KA79XXA [FAIRCHILD]
3-Terminal 1A Negative Voltage Regulator; 3端子1A负稳压器
| 型号： | KA79XXA |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | 3-Terminal 1A Negative Voltage Regulator |
| 文件： | 总18页 (文件大小：123K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
KA79XX/KA79XXA
3-Terminal 1A Negative Voltage Regulator
Features
Description
• Output Current in Excess of 1A
The KA79XX/KA79XXA series of three-terminal negative
regulators are available in TO-220 package and with
several fixed output voltages, making them useful in a wide
range of applications. Each type employs internal current
limiting, thermal shutdown and safe operating area
protection, making it essentially indestructible.
• Output Voltages of -5, -6, -8, -9, -10, -12, -15, -18 , -24V
• Internal Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Compensation
TO-220
Vin
1
1. GND 2. Input 3. Output
Internal Block Digram
GND
R1
VOLTAGE
REFERENCE
R2
Output
+
-
Q1
Q2
PROTECTION
CIRCUITRY
I1
I2
Rsc
Input
Rev. 1.0.1
©2002 Fairchild Semiconductor Corporation
KA79XX/KA79XXA
Absolute Maximum Ratings
Parameter
Symbol
Value
-35
Unit
V
Input Voltage
V
I
Thermal Resistance Junction-Case (Note1)
Thermal Resistance Junction-Air (Note1, 2)
Operating Temperature Range
Storage Temperature Range
Note:
R
R
5
°C/W
°C/W
°C
θJC
θJA
65
T
OPR
0 ~ +125
- 65 ~ +150
T
STG
°C
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 (KA7905)
(V = -10V, I = 500mA, 0°C ≤ T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
T = +25°C
J
-4.8 -5.0 -5.2
Output Voltage
V
V
O
I
= 5mA to 1A, P 15W
O ≤
O
I
-4.75 -5.0 -5.25
V = -7V to -20V
V = -7V to -25V
-
-
35
8
100
50
I
Line Regulation (Note3)
∆V
∆V
T = +25°C
mV
O
J
V = -8V to -12V
I
T = +25°C, I = 5mA to 1.5A
-
10
3
100
50
J
O
Load Regulation (Note3)
Quiescent Current
mV
mA
mA
O
T =+25°C, I = 250mA to 750mA
-
J
O
I
T =+25°C
J
-
3
6
Q
I
= 5mA to 1A
-
0.05 0.5
O
Quiescent Current Change
∆I
Q
V = -8V to -25V
I
-
0.1
-0.4
40
0.8
Temperature Coefficient of V ∆Vo/∆T
I
= 5mA
O
-
-
-
-
-
-
-
mV/°C
µV
dB
D
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
V
f = 10Hz to 100kHz, T = +25°C
-
N
A
RR
f = 120Hz, ∆V = 10V
54
-
60
I
V
T =+25°C, I = 1A
J
2
V
D
O
I
T =+25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T =+25°C
J
-
PK
Note
3. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
2
KA79XX/KA79XXA
Electrical Characteristics (KA7906) (Continued)
(V = -11V, I = 500mA, 0°C ≤ T ≤ +125°C, C =2.2µF, C = 1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
T =+25°C
J
-5.75
-6
-6.25
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-5.7
-6
-6.3
V = -9V to -21V
V = -8V to -25V
-
-
10
5
120
60
120
60
6
I
Line Regulation (Note1)
∆V
∆V
T = +25°C
mV
O
O
J
V = -9V to -13V
I
T = +25°C, I = 5mA to 1.5A
-
10
3
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
T = +25°C, I = 250mA to 750mA
-
J
O
I
T = +25°C
J
-
3
Q
I
= 5mA to 1A
-
0.05
0.1
-0.5
130
60
2
0.5
1.3
-
O
Quiescent Current Change
∆I
Q
V = -8V to -25V
I
-
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
D
V
f = 10Hz to 100kHz, T =+25°C
-
-
N
A
RR
f = 120Hz, ∆V = 10V
54
-
-
dB
I
Dropout Voltage
V
T = +25°C, I = 1A
-
V
D
J
O
Short Circuit Current
