LM4040_14 Datasheet, PDF (1/17 Pages) Micrel Semiconductor – Precision Micropower Shunt Voltage Reference

LM4040/LM4041
Precision Micropower Shunt Voltage
Reference
General Description
Ideal for space critical applications, the LM4040 and
LM4041 precision voltage references are available in the
subminiature (3mm × 1.3mm) SOT-23 surface-mount
package.
The LM4040 is available in fixed reverse breakdown
voltages of 2.500V, 4.096V, and 5.000V. The LM4041 is
available with a fixed 1.225V or an adjustable reverse
breakdown voltage.
The minimum operating current ranges from 60μA for the
LM4041-1.2 to 74μA for the LM4040-5.0. LM4040 versions
have a maximum operating current of 15mA. LM4041
versions have a maximum operating current of 12mA.
The LM4040 and LM4041 have bandgap reference
temperature drift curvature correction and low dynamic
impedance, ensuring stable reverse breakdown voltage
accuracy over a wide range of operating temperatures and
currents.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com.
Features
 Small SOT-23 package
 No output capacitor required
 Tolerates capacitive loads
 Fixed reverse breakdown voltages of 1.225, 2.500V,
4.096V, and 5.000V
 Adjustable reverse breakdown version
 Contact Micrel for parts with extended temperature
range.
Applications
 Battery-powered equipment
 Data acquisition systems
 Instrumentation
 Process control
 Energy management
 Product testing
 Automotive electronics
 Precision audio components
Typical Application
LM4040, LM4041 Fixed Shunt
Regulator Application
LM4041 Adjustable Shunt
Regulator Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
June 24, 2014
Revision 3.0