SM79L18
Elektronische Bauelemente
3-Terminal
Negative
Voltage Regulator
Description
The SM79L18 is monolithic fixed voltage regulator integrated
circuit. They are suitable for applications that required supply
current up to 100mA.
SOT-89
Features
* Short Circuit Current Limiting
* Output Current Up To 100mA
* Thermal Overload Shutdown Protection
Millimeter
Min.
Max.
4.4
4.6
4.05
4.25
1.50
1.70
1.30
1.50
2.40
2.60
0.89
1.20
Millimeter
Min.
Max.
3.00 REF.
1.50 REF.
0.40
0.52
1.40
1.60
0.35
0.41
5° TYP.
0.70 REF.
REF.
A
B
C
D
E
F
REF.
G
H
I
J
K
L
M
Absolute Maximum Ratings
Parameter
Input Voltage
Output Current
Operating Junction Temperature Range
Storage Temperature Range
Total Power Dissipation
Symbol
V
IN
I
O
Tj
Tstg
P
D
Ratings
-35
100
0~+125
-55~+150
350
Unit
V
mA
o
C
C
o
mW
Application
Circuit
SM79L18
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 1 of
2
SM79L18
Elektronische Bauelemente
3-Terminal
Negative
Voltage Regulator
Electrical Characteristics at Ta=25 C
V
I
=-27 V,I
O
=40mA,Tj=25 C, C
IN
=0.33uF, C
OUT
=0.1uF unless otherwise specified
Rank A (3%)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
o
o
V
O
V
O
-V
IN
(Line Regulation)
V
O
-I
O
(Load Regulation)
I
Q
Quiescent Current
V
NO
Noise Voltage
Output
RR
Ripple Rejection
-17.46
_
_
_
_
-18
54
23
3.5
410
60
-18.54
300
170
6
_
_
V
mV
mV
mA
uV
dB
V
IN
=-27V,I
O
=40mA
V
IN
=-20.5V~-33V,I
O
=40mA
V
IN
=-27V,I
O
=1~100mA
V
IN
=-27V,I
O
=40mA
V
IN
=-27V,BW=10Hz~100KHz,I
O
=40mA
V
IN
=-23V~-33V,I
O
=40mA,E
IN
=1V
P
-
P
,f=230Hz
33
V
I
=-27 V,I
O
=40mA,Tj=25 C, C
IN
=0.33uF, C
OUT
=0.1uF unless otherwise specified
Rank B (5%)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
o
V
O
V
O
-V
IN
(Line Regulation)
V
O
-I
O
(Load Regulation)
I
Q
Quiescent Current
V
NO
Output Noise Voltage
RR
Ripple Rejection
-17.1
_
_
_
_
-18
54
23
3.5
410
60
-18.9
300
170
6
_
_
V
mV
mV
mA
uV
dB
V
IN
=-27V,I
O
=40mA
V
IN
=-20.5V~-33V,I
O
=40mA
V
IN
=-27V,I
O
=1~100mA
V
IN
=-27V,I
O
=40mA
V
IN
=-27V,BW=10Hz~100KHz,I
O
=40mA
V
IN
=-23V~-33V,I
O
=40mA,E
IN
=1V
P
-
P
,f=230Hz
33
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 2 of
2
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