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Maxim > Products > Voltage References > LM4050, LM4050A, LM4050B, ...

LM4050, LM4050A, LM4050B, LM4050C, LM4051, LM4051A, LM4051B, LM4051C

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

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

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

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.

Data Sheet

Download	Rev 6	(PDF, 247.9kB)
E-Mail

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 28µV_RMS 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

Applications/Uses

Cell Phones
Industrial Process Controls
Notebook Computers
Portable Battery-Powered Equipment

Key Specifications:

Voltage References

Part Number

V_OUT
(V)

Temp. Coeff.
(ppm/°C)

Initial Accuracy
(% max)

I_REV
(µA)

I_REV
(mA)

Oper. Temp.
(°C)

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

max

@ +25°C

min

max

max w/pins

See Notes

LM4050A

2.048

2.5

3.3

4.096

0.1

-40 to +125

SC70/3

SOT/3

5.3

$1.25 @1k

LM4050B

2.048

2.5

3.3

4.096

0.2

SC70/3

SOT/3

$0.82 @1k

LM4050C

2.048

2.5

3.3

4.096

0.5

SC70/3

SOT/3

$0.73 @1k

LM4051A

1.25

0.1

SC70/3

SOT/3

$1.25 @1k

LM4051B

1.25

0.2

SC70/3

SOT/3

$0.82 @1k

LM4051C

1.25

0.5

SC70/3

SOT/3

$0.73 @1k

See All Voltage References (168)

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 prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

LM4050, LM4051: Typical Operating Circuit

Typical Operating Circuit

LM4050, LM4051: Pin Configuration

Pin Configuration

Application Notes

Tutorial 719

Understanding Voltage-Reference Topologies and Specifications

Product Guides

Signal Chain (PDF)

Reliability Reports

Reliability Report:	LM4050.pdf LM4051.pdf LM4051A.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Devices: 1-50 / 169

<-- Previous 1 2 3 4 Next -->

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
LM4050AEM3-2.1+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEM3-2.1+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEM3-2.1-T			Active	SOT; Land Pattern: Not Available	-40°C to +125°C	See data sheet
LM4050AEM3-2.5+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEM3-2.5+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEM3-2.5-T			Active	SOT; Land Pattern: Not Available	-40°C to +125°C	See data sheet
LM4050AEM3-3.0+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEM3-3.0+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEM3-3.0-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AEM3-4.1+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
LM4050AEM3-4.1-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AEM3-5.0+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEM3-5.0+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEM3-5.0-T			Active	SOT; Land Pattern: Not Available	-40°C to +125°C	See data sheet
LM4050AEX3-2.1+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-2.1+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-2.1-T			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
LM4050AEX3-2.5+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-2.5+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-2.5-T			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
LM4050AEX3-3.0+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-3.0-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AEX3-3.3			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AEX3-3.3+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-3.3+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-3.3-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AEX3-3.3/V+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-4.1+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-4.1-T			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
LM4050AEX3-5.0+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
LM4050AEX3-5.0+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AEX3-5.0-T			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
LM4050AIM3-2.1+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AIM3-2.1-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AIM3-2.5+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AIM3-2.5-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AIM3-3.0-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AIM3-4.1+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AIM3-4.1-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AIM3-5.0+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
LM4050AIM3-5.0-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AIX3-2.1-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AIX3-2.5-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AIX3-3.0-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AIX3-4.1+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
LM4050AIX3-4.1-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050AIX3-5.0-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
LM4050BEM3-2.1+T			Active	SOT; Land Pattern: Not Available	-40°C to +125°C	See data sheet
LM4050BEM3-2.1-T			Active	SOT; Land Pattern: Not Available	-40°C to +125°C	See data sheet
LM4050BEM3-2.5+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis

Devices: 1-50 / 169

<-- Previous 1 2 3 4 Next -->

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Document Ref.: 19-2563 Rev 6; 2011-10-18
This page last modified: 2011-10-18

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

Status

Description

Data Sheet

Key Features

Applications/Uses

Key Specifications:

Diagram

Application Notes

Product Guides

Reliability Reports

Software/Models

Ordering Information

Similar Products by Function

Similar Products by Application

More Information

Didn't Find What You Need?

Information Index

Overview

Technical Documents

Ordering Info

Related Products