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
LM4120▲Series (LDO) Type Voltage Reference
LM4125▲More Robust With Low Supply Current And Power Down Capability
LM4128▲Lower Temperature Coefficient, Lower Current & Better Accuracy. No Stablising Capacitors Needed
LM4132▲Lower Temperature Coefficient, Lower Current & Better Accuracy
LM4140▲Ultra 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]