
of
1000
REB
XTT
8 weeks2500
LM4050CEM3-2.5SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.84reel
of
1000
RCC
XTT
8 weeks3000
LM4050CEM3-5.0SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$0.84reel
of
1000
REC
XTT
8 weeks2000
LM4050CIM3-10SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.78reel
of
1000
RGC
XTT
8 weeks2000
LM4050CIM3-2.5SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.78reel
of
1000
RCC
XTT
8 weeks2000
LM4050CIM3-4.1SOT-233NOPB1260RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.78reel
of
1000
RDC
XTT
8 weeks5000
LM4050CIM3-5.0SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.78reel
of
1000
REC
XTT
8 weeks2000
LM4050CIM3X-10SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.73reel
of
3000
RGC
XTT
8 weeksN/A
LM4050CIM3X-2.0SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.73reel
of
3000
RNC
XTT
8 weeks10000
LM4050CIM3X-8.2SOT-233NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now
1K+$0.73reel
of
3000
RFC
XTT
16 weeksN/A
LM4050BIM3X-2.0SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.95reel
of
3000
RNB
XTT
8 weeksN/A
LM4050AEM3X-10SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$1.30reel
of
3000
RGA
XTT
8 weeksN/A
LM4050AEM3X-2.5SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$1.30reel
of
3000
RCA
XTT
8 weeks5000
LM4050AEM3X-5.0SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$1.30reel
of
3000
REA
XTT
8 weeksN/A
LM4050AIM3X-2.5SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$1.25reel
of
3000
RCA
XTT
8 weeks5000
LM4050AIM3X-4.1SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$1.25reel
of
3000
RDA
XTT
8 weeks5000
LM4050AIM3X-5.0SOT-233NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$1.25reel
of
3000
REA
XTT
8 weeks5000
LM4050BEM3X-10SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.99reel
of
3000
RGB
XTT
8 weeks15000
LM4050BEM3X-2.5SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.99reel
of
3000
RCB
XTT
8 weeksN/A
LM4050BEM3X-5.0SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.99reel
of
3000
REB
XTT
8 weeks10000
LM4050BIM3X-2.5SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.95reel
of
3000
RCB
XTT
8 weeks5000
LM4050BIM3X-4.1SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.95reel
of
3000
RDB
XTT
8 weeks7500
LM4050BIM3X-5.0SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.95reel
of
3000
REB
XTT
8 weeks5000
LM4050CEM3X-2.5SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.84reel
of
3000
RCC
XTT
8 weeksN/A
LM4050CEM3X-5.0SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.84reel
of
3000
REC
XTT
8 weeks5000
LM4050CIM3X-2.5SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.78reel
of
3000
RCC
XTT
8 weeks5000
LM4050CIM3X-4.1SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.78reel
of
3000
RDC
XTT
8 weeks10000
LM4050CIM3X-5.0SOT-233NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$0.78reel
of
3000
REC
XTT
8 weeks5000

Obsolete Versions

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM4050AEM3-4.1
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050AIM3-8.2
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050BEM3-2.0
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050BEM3-8.2
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050BIM3-10
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050BIM3-2.0
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050BIM3-8.2
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050CEM3-10
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050CEM3-2.0
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050CEM3-4.1
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050CIM3-2.0
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050CIM3-8.2
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050CIM3X-10
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050CIM3X-2.0
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM4050CIM3X-8.2
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

General Description


Ideal for space critical applications, the LM4050 precision voltage reference is available in the sub-miniature (3 mm x 1.3 mm) SOT-23 surface-mount package. The LM4050's design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4050 easy to use. Further reducing design effort is the availability of several fixed reverse breakdown voltages: 2.048V, 2.500V, 4.096V, 5.000V, 8.192V, and 10.000V. The minimum operating current increases from 60 µA for the LM4050-2.0 to 100 µA for the LM4050-10.0. All versions have a maximum operating current of 15 mA.

