Fairchild Semiconductor MC78M06 Datasheet
©2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.5
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)Prote ction
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 us eful
in a wide range of applications.
TO-220
D-PAK
1. Input 2. GND 3. Output
1
1
GND
GND
Internal Block Digram
OUTPUT
3
R1
R2
GND
2
1
INPUT
SERIES
PASS
ELEMENT
SOA
PROTECTION
CURRENT
GENERATOR
STARTING
CIRCUIT
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
THERMAL
PROTECTION
MC78MXX/LM78MXX
3-Terminal 0.5A Positive Voltage Regulator
MC78MXX/LM78MXX
2
Absolute Maximum Ratings
Note:
1. Thermal resistance test board
Size: 76.2mm * 11 4.3mm * 1.6mm(1S0P)
JEDEC standard: JESD51-3, JESD51-7
2. Assume no ambient airflow
Electrical Characteristics (MC78M05/LM78M05)
(Refer to the test circuits, 0
<
T
J
<
+125°C, I
O
=350mA, VI=10V, unless otherwise specified, CI = 0.33µF, CO=0.1µF)
Note:
3. Load and line regulation are specified at constant junction temperature. Change in V
o
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
Parameter Symbol Value Unit
Input Voltage (for V
O
= 5V to 18V)
(for V
O
= 24V)
V
I
V
I
35
40
V
V
Thermal Resistance Junction-Case (Note1)
TO-220 (Tc = +25°C)
R
θJC
2.5 °C/W
Thermal Resistance Junction-Air (Note1, 2)
TO-220 (Ta = +25°C)
D-PAK (Ta = +25°C)
R
θJA
66
92
°C/W
Operating Junction Temperature Range T
OPR
0 ~ +150 °C
Storage Temperature Range T
STG
-65 ~ +150 °C
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage V
O
TJ = +25°C 4.855.2
V
I
O
= 5mA to 350mA
V
I
= 7V to 20V
4.75 5 5.25
Line Regulation (Note3) ∆V
O
IO = 200mA
T
J
=+25°C
V
I
= 7V to 25V - - 100
mV
V
I
= 8V to 25V - - 50
Load Regulation (Note3) ∆V
O
IO = 5mA to 0.5A, TJ =+25°C - - 100
mV
I
O
= 5mA to 200mA, TJ =+25 °C- - 50
Quiescent Current I
Q
TJ =+25°C-4.06.0mA
Quiescent Current Change ∆I
Q
IO = 5mA to 350mA - - 0.5
mA
I
O
= 200mA
V
I
= 8V to 25V
--0.8
Output Voltage Drift ∆V/∆T
I
O
= 5mA
T
J
= 0 to +125°C
--0.5-mV/°C
Output Noise Voltage V
N
f = 10Hz to 100kHz - 40 -
µ
V/Vo
Ripple Rejection RR
f = 120Hz, I
O
= 300mA
V
I
= 8V to 18V, TJ =+25 °C
-80- dB
Dropout Voltage V
D
TJ =+25°C, IO = 500mA - 2 - V
Short Circuit Current I
SC
TJ =+25°C, VI = 35V - 300 - mA
Peak Current I
PK
TJ =+25°C - 700 - mA
MC78MXX/LM78MXX
3
Electrical Characteristics (MC78M06)
(Continued)
(Refer to the test circuits, 0
< TJ < +125°C, IO=350mA, VI =11V, unless otherwise specified, CI=0.33µF, CO=0.1µF)
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
o
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage V
O
TJ = +25°C 5.75 6 6.25
V
I
O
= 5mA to 350mA
V
I
= 8V to 21V
5.7 6 6.3
Line Regulation (Note1) ∆V
O
IO = 200mA
T
J
= +25°C
V
I
= 8V to 25V - - 100
mV
V
I
= 9V to 25V - - 50
Load Regulation (Note1) ∆V
O
