Maxim > Products > Automotive > LM4050, LM4050A, LM4050B, ...
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   Design Resources   Ordering Info   Related Products   User Comments (0)   All   

Status Explanations for product status codes

Part Number Status
LM4050 Active: In Production.
LM4050A Active: In Production. See Ordering Information for details.
LM4050B Active: In Production. See Ordering Information for details.
LM4050C Active: In Production. See Ordering Information for details.
LM4051 Active: In Production.
LM4051A Active: In Production. See Ordering Information for details.
LM4051B Active: In Production. See Ordering Information for details.
LM4051C Active: In Production. See Ordering Information for details.

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 this datasheet in PDF formatDownload Rev 7 (PDF, 442.6kB)
Send this datasheet to any email addressEmail

My Maxim: Not Logged In
By logging in to My Maxim you can subscribe to alerts for this data sheet.

Login | Register

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
 

Applications/Uses

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

Key Specifications:

Voltage References
Part Number VOUT
(V)
Temp. Coeff.
(ppm/°C)
Initial Accuracy
(% max)
IREV
(µA)
IREV
(mA)
Oper. Temp.
(°C)
Budgetary
Price
max @ +25°C min max See Notes
LM4050A 
2.048
2.5
3
3.3
4.096
5
50 0.1 65 15 -40 to +125 $1.25 @1k
LM4050B 
2.048
2.5
3
3.3
4.096
5
0.2 $0.82 @1k
LM4050C 
2.048
2.5
3
3.3
4.096
5
0.5 $0.73 @1k
LM4051A  1.25 0.1 $1.25 @1k
LM4051B  1.25 0.2 $0.82 @1k
LM4051C  1.25 0.5 $0.73 @1k
See All Voltage References (174)

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

More Information

Topmark Coding LM4050
Topmark Coding LM4051
New Product Press Release   2002-08-16 ]

Didn't Find What You Need?

Information Index

Document Ref.: 19-2563 Rev 7; 2013-03-21
This page last modified: 2013-03-21