2002. 9. 24 1/9
SEMICONDUCTOR
TECHNICAL DATA
KIA79M05F~KIA79M15F
BIPOLAR LINEAR INTEGRATED CIRCUIT
Revision No : 2
THREE TERMINAL NEGATIVE VOLTAGE REGULATORS
-5V, -8V, -12V, -15V.
KIA79M
Series of three-terminal regulators is available with
fixed output voltages of -5V, -8V, -12V, and -15V.
These devices need only one external component-a compensation
capacitor at the output. The KIA79MXX series is packaged in the
DPAK power package, and is capable of supplying 0.5A of output
current. These regulators employ internal current limiting, safe area
protection, and thermal shutdown for protection against virtually
all overload conditions.
Low ground pin current of the KIA79MXX series allows output
voltage to be easily boosted above the preset value with a resistor
divider. The low quiescent current of these devices with a specified
maximum change with line and load ensures good regulation in the
voltage boosted mode.
FEATURES
Thermal, Short Circuit and Safe Area Protection.
High Ripple Rejection.
0.5A Output Current
4% Tolerance on Preset Output Voltage.
MAXIMUM RATINGS (Ta=25 )
CHARACTERISTIC SYMBOL RATING UNIT
Input Voltage
V
IN
-35 V
Power Dissipation
TC=25
P
D
12
W
Without
Heatsink
1.3
Operating Junction Temperature
T
j
-40 150
Storage Temperature
T
stg
-55 150
Soldering Temperature (10 seconds)
T
sol
260
A
C
Q
H
F
123
1. GND
2. INPUT
3. OUTPUT
F
I
J
D
B
M
K
E
P
DIM MILLIMETERS
A
B
C
D
E
F
H
I
O
J
K
L
L
_
6.60 0.2
+
_
+
6.10 0.2
_
5.0 0.2
+
_
1.10 0.2
+
_
2.70 0.2
+
_
2.30 0.1
+
1.00 MAX
_
+
2.30 0.2
_
+
0.50 0.1
_
2.00 0.20
+
_
0.50 0.10
+
_
+
0.91 0.10M
_
+
0.90 0.1O
_
+
1.00 0.10P
0.95 MAXQ
DPAK
2002. 9. 24 2/9
KIA79M05F~KIA79M15F
Revision No : 2
EQUIVALENT CIRCUIT
Q
R
0
Q
4
Q
5
Q
R
6
2
R
3
Q
8
Q
9
R
4
Q
7
26
Q
2
Q
3
R
25
Q
Q
12
Q
26-1
30
R
14
R
17
R
19
R
20
R
24
Q
29
R
1
Q
18
Q
19
Q
20
Q
31
Q
23
Q
25
Q
28
Q
17
R
16
R
23
R
15
R
18
Q
21
R
21
Q
22
Q
24
R
22
INPUT
Q
R
5
C
Q
10
Q
11
R
6
R
8
2
C
1
R
7
Q
14
R
9
Q
15
Q
16
27-1
Q
13
Q
27
R
R
10
R
11
13
R
12
GND
OUTPUT
2002. 9. 24 3/9
KIA79M05F~KIA79M15F
Revision No : 2
ELECTRICAL CHARACTERISTICS
KIA79M05F
(unless otherwise specified : VIN=-10V, I
OUT
=350mA, CIN=0.33 F, C
OUT
=1 F)
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Output Voltage
V
O
Tj=25
-4.8 -5.0 -5.2
V
5mA IO350mA,
-7V
VIN-25V
-4.75 -5.0 -5.25
Line Regulation
V
Reg
Line
-7V VIN-25V, Tj=25
- 7 50
mV
-8V VIN-18V, Tj=25
- 2 30
Load Regulation
V
Reg
Load
5mA IO500mA, Tj=25
- 30 100 mV
Quiescent Current
I
B
Tj=25
- 4 6 mA
Quiescent Current Change
I
B
5mA IO350mA
- - 0.4 mA
-8V VIN-25V
- - 0.4 mA
Output Noise Voltage
V
NO
f=10Hz 100kHz, Tj=25
- 40 -
V
Ripple Rejection
R R
f=120Hz, -8V VIN-18V
55 60 - dB
Dropout Voltage
V
D
IO=500mA, Tj=25
- 1.1 - V
Short Circuit Current
I
SC
Tj=25
- 800 - mA
Output Voltage Drift
VO/ T IO=5mA, Tj=0 125
- -0.5 -
mV/
2002. 9. 24 4/9
KIA79M05F~KIA79M15F
Revision No : 2
ELECTRICAL CHARACTERISTICS
KIA79M08F
(unless otherwise specified : VIN=-14V, I
OUT
=350mA, CIN=0.33 F, C
OUT
=1 F)
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Output Voltage
V
O
Tj=25
-7.7 -8.0 -8.3
V
5mA IO350mA,
-10V
VIN-25V
-7.6 -8.0 -8.4
Line Regulation
V