Peak Current
I
T = +25°C, V = -35V
-
300
2.2
-
mA
A
SC
J
I
I
T = +25°C
J
-
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
3
KA79XX/KA79XXA
Electrical Characteristics (KA7908) (Continued)
(V = -14V, I = 500mA, 0°C ≤ T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
T =+25°C
J
-7.7
-8
-8.3
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-7.6
-8
-8.4
V = -10V to -23V
V = -10.5V to -25V
-
-
10
5
160
I
Line Regulation (Note1)
∆V
∆V
T = +25°C
mV
O
O
J
V = -11V to -17V
I
80
T = +25°C, I = 5mA to 1.5A
-
12
4
160
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
T = +25°C, I = 250mA to 750mA
-
80
J
O
I
T = +25°C
J
-
3
6
Q
I
= 5mA to 1A
-
0.05
0.1
-0.6
175
60
2
0.5
O
Quiescent Current Change
∆I
Q
V = -10.5V to -25V
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
dB
D
V
f = 10Hz to 100kHz, T = +25°C
-
N
A
RR
f = 120Hz, ∆V = 10V
54
-
I
Dropout Voltage
V
T =+25°C, I = 1A
V
D
J
O
Short Circuit Current
Peak Current
I
T =+25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T = +25°C
J
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
4
KA79XX/KA79XXA
Electrical Characteristics (KA7909) (Continued)
(V = -15V, I = 500mA, 0°C ≤ T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
T = +25°C
J
-8.7
-9.0
-9.3
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-8.6
-9.0
-9.4
V = -1.5V to -23V
V = -11.5V to -26V
-
-
10
5
180
I
Line Regulation (Note1)
∆V
∆V
T =+25°C
mV
O
J
V = -12V to -18V
I
90
T =+25°C, I = 5mA to 1.5A
-
12
4
180
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
O
T =+25°C, I = 250mA to 750mA
-
90
J
O
I
T = +25°C
J
-
3
6
Q
I
= 5mA to 1A
-
0.05
0.1
-0.6
175
60
2
0.5
O
Quiescent Current Change
∆I
Q
V = -11.5V to -26V
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
D
V
f = 10Hz to 100kHz, T = +25°C
-
N
A
RR
f = 120Hz, ∆V = 10V
54
-
dB
I
Dropout Voltage
V
T = +25°C, I = 1A
V
D
J
O
Short Circuit Current
Peak Current
I
T = +25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T = +25°C
J
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
5
KA79XX/KA79XXA
Electrical Characteristics (KA7910) (Continued)
(V = -17V, I = 500mA, 0°C ≤T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
T = +25°C
J
-9.6
-10 -10.4
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-9.5
-10 -10.5
V = -12V to -28
V = -12.5V to -28V
-
-
12
6
200
I
Line Regulation (Note1)
∆V
∆V
T = +25°C
mV
O
O
J
V = -14V to -20V
I
100
T = +25°C, I = 5mA to 1.5A
-
12
4
200
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
T = +25°C, I = 250mA to 750mA
-
100
J
O
I
T = +25°C
J
-
3
6
Q
I
= 5mA to 1A
-
0.05
0.1
-1
0.5
O
Quiescent Current Change
∆I
Q
V = -12.5 to -28V
I
-
1
-
-
-
-
-
-
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
O
V
10Hz ≤ f ≤ 100kHz, T = +25°C
-
280
60
2
N
A
RR
f = 120Hz, ∆V = 10V
54
-
dB
I
Dropout Voltage
V
T = +25°C, I = 1A
V
D
J
O
Short Circuit Current
Peak Current
I
T = +25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T = +25°C
J
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
6
KA79XX/KA79XXA
Electrical Characteristics (KA7912) (Continued)
(V = -19V, I = 500mA, 0°C ≤T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max.