IO = 5mA to 0.5A, TJ = +25°C - - 120
mV
I
O
= 5mA to 200mA, TJ = +25°C- -60
Quiescent Current I
Q
TJ = +25°C-4.06.0mA
Quiescent Current Change ∆I
Q
IO = 5mA to 350mA - - 0.5
mA
I
O
= 200mA
V
I
= 9V to 25V
--0.8
Output Voltage Drift ∆V/∆T
I
O
= 5mA
T
J
= 0 to +125°C
--0.5-mV/°C
Output Noise Voltage V
N
f = 10Hz to 100kHz - 45 -
µ
V/Vo
Ripple Rejection RR
f = 120Hz, I
O
= 300mA
V
I
= 9V to 19V, TJ =+25 °C
-80-dB
Dropout Voltage V
D
TJ =+25°C, IO = 500mA - 2 - V
Short Circuit Current I
SC
TJ = +25°C, VI= 35V - 300 - mA
Peak Current I
PK
TJ =+25°C - 700 - mA
MC78MXX/LM78MXX
4
Electrical Characteristics (MC78M08)
(Continued)
(Refer to the test circuits, 0
< TJ < +125°C, IO=350mA, VI=14V, unless otherwise specified, CI = 0.33µF, CO=0.1µF)
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
O
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage V
O
TJ =+25°C7.788.3
V
I
O
= 5mA to 350mA
V
I
= 10.5V to 23V
7.6 8 8.4
Line Regulation (Note1) ∆V
O
IO = 200mA
T
J
=+25°C
V
I
= 10.5V to 25V - - 100
mV
V
I
= 11V to 25V - - 50
Load Regulation (Note1) ∆V
O
IO = 5mA to 0.5A, TJ =+25°C - - 160
mV
I
O
= 5mA to 200mA, TJ =+25°C--80
Quiescent Current I
Q
TJ = +25°C-4.06.0mA
Quiescent Current Change ∆I
Q
IO = 5mA to 350mA - - 0.5
mA
I
O
= 200mA
V
I
= 10.5V to 25V
--0.8
Output Voltage Drift RR
I
O
= 5mA
T
J
= 0 to +125°C
- −0.5 - mV/°C
Output Noise Voltage V
N
f = 10Hz to 100kHz - 52 -
µ
V/Vo
Ripple Rejection RR
f = 120Hz, I
O
= 300mA
V
I
= 11.5V to 21.5V, TJ =+25 °C
-80-dB
Dropout Voltage V
D
TJ = +25°C, IO = 500mA - 2 - V
Short Circuit Current I
SC
TJ = +25°C, VI = 35V - 300 - mA
Peak Current I
PK
TJ = +25°C - 700 - mA
MC78MXX/LM78MXX
5
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)
Note:
1. Load and line regulation are specified at constant junction temperature. Change in V
o
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
Parameter Symbol Conditions Min. Typ. Max. Unit
Output Voltage V
O
TJ = +25°C 11.5 12 12.5
V
I
O
= 5mA to 350mA
V
I
= 14.5V to 27V
11.4 12 12.6
Line Regulation (Note1) ∆V
O
IO = 200mA
T
J
= +25°C
V
I
= 14.5V to 30V - - 100
mV
V
I
= 16V to 30V - - 50
Load Regulation (Note1) ∆V
O
IO = 5mA to 0.5A, TJ = +25°C - - 240
mV
I
O
= 5mA to 200mA, TJ = +25°C - - 120
Quiescent Current I
Q
TJ =+25°C-4.16.0mA
Quiescent Current Change ∆I
Q
IO = 5mA to 350mA - - 0.5
mA
I
O
= 200mA
V
I
= 14.5V to 30V
--0.8
Output Voltage Drift ∆V/∆T
I
O
= 5mA
T
J
= 0 to +125°C
--0.5-mV/°C
Output Noise Voltage V
N
f = 10Hz to 100kHz - 75 -
µ
V/Vo
Ripple Rejection RR
f = 120Hz, I
O
= 300mA
V
I
= 15V to 25V, TJ =+25 °C
-80-dB
Dropout Voltage V
D
TJ =+25°C, IO = 500mA - 2 - V
Short Circuit Current I
SC
TJ = +25°C, VI = 35V - 300 - mA
Peak Current I
PK
TJ = +25°C - 700 - mA
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