CP1117
Low Dropout Linear Regulator
General Description
The CP1117 is a series of low dropout three-terminal
regulators with a dropout of 1.2V at 1A output current.
The CP1117 has an adjustable version, that can
provide the output voltage from 1.25V to 12V with only 2
external resistors.
The CP1117 series provides current limiting and
thermal shutdown. Its circuit includes a trimmed bandgap
reference to assure output voltage accuracy to be
within 1%. Current limit is trimmed to ensure specified
output current and controlled short-circuit current.
Onchip thermal shutdown provides protection against any
combination of overload and ambient temperature that
would create excessive junction temperature.
The CP1117 eries is available in the industry
standard SOT-223 power package
PC Motherboard
LCD Monitor
Graphic Card
DVD-Video Player
NIC/Switch
Telecom Equipment
ADSL Modem
Printer and other Peripheral Equipment
Features
Low dropout voltage: 1.2V at 1A output current
Trimmed current limit
On-chip thermal shutdown
Three-terminal adjustable of fixed 1.5V, 1.8V,
2.5V, 3.3V, 5V
Operation junction temp.: 0
℃
to 125
℃
Applications
SOT-223
TO-252
Pin Configurations
TO-252
3
3
V
OUT
2
1
INPUT
OUTPUT
ADJ/GND
V
OUT
2
1
OUTPUT
ADJ/GND
INPUT
SOT-223
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
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Rev 1.4 Apr.29, 2005
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CP1117
Low Dropout Linear Regulator
Functional Block Diagram
INPUT
Thermal
Shutdown
Out
+
-
OUTPUT
GND (Fixed Output)
ADJ (Adjustable Output)
Figure
1.
Functional Block Diagram of
CP1117
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
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CP1117
Low Dropout Linear Regulator
Order Information
Package
Temperature
Range
Part Number
CP1117 ADJ-A
CP1117 1.5-A
TO-252
CP1117 1.8-A
CP1117 2.5-A
CP1117 3.3-A
0
℃
~125
℃
CP1117 5.0-A
CP1117 ADJ-B
CP1117 1.5-B
SOT-223
CP1117 1.8-B
CP1117 2.5-B
CP1117 3.3-B
CP1117 5.0-B
Packing Type
Tape/Reel
Tape/Reel
Tape/Reel
Tape/Reel
Tape/Reel
Tape/Reel
Tape/Reel
Tape/Reel
Tape/Reel
Tape/Reel
Tape/Reel
Tape/Reel
Marking
CP1117 ADJ-A
CP1117 1.5-A
CP1117 1.8-A
CP1117 2.5-A
CP1117 3.3-A
CP1117 5.0-A
ADJ-B
1.5-B
1.8-B
2.5-B
3.3-B
5.0-B
CP 1117 XXX
─
X X
T: Tube
R: Reel
A: TO-252
B: SOT-223
ADJ
1.5V
1.8V
2.5V
3.3V
5.0V
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
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CP1117
Low Dropout Linear Regulator
Absolute Maximum Ratings (Note 1)
Parameter
V
IN
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
ESD (Machine Model)
Value
20
150
-65 ~ 150
300
600
Unit
V
o
C
o
C
o
C
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings " may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum
Ratings " for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
V
IN
Operating Junction Temperature Range
0
Min
Max
15
125
Unit
V
o
C
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
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CP1117
Low Dropout Linear Regulator
Electrical Characteristics
Operating Conditions: V
IN
≦10V,
T
J
=25
o
C unless otherwise specified.
Parameter
Conditions
CP1117- ADJ IOUT
= 10mΑ,
VIN-VOUT = 2V
10mA≦IOUT≦1A, 1.4V≦VIN-VOUT≦8V,
P≦Maximum Power Dissipation
CP1117-1.5, IOUT
= 10mΑ,
VIN = 3.5V
10mA≦IOUT≦1A, 3.0V≦VIN≦10V
CP1117-1.8, IOUT
= 10mΑ,
VIN = 3.8V
10mA≦IOUT≦1A, 3.2V≦VIN≦10V
CP1117-2.5, IOUT
= 10mΑ,
VIN = 4.5V
10mA≦IOUT≦1A, 3.9V≦VIN≦10V
CP1117-3.3, IOUT
= 10mΑ,
VIN = 5.0V
10mA≦IOUT≦1A, 4.75V≦VIN≦10V
CP1117-5.0, IOUT
= 10mΑ,
VIN = 7.0V
10mA≦IOUT≦1A, 6.5V≦VIN≦12V
CP1117-ADJ
IOUT = 10Ma, 1.5V≦VIN-VOUT≦10V
CP1117-1.5
IOUT = 10mA, 1.5V≦VIN-VOUT≦10V
CP1117-1.8
IOUT = 10mA, 1.5V≦VIN-VOUT≦10V
CP1117-2.5
IOUT = 10mA, 1.5V≦VIN-VOUT≦10V
CP1117-3.3
IOUT = 10mA, 1.5V≦VIN-VOUT≦10V
CP1117-5.0
IOUT = 10mA, 1.5V≦VIN-VOUT≦10V
CP1117-ADJ
VIN -VOUT = 2V, 10mA≦IOUT≦1Α
CP1117-1.5
VIN -VOUT = 2V, 10mA≦IOUT≦1Α
CP1117-1.8
VIN -VOUT = 2V, 10mA≦IOUT≦1Α
CP1117-2.5
VIN -VOUT = 2V, 10mA≦IOUT≦1Α
CP1117-3.3
VIN -VOUT = 2V, 10mA≦IOUT≦1Α
CP1117-5.0
VIN -VOUT = 2V, 10mA≦IOUT≦1Α
Min
Typ.
Max
Unit
Reference Voltage
1.238
1.225
1.485
1.470
1.782
1.746
2.475
2.450
3.267
3.235
4.950
4.900
1.250
1.250
1.5
1.5
1.8
1.8
2.5
2.5
3.3
3.3
5.0
5.0
0.035
1
1
1
1
1
0.2
1
1
1
1
1
1.264
1.270
1.515
1.530
1.818
1.854
2.525
2.550
3.333
3.365
5.050
5.100
0.2
6
6
6
6
10
0.4
10
10
10
10
10
V
V
V
V
V
V
％
mV
mV
mV
mV
mV
％
mV
mV
mV
mV
mV
Output Voltage
Line Regulation
Load Regulation
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page
5
of 12
Rev 1.4 Apr.29, 2005
Fax:886-3-3521052
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