LM4040/4041
Micrel, Inc.
Pin Configuration
FB
3
+
1
3–
2
Pin 3 must float or be
connected to pin 2.
Fixed Version
SOT-23 (M3) Package
Adjustable Version
SOT-23 (M3) Package
Ordering Information
Standard
Part Number
Pb-Free
LM4040CYM3-2.5
LM4040DYM3-2.5
LM4040CYM3-4.1
LM4040DYM3-4.1
LM4040CYM3-5.0
LM4040DYM3-5.0
LM4041CYM3-1.2
LM4041DYM3-1.2
LM4041CYM3-ADJ
LM4041DYM3-ADJ
Voltage
2.500V
2.500V
4.096V
4.096V
5.000V
5.000V
1.225V
1.225V
1.24V to 10V
1.24V to 10V
Accuracy,
Temp. Coefficient
±0.5%, 100ppm/°C
±1.0%, 150ppm/°C
±0.5%, 100ppm/°C
±1.0%, 150ppm/°C
±0.5%, 100ppm/°C
±1.0%, 150ppm/°C
±0.5%, 100ppm/°C
±1.0%, 150ppm/°C
±0.5%, 100ppm/°C
±1.0%, 150ppm/°C
LM4040CIM3-2.5
LM4040DIM3-2.5
LM4040CIM3-4.1
LM4040DIM3-4.1
LM4040CIM3-5.0
LM4040DIM3-5.0
LM4041CIM3-1.2
LM4041DIM3-1.2
LM4041CIM3-ADJ
LM4041DIM3-ADJ
SOT-23 Package Markings
Example
R__
Y__
Field
Code
1st Character
1st Character
R = Reference
Y = Pb-Free
Example
_2_
Field
Code
Example
__C
Field
Code
2nd Character 1 = 1.225V
2 = 2.500V
4 = 4.096V
5 = 5.000V
A = Adjustable
3rd Character C = ±0.5%
D = ±1.0%
X = ±0.5% Pb-Free
Y = ±1.0% Pb-Free
Example:
R2C represents
Reference, 2.500V,
±0.5%
(LM4040CIM3-2.5)
Example:
Y1C represents
Pb-Free, 1.225V,
±0.5%
(LM4040CYM3-1.2)
Note:
If 3rd character is omitted, container will
indicate tolerance.
M9999-031805
2
March 2005
MICREL [ MICREL SEMICONDUCTOR ]