Reg
Line
-10V VIN-25V, Tj=25
- 7 80
mV
-11V VIN-21V, Tj=25
- 2 50
Load Regulation
V
Reg
Load
5mA IO500mA, Tj=25
- 30 160 mV
Quiescent Current
I
B
Tj=25
- 4 6 mA
Quiescent Current Change
I
B
5mA IO350mA
- - 0.4 mA
-10V VIN-25V
- - 0.4 mA
Output Noise Voltage
V
NO
f=10Hz 100kHz, Tj=25
- 60 -
V
Ripple Rejection
R R
f=120Hz, -11V VIN-21V
55 60 - dB
Dropout Voltage
V
D
IO=500mA, Tj=25
- 1.1 - V
Short Circuit Current
I
SC
Tj=25
- 800 - mA
Output Voltage Drift
VO/ T IO=5mA, Tj=0 125
- -0.65 -
mV/
2002. 9. 24 5/9
KIA79M05F~KIA79M15F
Revision No : 2
ELECTRICAL CHARACTERISTICS
KIA79M12F
(unless otherwise specified : VIN=-19V, I
OUT
=350mA, CIN=0.33 F, C
OUT
=1 F)
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Output Voltage
V
O
Tj=25
-11.5 -12 -12.5
V
5mA IO350mA,
-14.5V
VIN-27V
-11.4 -12 -12.6
Line Regulation
V
Reg
Line
-14.5V VIN-30V, Tj=25
- 5 80
mV
-15V VIN-25V, Tj=25
- 3 50
Load Regulation
V
Reg
Load
5mA IO500mA, Tj=25
- 30 240 mV
Quiescent Current
I
B
Tj=25
- 4 6 mA
Quiescent Current Change
I
B
5mA IO350mA
- - 0.4 mA
-14.5V VIN-30V
- - 0.4 mA
Output Noise Voltage
V
NO
f=10Hz 100kHz, Ta=25
- 75 -
V
Ripple Rejection
R R
f=120Hz, -15V VIN-25V
55 60 - dB
Dropout Voltage
V
D
IO=500mA, Tj=25
- 1.1 - V
Short Circuit Current
I
SC
Tj=25
- 800 - mA
Output Voltage Drift
VO/ T IO=5mA, Tj=0 125
- -0.8 -
mV/
2002. 9. 24 6/9
KIA79M05F~KIA79M15F
Revision No : 2
ELECTRICAL CHARACTERISTICS
KIA79M15F
(unless otherwise specified : VIN=-23V, I
OUT
=350mA, CIN=0.33 F, C
OUT
=1 F)
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Output Voltage
V
O
Tj=25
-14.4 -15 -15.6
V
5mA IO350mA,
-18V
VIN-30V
-14.25 -15 -15.75
Line Regulation
V
Reg
Line
-17.5V VIN-30V, Tj=25
- 5 80
mV
-18V VIN-28V, Tj=25
- 3 50
Load Regulation
V
Reg
Load
5mA IO500mA, Tj=25
- 30 240 mV
Quiescent Current
I
B
Tj=25
- 4 6 mA
Quiescent Current Change
I
B
5mA IO350mA
- - 0.4 mA
-17.5V VIN-30V
- - 0.4 mA
Output Noise Voltage
V
NO
f=10Hz 100kHz, Ta=25
- 90 -
V
Ripple Rejection
R R
f=120Hz, -18V VIN-30V
55 60 - dB
Dropout Voltage
V
D
IO=500mA, Tj=25
- 1.1 - V
Short Circuit Current
I
SC
Tj=25
- 800 - mA
Output Voltage Drift
VO/ T IO=5mA, Tj=0 125
- -1.0 -
mV/
2002. 9. 24 7/9
KIA79M05F~KIA79M15F
Revision No : 2
k
OUTPUT VOLTAGE vs
TEMPERATURE
1.01
1.005
1.00
0.995
0.990
V =-12V, -15V
OUT
1.01
1.005
1.00
0.995
OUTPUT VOLTAGE (NORMALIZED)
0.990
-50
-25
0255075100
V =-5V
OUT
JUNCTION TEMPERATURE ( C)
OUTPUT IMPEDANCE
1
10
I =100mA
OUT
V - V =5V
OUT
IN
T =25 C
j
0
10
-1
10
OUTPUT IMPEDANCE (Ω)
-2
10
0.01K 100K1K 10K
C =1.0µF
OUT
SOLID TANTALUM
0.1K
FREQUENCY (Hz)
125 150
C =5µF
OUT
ACUMINUM
C =10µF
OUT
SOLID TANTALUM
1M
RIPPLE REJECTION
100
V =-12V
OUT
-15V
80
60
V =-5V
OUT
40
RIPPLE REJECTION (dB)
20
0.1k0.01k
FREQUENCY (Hz)
MINIMUM INPUT-OUTPUT
DIFFERENTIAL
2.4
2.2
2.0
1.8
1.6
1.4
T =0 C
1.2
j
1.0
0.8
0.6
INPUT-OUTPUT VOLTAGE (V)
0.4
0 0.3 0.4 0.5
0.1
0.2
OUTPUT CURRENT (A)
V -V =5V
IN OUT
T =25 C
j
C =1µF
OUT
SOLID TANTALUM
1k 10k 100
T =25 C
j
T =125 C
j
INPUT VOLTAGE
QUIESCENT CURRENT vs
LOAD CURRENT
1.3
1.25
1.2
1.15
1.1
T =25 C
j
1.05
1.0
0.95
QUIESCENT CURRENT (mA)
T =125 C
j
0.9
5 1015202530
35 40
INPUT VOLTAGE (V)
1.4
1.3
1.2
