Fairchild Semiconductor MC78M24, MC78M05, MC78M15, MC78M08, LM78M05 Datasheet
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MC78MXX/LM78MXX
3-Terminal 0.5A Positive Voltage Regulator
Features
• 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
Internal Block Digram
Description
The MC78MXX/LM78MXX series of three-terminal
positive regulators are available in the TO-220/D-PAK
package with s everal fixed ou tput voltag es making it useful
in a wide range of applications.
TO-220
1
D-PAK
1
1. Input 2. GND 3. Output
GND
GND
INPUT
1
CURRENT
GENERATOR
STARTING
CIRCUIT
©2002 Fairchild Semiconductor Corporation
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
SOA
PROTECTION
THERMAL
PROTECTION
SERIES
PASS
ELEMENT
OUTPUT
3
R1
R2
GND
2
Rev. 1.0.5
MC78MXX/LM78MXX
Absolute Maximum Ratings
Parameter Symbol Value Unit
Input Voltage (for V
(for V
= 24V)
O
= 5V to 18V)
O
Thermal Resistance Junction-Case (Note1)
TO-220 (Tc = +25°C)
V
I
V
I
R
θJC
35
40
2.5 °C/W
Thermal Resistance Junction-Air (Note1, 2)
TO-220 (Ta = +25°C)
D-PAK (Ta = +25°C)
Operating Junction Temperature Range T
Storage Temperature Range T
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
R
θJA
OPR
STG
66
°C/W
92
0 ~ +150 °C
-65 ~ +150 °C
Electrical Characteristics (MC78M05/LM78M05)
<
(Refer to the test circuits, 0
T
J
<
+125°C, I
=350mA, VI=10V, unless otherwise specified, CI = 0.33µF, CO=0.1µF)
O
V
V
Parameter Symbol Conditions Min. Typ. Max. Unit
TJ = +25°C 4.855.2
Output Voltage V
Line Regulation (Note3) ∆V
Load Regulation (Note3) ∆V
Quiescent Current I
O
O
= 5mA to 350mA
I
O
V
= 7V to 20V
I
IO = 200mA
T
=+25°C
J
4.75 5 5.25
= 7V to 25V - - 100
V
I
= 8V to 25V - - 50
V
I
IO = 5mA to 0.5A, TJ =+25°C - - 100
O
Q
= 5mA to 200mA, TJ =+25 °C- - 50
I
O
TJ =+25°C-4.06.0mA
V
mV
mV
IO = 5mA to 350mA - - 0.5
Quiescent Current Change ∆I
Q
Output Voltage Drift ∆V/∆T
Output Noise Voltage V
N
Ripple Rejection RR
Dropout Voltage V
Short Circuit Current I
Peak Current I
D
SC
PK
= 200mA
I
O
V
= 8V to 25V
I
I
= 5mA
O
T
= 0 to +125°C
J
--0.8
--0.5-mV/°C
f = 10Hz to 100kHz - 40 f = 120Hz, I
V
= 8V to 18V, TJ =+25 °C
I
= 300mA
O
-80- dB
TJ =+25°C, IO = 500mA - 2 - V
TJ =+25°C, VI = 35V - 300 - mA
TJ =+25°C - 700 - mA
mA
µ
V/Vo
Note:
3. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.
2
due to heating effects must be taken
o
MC78MXX/LM78MXX
Electrical Characteristics (MC78M06)
(Refer to the test circuits, 0
< TJ < +125°C, IO=350mA, VI =11V, unless otherwise specified, CI=0.33µF, CO=0.1µF)
(Continued)
Parameter Symbol Conditions Min. Typ. Max. Unit
TJ = +25°C 5.75 6 6.25
Output Voltage V
Line Regulation (Note1) ∆V
Load Regulation (Note1) ∆V
Quiescent Current I
O
O
= 5mA to 350mA
I
O
V
= 8V to 21V
I
IO = 200mA
T
= +25°C
J
5.7 6 6.3
V
= 8V to 25V - - 100
I
= 9V to 25V - - 50
V
I
IO = 5mA to 0.5A, TJ = +25°C - - 120
O
Q
= 5mA to 200mA, TJ = +25°C- -60
I
O
TJ = +25°C-4.06.0mA
IO = 5mA to 350mA - - 0.5
Quiescent Current Change ∆I
Output Voltage Drift ∆V/∆T
Output Noise Voltage V
Ripple Rejection RR
Dropout Voltage V
Short Circuit Current I
Peak Current I
SC
PK
Q
N
D
= 200mA
I
O
V
= 9V to 25V
I
I
= 5mA
O
T
= 0 to +125°C
J
--0.8
--0.5-mV/°C
f = 10Hz to 100kHz - 45 f = 120Hz, I
V
= 9V to 19V, TJ =+25 °C
I
= 300mA
O
-80-dB
TJ =+25°C, IO = 500mA - 2 - V
TJ = +25°C, VI= 35V - 300 - mA
TJ =+25°C - 700 - mA
µ
V
mV
mV
mA
V/Vo
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.
