CERAMATE CP1117

CP1117
Low Dropout Linear Regulator
General Description
Features
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
z Low dropout voltage: 1.2V at 1A output current
z Trimmed current limit
z On-chip thermal shutdown
z Three-terminal adjustable of fixed 1.5V, 1.8V,
2.5V, 3.3V, 5V
z Operation junction temp.: 0℃ to 125℃
within 1%. Current limit is trimmed to ensure specified
Applications
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
SOT-223
z
z
z
PC Motherboard
LCD Monitor
Graphic Card
z
z
z
z
DVD-Video Player
NIC/Switch
Telecom Equipment
ADSL Modem
z
Printer and other Peripheral Equipment
TO-252
Pin Configurations
TO-252
SOT-223
VOUT
3
INPUT
2
OUTPUT
1
ADJ/GND
VOUT
3
INPUT
2
OUTPUT
1
ADJ/GND
* 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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Page 1 of 12
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
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CP1117
Low Dropout Linear Regulator
Order Information
Package
Temperature
Range
TO-252
0℃~125℃
SOT-223
Part Number
Packing Type
Marking
CP1117 ADJ-A
Tape/Reel
CP1117 ADJ-A
CP1117 1.5-A
Tape/Reel
CP1117 1.5-A
CP1117 1.8-A
Tape/Reel
CP1117 1.8-A
CP1117 2.5-A
Tape/Reel
CP1117 2.5-A
CP1117 3.3-A
Tape/Reel
CP1117 3.3-A
CP1117 5.0-A
Tape/Reel
CP1117 5.0-A
CP1117 ADJ-B
Tape/Reel
ADJ-B
CP1117 1.5-B
Tape/Reel
1.5-B
CP1117 1.8-B
Tape/Reel
1.8-B
CP1117 2.5-B
Tape/Reel
2.5-B
CP1117 3.3-B
Tape/Reel
3.3-B
CP1117 5.0-B
Tape/Reel
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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Rev 1.4 Apr.29, 2005
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CP1117
Low Dropout Linear Regulator
Absolute Maximum Ratings (Note 1)
Parameter
Value
Unit
VIN
20
V
Maximum Junction Temperature
150
Storage Temperature Range
o
C
-65 ~ 150
oC
Lead Temperature (Soldering, 10 sec.)
300
oC
ESD (Machine Model)
600
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
Min
VIN
Operating Junction Temperature Range
0
Max
Unit
15
V
125
oC
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
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Tel:886-3-3214525
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Rev 1.4 Apr.29, 2005
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CP1117
Low Dropout Linear Regulator
Electrical Characteristics
Operating Conditions: VIN≦10V, TJ =25oC unless otherwise specified.
Parameter
Reference Voltage
Output Voltage
Line Regulation
Load Regulation
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
1.238
1.225
1.250
1.250
1.264
1.270
V
1.485
1.470
1.5
1.5
1.515
1.530
V
1.782
1.746
1.8
1.8
1.818
1.854
V
2.475
2.450
2.5
2.5
2.525
2.550
V
3.267
3.235
3.3
3.3
3.333
3.365
V
4.950
4.900
5.0
5.0
5.050
5.100
V
0.035
0.2
%
1
6
mV
1
6
mV
1
6
mV
1
6
mV
1
10
mV
0.2
0.4
%
1
10
mV
1
10
mV
1
10
mV
1
10
mV
1
10
mV
* 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
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CP1117
Low Dropout Linear Regulator
Electrical Characteristics (Continued)
Operating Conditions: VIN≤10V, TJ =25oC unless otherwise specified.
