Continental Device India Limited
An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company
3-TERMINAL POSITIVE VOLTAGE REGULATOR
LM7818
TO-220
Plastic Package
The Voltages available allow these Regulators to be used in Logic Systems, Instrumentation, Hi-Fi Audio
Circuits and other Solid State Electronic Equipment
ABSOLUTE MAXIMUM RATINGS
SYMBOL
VALUE
DESCRIPTION
UNIT
V
IN
35
Input Voltage
V
Power Dissipation at T
a
=25ºC
P
D
2
W
P
D
Power Dissipation at T
c
=25ºC
15
W
Operating Free Air, Case, or Virtual
T
j
0 to +150
ºC
JunctionTemperature Range
T
stg
Storage Temperature Range
- 65 to +150
ºC
Lead Temperature 1.6mm (1/16 inch) from
T
L
260
ºC
Case for 10 seconds
Recommended Operating Conditions
DESCRIPTION
Input Voltage
Output Current
Operating Junction Temperature
V
I
=27V, I
O
=500mA, T
a
=25ºC
DESCRIPTION
Output Voltage
SYMBOL
V
I
I
O
T
j
MIN
21
0
TYP
MAX
33
1.5
125
UNIT
V
A
ºC
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise)
SYMBOL
V
O
TEST CONDITION
25ºC
I
O
=5mA ~ 1A
V
IN
=21 ~ 33V, P <15W, 0ºC
~125ºC
V
IN
=21 ~ 33V, 25ºC
V
IN
=24 ~ 30V, 25ºC
V
IN
=22 ~ 32V, f=120Hz,
0ºC~125ºC
I
O
=5mA ~ 1.5A , 25ºC
I
O
=250mA ~ 750mA , 25ºC
f=1KHz, 0ºC~125ºC
I
O
=5mA, 0ºC~125ºC
f=10Hz ~100KHz, 25ºC
I
O
=1A , 25ºC
25ºC
V
IN
=21 ~ 33V, 0ºC~125ºC
I
O
=5mA ~ 1A, 0ºC~125ºC
25ºC
25ºC
MIN
17.3
17.1
TYP
MAX
18.7
18.9
360
180
53
360
180
0.022
-1.0
110
2.0
8.0
1.0
0.5
200
2.1
UNIT
V
V
mV
mV
dB
mV
mV
Ω
mV/ºC
µV
V
mA
mA
mA
mA
A
Line Regulation
Ripple Rejection
Load Regulation
Output Resistance
Temperature Coefficient of Output Voltage
Output Noise Voltage
Dropout Voltage
Quiescent Current
Quiescent Current Change
Short Circuit Output Current
Peak Output Current
LM7818Rev100706E
R
EGV
R
R
R
EGL
r
O
∆V
O
/∆T
V
NO
V
DIF (min)
I
Q
∆I
QIN
I
SC
I
omax
Continental Device India Limited
Data Sheet
Page 1 of 2
Customer Notes
LM7818
TO-220
Plastic Package
Component Disposal Instructions
1. CDIL Semiconductor Devices are RoHS compliant, customers are requested to please
dispose as per prevailing Environmental Legislation of their Country.
2.
In Europe, please dispose as per EU Directive 2002/96/EC on Waste Electrical and
Electronic Equipment (WEEE).
Disclaimer
The product information and the selection guides facilitate selection of the CDIL's Semiconductor Device(s) best suited for
application in your product(s) as per your requirement. It is recommended that you completely review our Data Sheet(s) so as to
confirm that the Device(s) meet functionality parameters for your application. The information furnished in the Data Sheet and on
the CDIL Web Site/CD are believed to be accurate and reliable. CDIL however, does not assume responsibility for inaccuracies or
incomplete information. Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any CDIL
product; neither does it convey any license under its patent rights nor rights of others. These products are not designed for use in
life saving/support appliances or systems. CDIL customers selling these products (either as individual Semiconductor Devices or
incorporated in their end products), in any life saving/support appliances or systems or applications do so at their own risk and
CDIL will not be responsible for any damages resulting from such sale(s).
CDIL strives for continuous improvement and reserves the right to change the specifications of its products without prior notice.
CDIL is a registered Trademark of
Continental Device India Limited
C-120 Naraina Industrial Area, New Delhi 110 028, India.
Telephone + 91-11-2579 6150, 4141 1112 Fax + 91-11-2579 5290, 4141 1119
email@cdil.com
www.cdilsemi.com
LM7818Rev100706E
Continental Device India Limited
Data Sheet
Page 2 of 2
PCB Design
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