IK Semicon IL78R08 1a low dropout positive regulator Datasheet

TECHNICAL DATA
1A LOW DROPOUT POSITIVE REGULATOR
IL78RXX
Features
• 1A/3.3V, 5V, 8V, 9V, 12V, 15V output low dropout
regulator
TO-220 full-mold package (4Pin)
• Overcurrent protection ,thermal shutdown
• Overvoltage protection ,short circuit protection
• With output disable function
•
Description
The IL78RXX is a low dropout voltage regulator suitable for various electronic equipment. It
provides constant voltage power source with TO-220 4 lead full-mold package. Dropout voltage of
IL78RXX is below 0.5V in full rated current(1A). This regulator has various functions such as peak
current protection, thermal shutdown, overvoltage protection and output disable function.
Absolute Maximum Ratings
Parameter
Input voltage
Disable voltage
Output current
Power dissipation 1
Power dissipation 2
Junction temperature
Operating temperature
Symbol
Vin
Vdis
I0
Pd1
Pd2
Tj
Topr
Value
35
35
1.0
1.5
15
+150
-20 ~ +80
Unit
V
V
A
W
W
°C
°C
Remark
No heatsink
With heatsink
-
Rev. 01
IL78RXX
Internal Block Diagram
Rev. 01
IL78RXX
Electrical Characteristics
(Vin = Note 2, Io = 0.5A, Ta = 25°C, unless otherwise specified)
Parameter
Output voltage
Symbol
Conditions
Min.
Typ.
Max.
IL78R33
-
3.22
3.3
3.38
IL78R05
-
4.88
5
5.12
-
7.8
8
8.2
IL78R09
-
8.78
9
9.22
IL78R12
-
11.7
12
12.3
IL78R15
-
14.6
15
15.4
IL78R08
Vo
Unit
V
Load regulation
Rload
5mA<Io<1A
-
0.1
2.0
%
Line regulation
Rline
Note 3
-
0.5
2.5
%
RR
Note 1
45
55
-
dB
Dropout voltage
Vdrop
Io = 1A
-
-
0.5
V
Disable voltage high
VdisH
Output active
2.0
-
-
V
Disable voltage low
VdisL
Output disabled
-
-
0.8
V
Disable bias current high
IdisH
Vdis = 2.7V
-
-
20
µA
Disable bias current low
IdisL
Vdis = 0.4V
-
-
-0.4
mA
Io = 0A
-
-
10
mA
Ripple rejection ratio
Quiescent current
Iq
NOTE:
1.These parameters, although guaranteed, are not 100% tested in production.
2. IL78R33:Vin=5V
IL78R05:Vin=7V
IL78R08:Vin=10V
IL78R09:Vin=11V
IL78R12:Vin=15V
IL78R15:Vin=20V
3. IL78R33:Vin=4V to 10V
IL78R05:Vin=6V to 12V
IL78R08:Vin=9V to 25V
IL78R09:Vin=10V to 25V
IL78R12:Vin=13V to 29V
IL78R15:Vin=16V to 30V
Rev. 01
IL78RXX
Typical Perfomance Characteristics
IL78R33
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current vs. Input Voltage
Figure 3. Output Voltage vs. Disable Voltage
Figure 4. Output Voltage vs. Temperature(Tj)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs.Junction Temperature
Rev. 01
IL78RXX
Typical Perfomance Characteristics (continued)
Figure 7. Power Dissipation vs. Temperature(Tj)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
Rev. 01
IL78RXX
Typical Performance Characteristics
IL78R05C
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current vs. Input Voltage
Figure 3. Output Voltage vs. Disable Voltage
Figure 4. Output Voltage vs. Temperature(Tj)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs. Junction Temperature
Rev. 01
IL78RXX
Typical Performance Characteristics (Continued)
Figure 7. Power Dissipation vs. Temperature(Tj)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
Rev. 01
IL78RXX
Typical Performance Characteristics (Continued)
IL78R08C
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current vs. Input Voltage
Figure 3. Output Voltage vs. Disable Voltage
Figure 4. Output Voltage vs. Temperature(Tj)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs.Junction Temperature
Rev. 01
IL78RXX
Typical Performance Characteristics (Continued)
Figure 7. Power Dissipation vs. Temperature(Tj)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
Rev. 01
IL78RXX
Typical Performance Characteristics (Continued)
IL78R09C
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current vs. Input Voltage
Figure 3. Output Voltage vs. Disable Voltage
Figure 4. Output Voltage vs. Temperature(Tj)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs.Junction Temperature
Rev. 01
IL78RXX
Typical Performance Characteristics (Continued)
Figure 7. Power Dissipation vs. Temperature(Tj)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
Rev. 01
IL78RXX
Typical Performance Characteristics (Continued)
IL78R12C
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current vs. Input Voltage
Figure 3. Output Voltage vs. Disable Voltage
Figure 4. Output Voltage vs. Temperature(Tj)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs.Junction Temperature
Rev. 01
IL78RXX
Typical Performance Characteristics (Continued)
Figure 7. Power Dissipation vs. Temperature(Tj)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
Rev. 01
IL78RXX
Typical Performance Characteristics (Continued)
IL78R15C
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current vs. Input Voltage
Figure 3. Output Voltage vs. Disable Voltage
Figure 4. Output Voltage vs. Temperature(Tj)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs.Junction Temperature
Rev. 01
IL78RXX
Typical Performance Characteristics (Continued)
Figure 7. Power Dissipation vs. Temperature(Tj)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
Rev. 01
IL78RXX
Typical Application
Figure 1. Application Circuit
• Ci is required if regulator is located at an appreciable distance from power supply filter.
• Co improves stability and transient response.(Co > 47 uF)
Rev. 01
IL78RXX
TO-220F-4L Package Outline Dimensions
Rev. 01
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