Parameter
Dropout Voltage
Current Limit
Conditions
Typ
Max
Unit
∆ VREF = 1%, IOUT = 0.1Α
1.00
1.1
V
∆ VREF = 1%, IOUT = 0.5Α
1.08
1.18
V
∆ VREF = 1%, IOUT = 1.0Α
1.2
1.25
V
1.35
1.8
A
60
120
µA
VIN-VOUT = 2V
Min
1.25
Adjust Pin Current
Adjust Pin Current Change
1.4V≤ VIN-VOUT ≤ 10V, 10mA ≤ IOUT ≤ 1A
0.2
5
µA
Minimum Load Current (ADJ)
1.5V≤ VIN-VOUT ≤ 10V (ADJ only)
1.7
5
mA
Quiescent Current
VIN=VOUT +1.25V
5
10
mA
Ripple Rejection
f =120Hz, COUT =22µF Tantalum,
VIN-VOUT = 3V, IOUT =1A
Temperature Stability
Long -Term Stability
TA=125oC, 1000hrs
RMS Output Noise
(% of VOUT)
TA=25oC, 10Hz ≤ f ≤ 10kHz
Thermal Resistance,
Junction to Case
Thermal Shutdown
Thermal Shutdown Hysteresis
Junction Temperature
60
75
dB
0.5
%
0.3
%
0.003
%
15
oC/W
150
oC
25
oC
* 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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Rev 1.4 Apr.29, 2005
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CP1117
Low Dropout Linear Regulator
Typical Characteristics
0.4
1.1
OUTPUT VOLTAGE DEVIATION(%)
DROPOUT VOLTAGE(V)
1.2
o
TA=0 C
1.0
o
TA=25 C
0.9
o
TA=120 C
0.8
0.7
0.6
0.3
0.2
0.1
0.0
-0.1
0.5
0.2
0.4
0.6
0.8
0
1.0
20
40
80
100
120
o
Figure 2. Dropout Voltage vs. Output Current
Figure 3. Load Regulation vs. Temperature
1.260
3.40
1.255
1.250
OUTPUT VOLTAGE(V)
REFERENCE VOLTAGE(V)
60
AMBIENT TEMPERTURE ( C)
OUTPUT CURRENT(A)
1.245
1.240
1.235
1.230
1.225
1.220
3.35
Vout=3.3V
3.30
3.25
3.20
3.15
1.215
1.210
0
25
50
75
100
o
AMBINENT TEMPERATURE( C)
Figure 4. Reference Voltage vs. Temperature
125
3.10
0
25
50
75
100
125
o
AMBIENT TEMPERATURE ( C)
Figure 5. Output Voltage vs. Temperature
* 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
Typical Characteristics (Continued)
100
ADJUST PIN CURRENT(uA)
MINIMUM LOAD CURRENT(mA)
5
4
3
2
1
90
80
70
60
50
40
30
20
10
0
0
25
50
75
100
0
125
0
o
50
75
100
125
AMINENT TEMPERATURE( C)
Figure 7. Adjust Pin Current vs. Temperature
Figure 6. Minimum Load Current vs. Temperature
2.00
10.0
1.75
7.5
POWER(W)
SHORT-CIRCUIT CURRENT (A)
25
o
AMBIENT TEMPERATURE( C)
1.50
5.0
SOT 223
1.25
1.00
2.5
0
25
50
75
100
125
o
JUNCTION TEMPERATURE ( C)
Figure 8. Short-Circuit Current vs. Temperature
0.0
25
50
75
100
125
o
CASE TEMPERATURE( C)
Figure 9. Maximum Power Dissipation
* 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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Rev 1.4 Apr.29, 2005
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CP1117
Low Dropout Linear Regulator
Typical Characteristics (Continued)
Figure 10.Line Transient Response
Figure 11. Load Transient Response
RIPPLE REJECTION(dB)
70
60
50
40
30
20
10
100
1k
10k
100k
FREQUENCY(Hz)
Figure 12. Ripple Rejection vs. Frequency
* 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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Rev 1.4 Apr.29, 2005
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CP1117
Low Dropout Linear Regulator
Typical Applications
CP1117 -ADJ
VIN=12V
10µF
Tantalum
+
VOUT
VIN
+
9V
22µF
Tantalum
ADJ
R1
124Ω
R2
768Ω
VOUT=VREF(1+R2/R1) + IADJ . R2
CP1117 -5.0
VIN=7V
10µF
Tantalum
+
VOUT
VIN
GND
+
5V
22µF
Tantalum
Figure 13. Typical Applications of CP1117
NOTE: The lead free label will be pasted on the Reed, Box and Carton for the Lead
Free Process.
* 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 10 of 12
Rev 1.4 Apr.29, 2005
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CP1117
Low Dropout Linear Regulator
Mechanical Dimensions
Unit: mm
SOT - 223
0.90±0.15
3.50±0.20
7.00±0.30
4.00±1.00
2.30±0.10
0.30±0.05
R0.15±0.05
R0.15±0.05
0.25
±2°
12°
±2°
12°
0.71±0.10
±3°
6°
±2°
11°
±2°
12°
0.05±0.04
1.60±0.10
0.40
6.50±0.20
* 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
TO - 252
Unit: mm
6.53±0.15
2.28±0.10
5.33±0.10
0.52±0.06
0.4×45°
8°
5.46±0.10
0.80±0.15
9.80±0.30
1.20±0.12
0.51±0.03
0.07±0.05
5°
5°
0.71±0.07
10°
0.51
2.80±0.20
2.29±0.05
4°
±3°
1.58±0.18
2.29±0.05
3° ± 0.
0.6
0.8±0.05
3°±0.10
°
* 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 12 of 12
Rev 1.4 Apr.29, 2005
Fax:886-3-3521052