Unit
T = +25°C
J
-11.5 -12 -12.5
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-11.4 -12 -12.6
V = -15.5V to -27V
V = -14.5V to -30V
-
-
12
6
240
I
Line Regulation (Note1)
∆V
∆V
T = +25°C
mV
O
J
V = -16V to -22V
I
120
T = +25°C, I = 5mA to 1.5A
-
12
4
240
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
O
T =+25°C, I = 250mA to 750mA
-
120
J
O
I
T =+25°C
J
-
3
6
Q
I
= 5mA to 1A
-
0.05
0.1
-0.8
200
60
2
0.5
O
Quiescent Current Change
∆I
Q
V = -14.5V to -30V
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
dB
D
V
f = 10Hz to 100kHz, T =+25°C
-
N
A
RR
f = 120Hz, ∆V = 10V
54
-
I
Dropout Voltage
V
T = +25°C, I = 1A
V
D
J
O
Short Circuit Current
Peak Current
I
T = +25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T = +25°C
J
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
7
KA79XX/KA79XXA
Electrical Characteristics (KA7915) (Continued)
(V = -23V, I = 500mA, 0°C ≤T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
-14.4 -15 -15.6
T = +25°C
J
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-14.25 -15 -15.75
V = -18V to -30V
V = -17.5V to -30V
-
-
12
6
300
I
Line Regulation (Note1)
∆V
∆V
T = +25°C
mV
O
O
J
V = -20V to -26V
I
150
T = +25°C, I = 5mA to 1.5A
-
12
4
300
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
T =+25°C, I = 250mA to 750mA
-
150
J
O
I
T =+25°C
J
-
3
6
Q
I
= 5mA to 1A
-
0.05
0.1
-0.9
250
60
2
0.5
O
Quiescent Current Change
∆I
Q
V = -17.5V to -30V
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
D
V
f = 10Hz to 100kHz, T = +25°C
-
N
A
RR
f = 120Hz, ∆V = 10V
54
-
dB
I
Dropout Voltage
V
T = +25°C, I = 1A
V
D
J
O
Short Circuit Current
Peak Current
I
T = +25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T = +25°C
J
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
8
KA79XX/KA79XXA
Electrical Characteristics (KA7918) (Continued)
(V = -27V, I = 500mA, 0°C ≤ T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
T = +25°C
J
-17.3
-18
-18.7
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-17.1
-18
-18.9
V = -22.5V to -33V
V = -21V to -33V
-
-
15
8
360
I
Line Regulation (Note1)
∆V
∆V
T = +25°C
mV
O
O
J
V = -24V to -30V
I
180
T = +25°C, I = 5mA to 1.5A
-
15
5
360
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
T = +25°C, I = 250mA to 750mA
-
180
J
O
I
T = +25°C
J
-
3
6
Q
I
= 5mA to 1A
-
0.05
0.1
-1
0.5
O
Quiescent Current Change
∆I
Q
V = -21V to -33V
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
D
V
f = 10Hz to 100kHz, T = +25°C
-
300
60
2
N
A
RR
f = 120Hz, ∆V = 10V
54
-
dB
I
Dropout Voltage
V
T = +25°C, I = 1A
V
D
J
O
Short Circuit Current
Peak Current
I
T = +25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T =+25°C
J
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
9
KA79XX/KA79XXA
Electrical Characteristics (KA7924) (Continued)
(V = -33V, I = 500mA, 0°C ≤T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
-23 -24 -25
T = +25°C
J
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-22.8 -24 -25.2
V = -27V to -38V
V = -27V to -38V
-
-
15
8
480
180
480
240
6
I
Line Regulation (Note1)
∆V
∆V
T =+25°C
mV
O
