LRC
LESHAN RADIO COMPANY,LTD.
3-Terminal 0.5A Positive Voltage Regulator
LR78MXX
Features
Description
•
•
•
•
•
*
The LR78MXX series of three-terminal
positive regulators are available in the TO-220/D-PAK
package with several fixed output voltages making it useful
in a wide range of applications.
Output Current up to 0.5A
Output Voltages of 5, 6, 8, 12, 15, 18, 24V
Thermal Overload Protection
Short Circuit Protection
Output Transistor Safe Operating Area (SOA)Protection
We declare that material of product compliance
with ROHS requirements.
TO-220
GND
1
Order Information
D-PAK
GND
LR78MXXD: D-PAK(TO252)
LR78MXX:
TO-220
1
1. Input 2. GND 3. Output
Internal Block Digram
INPUT
SERIES
PASS
ELEMENT
1
SOA
PROTECTION
CURRENT
GENERATOR
STARTING
CIRCUIT
REFERENCE
VOLTAGE
OUTPUT
3
R1
ERROR
AMPLIFIER
R2
THERMAL
PROTECTION
GND
2
LR78MXX Ver1.0
1/11
LRC
LESHAN RADIO COMPANY,LTD.
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
VI
VI
35
40
V
V
Thermal Resistance Junction-Case (Note1)
TO-220 (Tc = +25°C)
RθJC
2.5
°C/W
Thermal Resistance Junction-Air (Note1, 2)
TO-220 (Ta = +25°C)
D-PAK (Ta = +25°C)
RθJA
66
92
°C/W
Operating Junction Temperature Range
TOPR
0 ~ +150
°C
Storage Temperature Range
TSTG
-65 ~ +150
°C
Input Voltage (for VO = 5V to 18V)
(for VO = 24V)
Note:
1. Thermal resistance test board
Size: 76.2mm * 114.3mm * 1.6mm(1S0P)
JEDEC standard: JESD51-3, JESD51-7
2. Assume no ambient airflow
Electrical Characteristics (LR78M05)
(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=10V, unless otherwise specified, CI = 0.33µF, CO=0.1µF)
Parameter
Output Voltage
Symbol
VO
Line Regulation (Note3)
∆VO
Load Regulation (Note3)
∆VO
Quiescent Current
Quiescent Current Change
Output Voltage Drift
IQ
∆IQ
∆V/∆T
Conditions
Min.
Typ.
Max.
TJ = +25°C
4.8
5
5.2
IO = 5mA to 350mA
VI = 7V to 20V
4.75
5
5.25
VI = 7V to 25V
-
-
100
VI = 8V to 25V
-
-
50
IO = 5mA to 0.5A, TJ =+25°C
-
-
100
IO = 5mA to 200mA, TJ =+25 °C
-
-
50
TJ =+25°C
-
4.0
6.0
IO = 5mA to 350mA
-
-
0.5
IO = 200mA
VI = 8V to 25V
-
-
0.8
IO = 5mA
TJ = 0 to +125°C
-
-0.5
-
mV/°C
IO = 200mA
TJ =+25°C
Unit
V
mV
mV
mA
mA
Output Noise Voltage
VN
f = 10Hz to 100kHz
-
40
-
µV/Vo
Ripple Rejection
RR
f = 120Hz, IO = 300mA
VI = 8V to 18V, TJ =+25 °C
-
80
-
dB
Dropout Voltage
VD
TJ =+25°C, IO = 500mA
-
2
-
V
Short Circuit Current
ISC
TJ =+25°C, VI = 35V
-
300
-
mA
Peak Current
IPK
TJ =+25°C
-
700
-
mA
Note:
3. Load and line regulation are specified at constant junction temperature. Change in Vo due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX Ver1.0
2/11
LRC
LESHAN RADIO COMPANY,LTD.
Electrical Characteristics (LR78M06) (Continued)
(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI =11V, unless otherwise specified, CI=0.33µF, CO=0.1µF)
Parameter
Output Voltage
Symbol
VO
Line Regulation (Note1)
∆VO
Load Regulation (Note1)
∆VO
Quiescent Current
Quiescent Current Change
Output Voltage Drift
IQ
∆IQ
∆V/∆T
Conditions
Min.
