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LM4040
Document number: DS33195 Rev. 7 - 2
1 of 12
www.diodes.com
February 2017
© Diodes Incorporated
LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCES
Description
The LM4040 is a family of bandgap circuits designed to achieve
precision micro-power voltage references of 2.5V, 3.0V and 5.0V. The
devices are available in 0.2% B-grade, 0.5% C-grade and 1% D-
grade initial tolerances.
They are available in small outline SOT23 surface mount packages
which are ideal for applications where space is at a premium.
Excellent performance is maintained over the 60µA to 15mA
operating current range with a typical temperature coefficient of only
20ppm/°C. The device has been designed to be highly tolerant of
capacitive loads so maintaining excellent stability.
This device offers a pin for pin compatible alternative to the LM4040
voltage reference.
Features
Small Package: SOT23
SC70-5 Variants Are End of Life (EOL)
No Output Capacitor Required
Output Voltage Tolerance
LM4040B ±0.2% at +25°C
LM4040C ±0.5% at +25°C
LM4040D ±1% at +25°C
Low Output Noise
(10Hz to 10kHz) .............. 45µV
RMS
Wide Operating Current Range 60µA to 15mA
Extended Temperature Range -40°C to +125°C
Low Temperature Coefficient 100 ppm/°C (max)
Green Molding in Small Package SOT23
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
An Automotive-Compliant Part is Available Under Separate
Datasheet (LM4040Q)
Applications
Battery Powered Equipment
Precision Power Supplies
Portable Instrumentation
Portable Communications Devices
Notebook and Palmtop Computers
Data Acquisition Systems
Pin Assignments
(Top View)
* Pin 3 must be left floating or connected to pin 2
SOT23
Anode
*
Cathode
N/C
N/C
1
2
3
4
5
LM4040 H5 (SC70-5)
Top View
* Pin 2 must be left floating or connected to pin 1
* Pin 2 must be left floating or connected to pin 1.
** SC70-5 variants are End of Life (EOL).
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
(Top View)
SC70-5**
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