1.1
1.0
0.9
0.8
QUIESCENT CURRENT (mA)
0
0.10 0.2 0.3 0.4 0.5
OUTPUT CURRENT (A)
T =0 C
j
T =125 C
j
T =25 C
j
2002. 9. 24 8/9
KIA79M05F~KIA79M15F
Revision No : 2
SHORT-CIRCUIT CURRENT
1.50
1.25
1.0
0.75
T =25 C
0.50
0.25
SHORT-CIRCUIT CURRENT (A)
0
5 10152025303540
0
j
V - V (V)
T =0 C
j
T =125 C
j
P - Ta
D
15
D
Tc=25 C
12
THERMAL RESISTANCE
J-C
J-A
96.1
C/W
10.4
9
6
3
WITHOUT HEAT SINK
0
ALLOWABLE POWER DISSIPATION P (W)
OUTIN
0
40 80 120 160 200
AMBIENT TEMPERATURE Ta ( C)
2002. 9. 24 9/9
KIA79M05F~KIA79M15F
Revision No : 2
Design Considerations
The KIA79MXX fixed voltage regulator series have thermal
overload protection from excessive power, internal short circuit
protection which limits the circuit's maximum current, and output
transistor safe-area compensation for reducing the output current
as the voltage across the pass transistor is increased.
Although the internal power dissipation is limited, the junction
temperature must be kept below the maximum specified temperature
in order to meet data sheet specifications. To calculate the maximum
junction temperature or heat sink required, the following thermal
resistance values should be used ;
T
jmax
- Ta
P
DMAX
= or
JC+CA
T
jmax
- Ta
= (Without a Heat Sink)
JA
CA=CS+SA
Solving for TJ:
T
J
= TA+PD (JC+CA) or
= T
A
=+P
D JA
(Without a Heat Sink)
Where
T
J
= Junction Temperature
T
A
= Ambient Temperature
P
D
= Power Dissipation
JC
= Junction to Case Thermal Resistance
CA
= Case to Ambient Thermal Resistance
CS
= Case to Heak Sink Thermal Resistance
SA
= Heat Sink to Ambient Thermal Resistance
JA
= Junction to Ambient Thermal Resistance
Typical Applications
Bypass capacitors are necessary for stable operation of the
KIA79MXX series of regulators over the input voltage and output
current ranges. Output bypass capacitors will improve the transient
response of the regulator.
The bypass capacitors (2.2
F on the input, 1.0 F on the output),
Should be ceramic or solid tantalum which have good high frequency
characteristics. If aluminum electrolytics are used, their values
should be 10
F or larger. The bypass capacitors should be mounted
with the shortest leads, and if possible, directly across the regulator
terminals.
(1) Required if regulator is separated from filter capacitor by
more than 3. For value given, capacitor must be solid tantalum.
25
F aluminum electrolytic may be substituted.
(2) Required for stability. For value given, capacitor must be solid
tantalum. 25
F aluminum electrolytic may be substituted.
Values given may be increased without limit.
For output capacitance in excess of 100
F, a high current
diode from input to output (1N4001, etc.) will protect the
regulator from momentary input shorts.
* Improves transient response and ripple rejection.
Do not increase beyond 50
F.
R1+R2
V
OUT=VSET
( )
R2
Select R2 as follows :
KIA79M05 300
KIA79M08 470
KIA79M12 750
KIA79M15 1k
PACKAGE
JC
( /W)
JA
( /W)
DPAK 10.4 96.1
t
Input
C
1
2.2µF
SOLID
TANTALUM
INPUT
+
-
Fixed Regulator
+
(1)
C
1
2.2µF
-
KIA79MXX
Varlable Output
+
C
3
25µF
KIA79MXX
*
C
3
25µF
-
+
(2)
C
2
1µF
-
Outpu
R
1
R
+
C
2
1µF
SOLID
-
TANTALUM
2
OUTPUT
Loading...