J
V = -30V to -36V
I
T = +25°C, I = 5mA to 1.5A
-
15
5
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
O
T = +25°C, I = 250mA to 750mA
-
J
O
I
T = +25°C
J
-
3
Q
I
= 5mA to 1A
-
0.05 0.5
O
Quiescent Current Change
∆I
Q
V = -27V to -38V
I
-
0.1
-1
1
-
-
-
-
-
-
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
D
V
f = 10Hz to 100kHz, T =+25°C
-
400
60
N
A
RR
f = 120Hz, ∆V = 10V
54
-
dB
I
Dropout Voltage
V
T =+25°C, I = 1A
2
V
D
J
O
Short Circuit Current
Peak Current
I
T =+25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T =+25°C
J
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
10
KA79XX/KA79XXA
Electrical Characteristics (KA7905A) (Continued)
(V = -10V, I = 500mA, 0°C ≤T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
T = +25°C
J
-4.9
-5.0
-5.1
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-4.8
-5.0
-5.2
V = -7V to -20V
V = -7V to -20V
I
-
-
5
2
50
25
I
= 1A
O
T = +25°C
J
V = -8V to -12V
I
Line Regulation (Note1)
Load Regulation (Note1)
∆V
∆V
mV
mV
O
O
I
= 1A
O
V = -7.5V to -25V
-
-
7
7
50
50
I
V = -8V to -12V, I =1A
I
O
I
= 5mA to 1.5A
O
-
10
100
T = +25°C
J
T =+25°C, I = 250mA to 750mA
-
-
3
3
50
J
O
Quiescent Current
I
T =+25°C
J
6
mA
mA
Q
I
= 5mA to 1A
-
0.05
0.1
-0.4
40
0.5
O
Quiescent Current Change
∆I
Q
V = -8V to -25V
-
0.8
I
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
-
-
-
-
-
-
mV/°C
µV
dB
D
V
f = 10Hz to 100kHz, T =+25°C
-
N
A
RR
f = 120Hz, ∆V = 10V
54
-
60
I
Dropout Voltage
V
T = +25°C, I = 1A
2
V
D
J
O
Short Circuit Current
Peak Current
I
T = +25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T = +25°C
-
PK
J
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
11
KA79XX/KA79XXA
Electrical Characteristics (KA7912A) (Continued)
(V = -19V, I = 500mA, 0°C ≤T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
T =+25°C
-11.75 -12 -12.25
V
J
Output Voltage
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
-11.5
-12
12
6
-12.5
120
60
V = -15.5V to -27V
I
V = -14.5V to -27V
Io = 1A
I
-
-
T = +25°C
J
V = -16V to -22V
I
Io = 1A
Line Regulation (Note1)
∆V
∆V
mV
O
O
V = -14.8V to -30V
-
-
12
12
120
I
V = -16V to -22V, Io = 1A
I
120
T =+25°C, I = 5mA to 1.5A
-
12
150
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
T =+25°C, I = 250mA to 750mA
-
4
75
J
O
I
T =+25°C
J
-
3
6
Q
I
= 5mA to 1A
-
0.05
0.1
-0.8
200
60
0.5
O
Quiescent Current Change
∆I
Q
V = -15V to -30V
I
-
1
-
-
-
-
-
-
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
D
V
f = 10Hz to 100kHz, T =+25°C
-
N
A
RR
f = 120Hz, ∆V = 10V
54
-
dB
I
Dropout Voltage
V
T =+25°C, I = 1A
2
V
D
J
O
Short Circuit Current
Peak Current
I
T =+25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T =+25°C
J
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
12
KA79XX/KA79XXA
Electrical Characteristics (KA7915A) (Continued)
(V = -23V, I = 500mA, 0°C ≤T ≤ +125°C, C =2.2µF, C =1µF, unless otherwise specified.)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
T = +25°C
J
-14.7 -15 -15.3
Output Voltage
V
V
O
I
= 5mA to 1A, P ≤ 15W
O
O
I
-14.4 -15 -15.6
V = -18V to -30V
V = -17.5V to -30V