due to heating effects must be taken
o
3
MC78MXX/LM78MXX
Electrical Characteristics (MC78M08)
(Refer to the test circuits, 0
< TJ < +125°C, IO=350mA, VI=14V, unless otherwise specified, CI = 0.33µF, CO=0.1µF)
(Continued)
Parameter Symbol Conditions Min. Typ. Max. Unit
TJ =+25°C7.788.3
Output Voltage V
Line Regulation (Note1) ∆V
Load Regulation (Note1) ∆V
Quiescent Current I
O
O
= 5mA to 350mA
I
O
V
= 10.5V to 23V
I
IO = 200mA
T
=+25°C
J
7.6 8 8.4
V
= 10.5V to 25V - - 100
I
= 11V to 25V - - 50
V
I
IO = 5mA to 0.5A, TJ =+25°C - - 160
O
Q
= 5mA to 200mA, TJ =+25°C--80
I
O
TJ = +25°C-4.06.0mA
IO = 5mA to 350mA - - 0.5
Quiescent Current Change ∆I
Output Voltage Drift RR
Output Noise Voltage V
Ripple Rejection RR
Dropout Voltage V
Short Circuit Current I
Peak Current I
SC
PK
Q
N
D
= 200mA
I
O
V
= 10.5V to 25V
I
I
= 5mA
O
T
= 0 to +125°C
J
--0.8
- −0.5 - mV/°C
f = 10Hz to 100kHz - 52 f = 120Hz, I
V
= 11.5V to 21.5V, TJ =+25 °C
I
= 300mA
O
-80-dB
TJ = +25°C, IO = 500mA - 2 - V
TJ = +25°C, VI = 35V - 300 - mA
TJ = +25°C - 700 - mA
µ
V
mV
mV
mA
V/Vo
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.
due to heating effects must be taken
O
4
MC78MXX/LM78MXX
Electrical Characteristics (MC78M12)
(Continued)
(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=19V, unless otherwise specified, CI =0.33µF, CO=0.1µF)
Parameter Symbol Conditions Min. Typ. Max. Unit
TJ = +25°C 11.5 12 12.5
Output Voltage V
Line Regulation (Note1) ∆V
Load Regulation (Note1) ∆V
Quiescent Current I
O
O
= 5mA to 350mA
I
O
V
= 14.5V to 27V
I
IO = 200mA
T
= +25°C
J
11.4 12 12.6
V
= 14.5V to 30V - - 100
I
= 16V to 30V - - 50
V
I
IO = 5mA to 0.5A, TJ = +25°C - - 240
O
Q
= 5mA to 200mA, TJ = +25°C - - 120
I
O
TJ =+25°C-4.16.0mA
V
mV
mV
IO = 5mA to 350mA - - 0.5
Quiescent Current Change ∆I
Q
Output Voltage Drift ∆V/∆T
Output Noise Voltage V
N
Ripple Rejection RR
Dropout Voltage V
Short Circuit Current I
Peak Current I
D
SC
PK
= 200mA
I
O
V
= 14.5V to 30V
I
I
= 5mA
O
T
= 0 to +125°C
J
--0.8
--0.5-mV/°C
f = 10Hz to 100kHz - 75 f = 120Hz, I
V
= 15V to 25V, TJ =+25 °C
I
= 300mA
O
-80-dB
TJ =+25°C, IO = 500mA - 2 - V
TJ = +25°C, VI = 35V - 300 - mA
TJ = +25°C - 700 - mA
mA
µ
V/Vo
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.
due to heating effects must be taken
o
5
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