Typ.
Max.
TJ = +25°C
5.75
6
6.25
IO = 5mA to 350mA
VI = 8V to 21V
5.7
6
6.3
VI = 8V to 25V
-
-
100
VI = 9V to 25V
-
-
50
IO = 5mA to 0.5A, TJ = +25°C
-
-
120
IO = 5mA to 200mA, TJ = +25°C
-
-
60
TJ = +25°C
-
4.0
6.0
IO = 5mA to 350mA
-
-
0.5
IO = 200mA
VI = 9V to 25V
-
-
0.8
IO = 5mA
TJ = 0 to +125°C
-
-0.5
-
mV/°C
IO = 200mA
TJ = +25°C
Unit
V
mV
mV
mA
mA
Output Noise Voltage
VN
f = 10Hz to 100kHz
-
45
-
µV/Vo
Ripple Rejection
RR
f = 120Hz, IO = 300mA
VI = 9V to 19V, TJ =+25 °C
-
80
-
dB
Dropout Voltage
VD
TJ =+25°C, IO = 500mA
-
2
-
V
Short Circuit Current
ISC
TJ = +25°C, VI= 35V
-
300
-
mA
Peak Current
IPK
TJ =+25°C
-
700
-
mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in Vo due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX Ver1.0
3/11
LRC
LESHAN RADIO COMPANY,LTD.
Electrical Characteristics (LR78M08) (Continued)
(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=14V, unless otherwise specified, CI = 0.33µF, CO=0.1µF)
Parameter
Output Voltage
Symbol
VO
Line Regulation (Note1)
∆VO
Load Regulation (Note1)
∆VO
Quiescent Current
IQ
Conditions
Min.
Typ.
Max.
TJ =+25°C
7.7
8
8.3
IO = 5mA to 350mA
VI = 10.5V to 23V
7.6
8
8.4
VI = 10.5V to 25V
-
-
100
VI = 11V to 25V
-
-
50
IO = 5mA to 0.5A, TJ =+25°C
-
-
160
IO = 5mA to 200mA, TJ =+25°C
-
-
80
TJ = +25°C
-
4.0
6.0
IO = 5mA to 350mA
-
-
0.5
IO = 200mA
VI = 10.5V to 25V
-
-
0.8
IO = 200mA
TJ =+25°C
Unit
V
mV
mV
mA
Quiescent Current Change
∆IQ
Output Voltage Drift
RR
IO = 5mA
TJ = 0 to +125°C
-
−0.5
-
mV/°C
Output Noise Voltage
VN
f = 10Hz to 100kHz
-
52
-
µV/Vo
Ripple Rejection
RR
f = 120Hz, IO = 300mA
VI = 11.5V to 21.5V, TJ =+25 °C
-
80
-
dB
Dropout Voltage
VD
TJ = +25°C, IO = 500mA
-
2
-
V
Short Circuit Current
ISC
TJ = +25°C, VI = 35V
-
300
-
mA
Peak Current
IPK
TJ = +25°C
-
700
-
mA
mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX Ver1.0
4/11
LRC
LESHAN RADIO COMPANY,LTD.
Electrical Characteristics (LR78M12) (Continued)
(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=19V, unless otherwise specified, CI =0.33µF, CO=0.1µF)
Parameter
Output Voltage
Symbol
Min.
Typ.
Max.
TJ = +25°C
11.5
12
12.5
IO = 5mA to 350mA
VI = 14.5V to 27V
11.4
12
12.6
VI = 14.5V to 30V
-
-
100
VI = 16V to 30V
-
-
50
IO = 5mA to 0.5A, TJ = +25°C
-
-
240
IO = 5mA to 200mA, TJ = +25°C
-
-
120
TJ =+25°C
-
4.1
6.0
IO = 5mA to 350mA
-
-
0.5
∆IQ
IO = 200mA
VI = 14.5V to 30V
-
-
0.8
∆V/∆T
IO = 5mA
TJ = 0 to +125°C
-
-0.5
-
mV/°C
VO
Line Regulation (Note1)
∆VO
Load Regulation (Note1)
∆VO
Quiescent Current
Quiescent Current Change
Output Voltage Drift
IQ
Conditions
IO = 200mA
TJ = +25°C
Unit
V
mV
mV
mA
mA
Output Noise Voltage
VN
f = 10Hz to 100kHz
-
75
-
µV/Vo
Ripple Rejection
RR
f = 120Hz, IO = 300mA
VI = 15V to 25V, TJ =+25 °C
-
80
-
dB
Dropout Voltage
VD
TJ =+25°C, IO = 500mA
-
2
-
V
Short Circuit Current
ISC
TJ = +25°C, VI = 35V
-
300
-
mA
Peak Current
IPK
TJ = +25°C
-
700
-
mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in Vo due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX Ver1.0
5/11
LRC
LESHAN RADIO COMPANY,LTD.
