KA79M12RTF [ONSEMI]
3-Terminal 0.5 A Negative Voltage Regulator, 2000-REEL;
| 型号： | KA79M12RTF |
| 厂家： | 
ONSEMI |
| 描述： | 3-Terminal 0.5 A Negative Voltage Regulator, 2000-REEL 输出元件 调节器 |
| 文件： | 总11页 (文件大小：398K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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September 2014
KA79MXX / LM79MXX
3-Terminal 0.5 A Negative Voltage Regulator
Description
Features
The KA79MXX / LM79MXX series of three terminal
medium current negative voltage regulators are mono-
lithic integrated circuits designed as fixed-voltage regula-
tors. These regulators employ internal current limiting,
thermal shutdown, and safe area compensation.
• No External Components Required
• Output Current in Excess of 0.5 A
• Internal Thermal Overload
• Internal Short-Circuit Current Limiting
• Output Transistor Safe Area Compensation
• Output Voltages: -5 V, -12 V
TO-220
Input
1
D-PAK Input
1
1. GND 2. Input 3. Output
Ordering Information(1)
Product Number
KA79M05TU
Package
Packing Method
Operating Temperature
TO-220 (Dual Gauge)
Rail
KA79M05RTM
KA79M05RTF
KA79M12RTM
KA79M12RTF
LM79M05CT
D-PAK
Tape and Reel
Rail
0 to +125°C
TO-220 (Single Gauge)
Note:
1. Refer to below figure for TM / TF suffix of DPAK packing option.
© 2001 Fairchild Semiconductor Corporation
KA79MXX / LM79MXX Rev. 1.1.1
www.fairchildsemi.com
Block Diagram
GND
R10
R11
R12
R9
Q15
R6
R2
R3
Q13
Q8
R15
R14
Q12
R8
D1
D2
D3
R1
Q3
Q14
Q10
Q11
Q16
Q9
R13
Q17
R5
R4
R7
D5
Q18
Q25
Q2
R16
Q24
OUT
Q5
Q1
R17
D4
Q4
Q7
Q6
Q23
C1
C2
Q26
Q19
Q27
R23
R20
R22
R24
R19
R25
Q21
Q20
Q22
R18
R21
IN
Figure 1. Block Diagram
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only.
Symbol
VI
Parameter
Value
-35
Unit
V
Input Voltage
VO = -5 V to -12 V
TO-220
RθJC
RθJA
TOPR
TSTG
Thermal Resistance, Junction-Case
Thermal Resistance, Junction-Air
Operating Temperature Range
Storage Temperature Range
5
°C/W
°C/W
°C
TO-220
65
0 to +125
-65 to +150
°C
© 2001 Fairchild Semiconductor Corporation
KA79MXX / LM79MXX Rev. 1.1.1
www.fairchildsemi.com
2
Electrical Characteristics (KA79M05 / KA79M05R / LM79M05)
Refer to test circuit, 0°C ≤ TJ ≤ +125°C, lO = 350 mA, VI = -10 V, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified.
Symbol
Parameter
Output Voltage
Conditions
Min.
Typ. Max.
Unit
TJ = +25°C
-4.80
-5.00
-5.00
7
-5.20
-5.25
50
VO
V
I
O = 5 mA to 350 mA, VI = -7 V to -25 V -4.75
VI = -7 V to -25 V
ΔVO
Line Regulation(2)
TJ =+25°C
mV
VI = -8 V to -25 V
2
30
ΔVO
Load Regulation(2)
Quiescent Current
IO = 5 mA to 500 mA, TJ = +25°C
TJ= +25°C
30
100
6.0
mV
mA
IQ
3.0
IO = 5 mA to 350 mA
0.4
ΔIQ
Quiescent Current Change
mA
I
O = 200 mA, VI = -8 V to -25 V
0.4
ΔVo/ΔT
VN
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
IO = 5 mA
-0.2
40
mV/°C
μV
f = 10 Hz to 100 kHz, TA = +25°C
f = 120 Hz, VJ = -8 V to -18 V
TJ = +25°C, IO = 500 mA
TJ = +25°C, VI = -35 V
TJ = +25°C
RR
54
60
dB
VD
1.1
140
650
V
ISC
Short-Circuit Current
Peak Current
mA
mA
IPK
Note:
2. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
© 2001 Fairchild Semiconductor Corporation
KA79MXX / LM79MXX Rev. 1.1.1
www.fairchildsemi.com
3
Electrical Characteristics (KA79M12R)
Refer to test circuit, 0°C ≤ TJ ≤ +125°C, lO = 350 mA, VI = -19 V, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified.