The LM4050 utilizes fuse and zener-zap reverse breakdown voltage trim during wafer sort to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C. 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.

All grades and voltage options of the LM4050 are available in both an industrial temperature range (-40°C and +85°C) and an extended temperature range (-40°C and +125°C).

Reliability Metrics


Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM4050AEM3-10LFAST10195100026050002739175862
LM4050AEM3-2.0LFAST10195100026050002739175862
LM4050AEM3-2.5LFAST10195100026050002739175862
LM4050AEM3-4.1LFAST10195100026050002739175862
LM4050AEM3-5.0LFAST10195100026050002739175862
LM4050AEM3-8.2LFAST10195100026050002739175862
LM4050AEM3X-10LFAST10195100026050002739175862
LM4050AEM3X-2.5LFAST10195100026050002739175862
LM4050AEM3X-5.0LFAST10195100026050002739175862
LM4050AIM3-10LFAST10195100026050002739175862
LM4050AIM3-2.0LFAST10195100026050002739175862
LM4050AIM3-2.5LFAST10195100026050002739175862
LM4050AIM3-4.1LFAST10195100026050002739175862
LM4050AIM3-5.0LFAST10195100026050002739175862
LM4050AIM3-8.2LFAST10195100026050002739175862
LM4050AIM3X-2.5LFAST10195100026050002739175862
LM4050AIM3X-4.1LFAST10195100026050002739175862
LM4050AIM3X-5.0LFAST10195100026050002739175862
LM4050BEM3-10LFAST10195100026050002739175862
LM4050BEM3-2.0LFAST10195100026050002739175862
LM4050BEM3-2.5LFAST10195100026050002739175862
LM4050BEM3-4.1LFAST10195100026050002739175862
LM4050BEM3-5.0LFAST10195100026050002739175862
LM4050BEM3-8.2LFAST10195100026050002739175862
LM4050BEM3X-10LFAST10195100026050002739175862
LM4050BEM3X-2.5LFAST10195100026050002739175862
LM4050BEM3X-5.0LFAST10195100026050002739175862
LM4050BIM3-10LFAST10195100026050002739175862
LM4050BIM3-2.0LFAST10195100026050002739175862
LM4050BIM3-2.5LFAST10195100026050002739175862
LM4050BIM3-4.1LFAST10195100026050002739175862
LM4050BIM3-5.0LFAST10195100026050002739175862
LM4050BIM3-8.2LFAST10195100026050002739175862
LM4050BIM3X-2.0LFAST10195100026050002739175862
LM4050BIM3X-2.5LFAST10195100026050002739175862
LM4050BIM3X-4.1LFAST10195100026050002739175862
LM4050BIM3X-5.0LFAST10195100026050002739175862
LM4050CEM3-10LFAST10195100026050002739175862
LM4050CEM3-2.0LFAST10195100026050002739175862
LM4050CEM3-2.5LFAST10195100026050002739175862
LM4050CEM3-4.1LFAST10195100026050002739175862
LM4050CEM3-5.0LFAST10195100026050002739175862
LM4050CEM3X-2.5LFAST10195100026050002739175862
LM4050CEM3X-5.0LFAST10195100026050002739175862
LM4050CIM3-10LFAST10195100026050002739175862
LM4050CIM3-2.0LFAST10195100026050002739175862
LM4050CIM3-2.5LFAST10195100026050002739175862
LM4050CIM3-4.1LFAST10195100026050002739175862
LM4050CIM3-5.0LFAST10195100026050002739175862
LM4050CIM3-8.2LFAST10195100026050002739175862
LM4050CIM3X-10LFAST10195100026050002739175862
LM4050CIM3X-2.0LFAST10195100026050002739175862
LM4050CIM3X-2.5LFAST10195100026050002739175862
LM4050CIM3X-4.1LFAST10195100026050002739175862
LM4050CIM3X-5.0LFAST10195100026050002739175862
LM4050CIM3X-8.2LFAST10195100026050002739175862

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


[Information as of 7-Nov-2009]