I
Io = 1A
-
-
12 150
75
T =+25°C
J
V = -20V to -26V
I
Io = 1A
6
Line Regulation (Note1)
∆V
∆V
mV
O
O
V = -17.9V to -30V
-
-
12 150
150
12 150
I
V = -20V to -26V, Io = 1A
I
6
T = +25°C, I = 5mA to 1.5A
-
J
O
Load Regulation (Note1)
Quiescent Current
mV
mA
mA
T = +25°C, I = 250mA to 750mA
-
4
3
75
6
J
O
I
T =+25°C
J
-
Q
I
= 5mA to 1A
-
0.05 0.5
O
Quiescent Current Change
∆I
Q
V = -18.5V to -30V
I
-
0.1
-0.9
250
60
1
-
-
-
-
-
-
Temperature Coefficient of V
Output Noise Voltage
Ripple Rejection
∆Vo/∆T
I
= 5mA
O
-
mV/°C
µV
dB
D
V
f = 10Hz to 100kHz, T =+25°C
-
N
A
RR
f = 120Hz, ∆V = 10V
54
-
I
Dropout Voltage
V
T = +25°C, I = 1A
2
V
D
J
O
Short Circuit Current
Peak Current
I
T =+25°C, V = -35V
-
300
2.2
mA
A
SC
J
I
I
T =+25°C
J
-
PK
Note
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
13
KA79XX/KA79XXA
Typical Performance Characteristics
5. 1
15
Vin=10V
13
11
9
Io=1.5A
Io=40mA
5. 05
5
7
4. 95
4. 9
5
3
Vin=25V
1
- 1
- 3
- 5
Io=100mA
Io=0.75A
4. 85
4. 8
- 40
- 25
0
25
50
75
100
125
5
- 40
- 25
0
25
50
75
100
125
TA, Ambient Temperature [ oC]
TA, Ambient Temperature [oC]
Figure 1. Output Voltage
Figure 2. Load Regulation
4
5
4. 5
4
3. 5
3
2. 5
2
3. 5
3
2. 5
2
1. 5
1
0. 5
0
1. 5
1
Io=1A
0. 5
0
- 40
- 25
0
25
50
75
100
125
- 40 - 25
0
25
50
75
100 125
TA, Ambient Temperature [oC]
TA, Ambient Temperature [oC]
Figure 3. Quiescent Current
Figure 4. Dropout Voltage
0. 6
0. 55
0. 5
0. 45
0. 4
0. 35
0. 3
0. 25
0. 2
0. 15
0. 1
0. 05
S
c
t
r
[
0
- 0. 05
- 0. 1
- 40
- 25
0
25
50
75
100
125
o
A
T , Ambient Temperature [ C]
Figure 5. Short Circuit Current
14
KA79XX/KA79XXA
Typical Applications
1uF
2.2uF
+
+
Co
C
I
1
2
3
KA79XX
Input
Output
Figure 6. Negative Fixed output regulator
1
3
+15V
+12V
KA7812
+
+
2
Co
1N4001
C1
0.33uF
*
*
1uF
GND
+
2.2uF
1uF
+
1N4001
C1
Co
1
2
3
-12V
-15V
KA7912
Figure 7. Split power supply ( ± 12V/1A)
Note:
(1) To specify an output voltage, substitute voltage value for "XX "
(2) Required for stability. For value given, capacitor must be solid tantalum. If aluminium electronics are used, at least ten times
value shown should be selected. C is required if regulator is located an appreciable distance from power supply filter.
I
(3) To improve transient response. If large capacitors are used, a high current diode from input to output (1N400l or similar)
should be introduced to protect the device from momentary input short circuit.
15
KA79XX/KA79XXA
Mechanical Dimensions
Package
Dimensions in millimeters
TO-220
4.50 ±0.20
9.90 ±0.20
(8.70)
+0.10
–0.05
1.30
ø3.60 ±0.10
(45
°
)
1.27 ±0.10
1.52 ±0.10
0.80 ±0.10
+0.10
–0.05
0.50
2.40 ±0.20
2.54TYP
2.54TYP
[2.54 ±0.20
]
[2.54 ±0.20]
10.00 ±0.20
16
KA79XX/KA79XXA
Ordering Information
Product Number
KA7905
Output Voltage Tolerance
Package
Operating Temperature
KA7906
KA7908
KA7909
KA7910
±4%
KA7912
TO-220
0 ~ +125°C
KA7915
KA7918
KA7924
KA7905A
KA7912A
KA7915A
±2%
17
KA79XX/KA79XXA
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
11/12/02 0.0m 001
Stock#DSxxxxxxxx
2002 Fairchild Semiconductor Corporation
相关型号：
©2020 ICPDF网 联系我们和版权申明