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KA79MXX/LM79M05
3-Terminal 0.5A Negative Voltage Regulator
Description
circuits
designed as fixed voltage regulators. These regulators
compensation
indestructible.
TO-220
Features
• No external components required
• Output current in excess of 0.5A
• Internal thermal overload
• Internal short circuit current limiting
• Output transistor safe area compensation
• Output voltages of -5V,-6V,-8V, -12V,-15V,-18V,-24V
The KA79MXX series and LM79M05 are of 3-Terminal medium
current
negative voltage regulators are monolithic integrated
employ internal current limiting, thermal shutdown and safe area
making
them
essentially
1
D-PAK
1
1. GND 2. Input 3. Output
Schematic Diagram
Rev. 1.0.0
©2001 Fairchild Semiconductor Corporation
KA79MXX
Absolute Maximum Ratings
Parameter
Input Voltage(for V
O
= -5V to -18V)
(for V
O
= -24V)
Thermal Resistance Junction-Cases
Thermal Resistance Junction-Air
Operating Temperature Range
Storage Temperature Range
Symbol
V
I
V
I
R
θJC
R
θJA
T
OPR
T
STG
Value
-35
-40
5
65
0 ~ +125
-65 ~ +125
Unit
V
V
°C
/W
°C
/W
°C
°C
Electrical Characteristics
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
Note:
(KA79M05/KA79M05R/LM79M05)
Conditions
T
J
= +25
°C
V
O
I
O
= 5mA to 350mA
V
I
= -V7 to -25V
T
J
=+25°C
V
I
= -7V to -25V
V
I
= -8V to -25V
Min.
-4.8
-4.75
-
-
-
-
--0
-
-4
54
-
-
-
-0.2
0-
∝V
60
1.1
140
650
-
-
-
-
dB
V
mA
mA
Typ.
-5
-5
7.0
2.0
30
3. 0
-
Max.
-5.2
-5.25
50
30
100
6. 0
0.4
.4
-
mA
mV/
°C
V
mV
mV
mA
Unit
(Refer to test circuit, 0
°C
≤T
J
≤
+125
°C,
l
O
=350mA, V
I
=-10V,unless otherwise specified, C
I
=0.33∝
F,CO
=0.1∝F)
Symbol
ΔV
O
ΔV
O
I
Q
ΔI
Q
I
O
= 5mA to 500mA
T
J
= +25
°C
T
J
= +25
°C-
I
O
= 5mA to 350mA
I
O
= 200mA
V
I
= -8V to -25V
f = 10Hz, 100KHz
T
A
= +25
°C
f = 120Hz
V
J
= -8Vto -18V
Δ
Vo/
ΔTI
O
= 5mA
V
N
RR
V
D
I
SC
I
PK
T
J
=+25
°C,
I
O
= 500mA
T
J
= +25
°C,
V
I
= -35V
T
J
= +25
°C
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.
2
KA79MXX
Electrical Characteristics (KA79M06)
(Refer to test circuit, 0
°C
≤T
J
≤
+125
°C,
l
O
=350mA, V
I
= -11V,unless otherwise specified)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
Note:
Symbol
T
J
= +25
°C
V
O
Conditions
I
O
= 5mA to 350mA
V
I
= -8.0V to -25V
T
J
=+25°C
V
I
= -8Vto -25V
V
I
= -9V to -19V
Min.
- 5.75
- 5.7
-
-
-
-
-
-
54
-
-
Typ.
- 6.0
- 6.0
7.0
2.0
30
3
-
-
0.4
Max.
- 6.25
Unit
V
- 6.3
60
40
120
6
0.4
0.4
-
-
-
-
-
mA
mV/
°C
dB
V
mA
mA
mV
mV
mA
ΔV
O
ΔV
O
I
Q
ΔI
Q
T
J
= +25
°CI
O
= 5.0mA to 500mA
T
J
= +25
°C-
I
O
= 5mA to 350mA
V
I
= -8V to -25V
f = 10Hz to 100KHz,T
A
= +25
°C-5
f = 120Hz,V
I
= -9V to -19V
I
O
= 500mA, T
J
= +25
°C-
V
I
= -35V, T
J
= +25
°C
T
J
= +25
°C
ΔV
O
/ΔTI
O
= 5mA
V
N
RR
V
D
I
SC
I
PK
0-∝V
60
1.1
140
650
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.
3
KA79MXX
Electrical Characteristics (KA79M08/KA79M08R)
(Refer to test circuit, 0
°C
≤T
J
≤
+125
°C,
l
O
=350mA, V
I
= -14V,unless otherwise specified)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
Note:
Symbol
T
J
= +25
°C
V
O
Conditions
I
O
= 5mA to 350mA
V
I
= -10.5V to -25V
T
J
=+25°C
V
I
= -10.5V to -25V
V
I
= -11V to -21V
Min.
- 7.7
- 7.6
-
-
-
-
-
-
54
-
-
Typ.
- 8.0
- 8.0
7.0
2.0
30
3
-
-
-0.6
Max.
- 8.3
Unit
V
- 8.4
80
50
160
6
0.4
0.4
-
-
-
-
-
mA
mV/
°C
dB
V
mA
mA
mV
mV
mA
ΔV
O
ΔV
O
I
Q
ΔI
Q
T
J
= +25
°CI
O
= 5.0mA to 500mA
T
J
= +25
°C-
I
O
= 5mA to 350mA
V
I
= -8V to -25V
f = 10Hz to 100KHz,T
A
= +25
°C-6
f = 120Hz,V
I
= -9V to -19V
I
O
= 500mA, T
J
= +25
°C-
V
I
= -35V, T
J
= +25
°C
T
J
= +25
°C
ΔV
O
/ΔTI
O
= 5mA
V
N
RR
V
D
I
SC
I
PK
0-∝V
59
1.1
140
650
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.
4
KA79MXX
Electrical Characteristics (KA79M12)
(Refer to test circuit, 0
°C
≤T
J
≤
+125
°C,
l
O
=350mA, V
I
= -19V,unless otherwise specified)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
Note:
Symbol
T
J
= +25
°C
V
O
Conditions
I
O
= 5mA to 350mA
V
I
= -14.5V to -30V
T
J
=+25°C
V
I
= -14.5V to -30V
V
I
= -15V to -25V
Min.
-11.5
-11.4
-
-
-
-
-
-
54
-
-
Typ.
-12
-12
8.0
3.0
30
3
-
-
-0.8
Max.
-12.5
Unit
V
-12.6
80
50
240
6
0.4
0.4
-
-
-
-
-
mA
mV/
°C
dB
V
mA
mA
mV
mV
mA
ΔV
O
ΔV
O
I
Q
ΔI
Q
T
J
= +25
°CI
O
= 5.0mA to 500mA
T
J
= +25
°C-
I
O
= 5mA to 350mA
V
I
= -14.5V to -30V
f = 10Hz to 100KHz,T
A
=+25
°C-7
f = 120Hz,V
I
= -15V to -25V
I
O
= 500mA, T
J
= +25
°C-
V
I
= -35V, T
J
= +25
°C
T
J
= +25
°C
ΔV
O
/ΔTI
O
= 5mA
V
N
RR
V
D
I
SC
I
PK
5-∝V
60
1.1
140
650
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.
5
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