Electrical Characteristics (LR78M15) (Continued)
(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=23V, unless otherwise specified, CI =0.33µF, CO=0.1µF)
Parameter
Output Voltage
Symbol
Min.
Typ.
Max.
TJ = +25°C
14.4
15
15.6
IO = 5mA to 350mA
VI = 17.5V to 30V
14.25
15
15.75
VI = 17.5V to 30V
-
-
100
VI = 20V to 30V
-
-
50
IO = 5mA to 0.5A, TJ =+25°C
-
-
300
IO = 5mA to 200mA, TJ =+25°C
-
-
150
TJ = +25°C
-
4.1
6.0
IO = 5mA to 350mA
-
-
0.5
∆IQ
IO = 200mA
VI = 17.5V to 30V
-
-
0.8
∆V/∆T
IO = 5mA
TJ = 0 to +125°C
-
-1
-
mV/°C
VO
Line Regulation (Note1)
∆VO
Load Regulation (Note1)
∆VO
Quiescent Current
Quiescent Current Change
Output Voltage Drift
IQ
Conditions
IO = 200mA
TJ =+25°C
Unit
V
mV
mV
mA
mA
Output Noise Voltage
VN
f = 10Hz to 100kHz
-
100
-
µV/Vo
Ripple Rejection
RR
f = 120Hz, IO = 300mA
VI = 18.5V to 28.5V, TJ =+25 °C
-
70
-
dB
Dropout Voltage
VD
TJ =+25°C, IO = 500mA
-
2
-
V
Short Circuit Current
ISC
TJ = +25°C, VI = 35V
-
300
-
mA
Peak Current
IPK
TJ = +25°C
-
700
-
mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX Ver1.0
6/11
LRC
LESHAN RADIO COMPANY,LTD.
Electrical Characteristics (LR78M18) (Continued)
(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=26V, unless otherwise specified, CI =0.33µF, CO=0.1µF)
Parameter
Min. Typ.
Max.
TJ = +25°C
17.3
18
18.7
IO = 5mA to 350mA
VI = 20.5V to 33V
17.1
18
18.9
VI = 21V to 33V
-
-
100
VI = 24V to 33V
-
-
50
IO = 5mA to 0.5A, TJ = +25°C
-
-
360
IO = 5mA to 200mA, TJ = +25°C
-
-
180
TJ = +25°C
-
4.2
6.0
IO = 5mA to 350mA
-
-
0.5
IO = 200mA
VI = 21V to 33V
-
-
0.8
IO = 5mATJ = 0 to 125°C
-
-1.1
-
mV/°C
VN
f = 10Hz to 100kHz
-
100
-
µV/Vo
Ripple Rejection
RR
f = 120Hz, IO= 300mA , VI = 22V to 32V
TJ =+25 °C
-
70
-
dB
Dropout Voltage
VD
TJ = +25°C, IO = 500mA
-
2
-
V
Short Circuit Current
ISC
TJ = +25°C, VI = 35V
-
300
-
mA
Peak Current
IPK
TJ = +25°C
-
700
-
mA
Output Voltage
Symbol
VO
Line Regulation (Note1)
∆VO
Load Regulation (Note1)
∆VΟ
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
IQ
∆IQ
∆V/∆T
Conditions
IO = 200mA
TJ = +25°C
Unit
V
mV
mV
mA
mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX Ver1.0
7/11
LRC
LESHAN RADIO COMPANY,LTD.