Symbol
Parameter
Conditions
TJ = +25°C
Min.
Typ. Max.
Unit
-11.5
-12.0
-12.5
VO
Output Voltage
V
IO = 5 mA to 350 mA,
VI = -14.5 V to -30 V
-11.4
-12.0
-12.6
VI = -14.5 V to -30 V
VI = -15 V to -25 V
8.0
3.0
30
3
80
50
ΔVO
Line Regulation(3)
TJ =+25°C
mV
ΔVO
Load Regulation(3)
Quiescent Current
TJ = +25°C IO = 5.0 mA to 500 mA
TJ = +25°C
240
6
mV
mA
IQ
IO = 5 mA to 350 mA
VI = -14.5 V to -30 V
IO = 5 mA
0.4
0.4
ΔIQ
Quiescent Current Change
mA
ΔVO/ΔT
VN
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
-0.8
75
mV/°C
μV
f = 10 Hz to 100 kHz, TA = +25°C
f = 120 Hz, VI = -15 V to -25 V
IO = 500 mA, TJ = +25°C
VI = -35 V, TJ = +25°C
TJ = +25°C
RR
54
60
dB
VD
1.1
140
650
V
ISC
Short Circuit Current
Peak Current
mA
mA
IPK
Note:
3. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
© 2001 Fairchild Semiconductor Corporation
KA79MXX / LM79MXX Rev. 1.1.1
www.fairchildsemi.com
4
Typical Performance Characteristics
0.0
VIN = -10V
V
O = -5V
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
IOUT = 0mA
IOUT = 300mA
IOUT = 200mA
IOUT = 100mA
IOUT = 500mA
IOUT = 400mA
0
25
50
75
100
125
150
TA - Temperature [oC]
Figure 2. Dropout Voltage
© 2001 Fairchild Semiconductor Corporation
KA79MXX / LM79MXX Rev. 1.1.1
www.fairchildsemi.com
5
Typical Applications
2
3
KA79MXX
LM79MXX
VI
VO
1
1.0 μF
2.0 μF
Figure 3. Fixed Output Regulator
KA79MXX
LM79MXX
VI
VO
R1
_
C3
SOLID
TANTALUM
C1
_
+
1 μF
2.2 μF
+
_
SOLID
C2
25 μF
R2
TANTALUM
+
Figure 4. Variable Output
Notes:
4. To specify an output voltage, substitute voltage value for "XX".
5. CI is required if the regulator is located an appreciable distance from the power supply filter. For value given,
capacitor must be solid tantalum. If aluminium electronics are used, 25 μF aluminum electrolytic may be substituted.
6. C2 improves transient response and ripple rejection. Do not increase beyond 50 μF.
© 2001 Fairchild Semiconductor Corporation
KA79MXX / LM79MXX Rev. 1.1.1
www.fairchildsemi.com
6
Physical Dimensions
Figure 5. TO-220, MOLDED, 3LEAD, JEDEC VARIATION AB
© 2001 Fairchild Semiconductor Corporation
KA79MXX / LM79MXX Rev. 1.1.1
www.fairchildsemi.com
7
Physical Dimensions (Continued)
)
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© 2001 Fairchild Semiconductor Corporation
KA79MXX / LM79MXX Rev. 1.1.1
www.fairchildsemi.com
8
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Rev. I71
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regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
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相关型号：
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