19-1704; Rev 0; 4/00
Improved Precision Micropower
Shunt Voltage Reference
General Description
Features
The LM4041 is a precision two-terminal shunt mode,
bandgap voltage reference with a fixed reverse break-
down voltage of 1.225V. Ideal for space-critical appli-
cations, the LM4041 is offered in the subminiature 3-pin
ꢀ Ultra-Small 3-Pin SC70 Package
ꢀ 0.1% max Initial Accuracy
ꢀ 100ppm/°C max Temperature Coefficient
Guaranteed over -40°C to +85°C Temperature
Range
✕
SC70 surface-mount package (1.8mm 1.8mm), 50%
smaller than comparable devices in SOT23 surface-
mount packages (SOT23 versions are also available).
ꢀ Wide Operating Current Range: 60µA to 12mA
Laser-trimmed resistors ensure precise initial accuracy.
With a 100ppm/°C temperature coefficient, the device
is offered in four grades of initial accuracy ranging from
0.1% to 1%. The LM4041 has a 60µA to 12mA shunt
current capability with low dynamic impedance, ensur-
ing stable reverse breakdown voltage accuracy over a
wide range of operating temperatures and currents.
ꢀ Low 20µV
Output Noise (10Hz to 10kHz)
RMS
ꢀ 1.225V Fixed Reverse Breakdown Voltage
ꢀ No Output Capacitors Required
ꢀ Tolerates Capacitive Loads
The LM4041 does not require an external stabilizing
capacitor while ensuring stability with any capacitive
load.
Ordering Information
TEMP.
RANGE
PIN-
PACKAGE
TOP
MARK
PART*
LM4041AIX3-1.2
LM4041AIM3-1.2
LM4041BIX3-1.2
LM4041BIM3-1.2
LM4041CIX3-1.2
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
3 SC70-3
3 SOT23-3
ABF
FZEB
ABG
FZEC
ABH
FZED
ABI
________________________Applications
Portable, Battery-Powered Equipment
Notebook Computers
LM4041CIM3-1.2 -40 C to +85 C
LM4041DIX3-1.2 -40 C to +85 C
LM4041DIM3-1.2 -40 C to +85 C
Cell Phones
Industrial Process Controls
FZEE
*See Selector Guide for a listing of LM4041 Output Voltage,
Initial Accuracy, and Temperature Coefficient specifications.
Selector Guide
Pin Configuration
OUTPUT
VOLTAGE ACCURACY
INITIAL
TOP VIEW
TEMPCO
(ppm/ C)
PART
(V)
(%)
+
1
2
LM4041AIM3-1.2
LM4041AIX3-1.2
LM4041BIM3-1.2
LM4041BIX3-1.2
LM4041CIM3-1.2
LM4041CIX3-1.2
LM4041DIM3-1.2
LM4041DIX3-1.2
1.225
1.225
1.225
1.225
1.225
1.225
1.225
1.225
0.1
0.1
0.2
0.2
0.5
0.5
1.0
1.0
100
100
100
100
100
100
150
150
3
N.C.*
LM4041
-
SC70-3/SOT23-3
*PIN 3 MUST BE LEFT FLOATING
OR CONNECTED TO PIN 2.
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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