Electrical Characteristics (LR78M24) (Continued)
(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=33V, unless otherwise specified, CI =0.33µF, CO=0.1µF)
Parameter
Symbol
Conditions
TJ =+25°C
Output Voltage
VO
23
24
25
22.8
24
25.2
Unit
V
-
100
-
-
50
IO = 5mA to 0.5A, TJ =+25°C
-
-
480
IO = 5mA to 200mA, TJ =+25°C
-
-
240
TJ = +25°C
-
4.2
6.0
IO = 5mA to 350mA
-
-
0.5
∆IQ
IO = 200mA
VI = 27V to 38V
-
-
0.8
∆V/∆T
IO = 5mA
TJ = 0 to +125°C
-
-1.2
-
mV/°C
Load Regulation (Note1)
∆VO
Output Voltage Drift
Max.
-
∆VO
Quiescent Current Change
Typ.
IO = 200mA VI = 27V to 38V
TJ =+25°C VI = 28V to 38V
Line Regulation (Note1)
Quiescent Current
IO = 5mA to 350mA
VI = 27V to 38V
Min.
IQ
mV
mV
mA
mA
Output Noise Voltage
VN
f = 10Hz to 100kHz
-
170
-
µV/Vo
Ripple Rejection
RR
f = 120Hz, IO = 300mA
VI = 28V to 38V, TJ =+25 °C
-
70
-
dB
Dropout Voltage
VD
TJ = +25°C, IO = 500mA
-
2
-
V
Short Circuit Current
ISC
TJ = +25°C, VI = 35V
-
300
-
mA
Peak Current
IPK
TJ = +25°C
-
700
-
mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
LR78MXX Ver1.0
8/11
LRC
LESHAN RADIO COMPANY,LTD.
Mechanical Dimensions
Package
Dimensions in millimeters
TO-220
4.50 ±0.20
2.80 ±0.10
(3.00)
+0.10
1.30 –0.05
18.95MAX.
(3.70)
ø3.60 ±0.10
15.90 ±0.20
1.30 ±0.10
(8.70)
(1.46)
9.20 ±0.20
(1.70)
9.90 ±0.20
1.52 ±0.10
0.80 ±0.10
2.54TYP
[2.54 ±0.20]
10.08 ±0.30
(1.00)
13.08 ±0.20
)
(45°
1.27 ±0.10
+0.10
0.50 –0.05
2.40 ±0.20
2.54TYP
[2.54 ± 0.20]
10.00 ±0.20
LR78MXX Ver1.0
9/11
LRC
LESHAN RADIO COMPANY,LTD.
Mechanical Dimensions (Continued)
Package
Dimensions in millimeters
D-PAK
MIN0.55
0.91 ±0.10
9.50 ±0.30
0.50 ±0.10
0.76 ±0.10
0.50 ±0.10
1.02 ±0.20
2.30TYP
[2.30±0.20]
(1.00)
(3.05)
(2XR0.25)
(0.10)
2.70 ±0.20
6.10 ±0.20
9.50 ±0.30
6.60 ±0.20
(5.34)
(5.04)
(1.50)
(0.90)
2.30 ±0.20
(0.70)
2.30TYP
[2.30± 0.20]
(0.50)
2.30 ±0.10
0.89 ±0.10
MAX0.96
(4.34)
2.70 ±0.20
0.80 ±0.20
0.60 ±0.20
(0.50)
6.10 ±0.20
5.34 ±0.30
0.70 ±0.20
6.60 ±0.20
0.76 ±0.10
LR78MXX Ver1.0
10/11
LRC
LESHAN RADIO COMPANY,LTD.
Product Marking
L78M05
YYWW
L78M08
YYWW
1
1
2
2
3
D-PAK
(TO-252)
3
TO-220
Ordering Information
Product Number
Type
Ship Min Package
LR78M05
LR78M06
LR78M08
LR78M12
TO-220
50 Units/ Tube
D-PAK
2500 Units/ Reel
LR78M15
LR78M18
LR78M24
LR78M05D
LR78M06D
LR78M08D
LR78M12D
LR78MXX Ver1.0
11/11
工商网监
湘ICP备2023018690号
