MC79L08.pdf 데이터시트 (총 12 페이지) - 파일 다운로드 MC79L08 데이타시트 다운로드

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www.fairchildsemi.com
MC79LXXA/LM79LXXA
3-Terminal 0.1A Negative Voltage Regulator
Features
• Output Current up to 100mA
• No External Components
• Internal Thermal Over Load Protection
• Internal Short Circuit Current Limiting
• Output Voltage Offered in ±5% Tolerance
• Output Voltage of -5V, -8V, -12V, -15V, -18V, -24V
Internal Block Diagram
Description
These regulators employ internal current limiting and
thermal shutdown, making them essentially indestructible.
TO-92
SOT-89
1
1
1.GND 2.Input 3.Output
8-SOP
1
1. Output 2.3.6.7. Input 5. GND 4.8. NC
Q10
Q11
R26
Q12
GND
R15
D3 D2
R22
R23+R21
Q5
R18
Q15
Q6
Q17
Q16 Q14 Q13
Q9
R28 R24
R25 R29 R7
C1
R16 R17
Q7 R
Q4
R1
Q8 Q1 R2
D1
Q2 Q3
R6
R3
Output
R27 R4 R5
Input
©2002 Fairchild Semiconductor Corporation
Rev. 1.0.2

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MC79LXXA/LM79LXXA
Absolute Maximum Ratings
Parameter
Input Voltage (for Vo = -5V to -8V)
(for VO = -12V to -18V)
(for VO = -24V)
Operating Temperature Range
Storage Temperature Range
Symbol
VI
TOPR
TSTG
Value
-30
-35
-40
0 ~ +125
-65 ~ +150
Unit
V
°C
°C
Electrical Characteristics(MC79L05A/LM79L05A)
(VI = -10V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, 0°C TJ +125°C, unless otherwise specified)
Parameter
Output Voltage
Line Regulation (Note1)
Symbol
VO
VO
Conditions
TJ = +25°C
TJ =+25°C
-7.0V VI -20V
-8V VI -20V
Min. Typ. Max. Unit
-4.8 -5.0 -5.2 V
- 15 150 mV
- - 100 mV
Load Regulation (Note1)
VO
Output Voltage
VO
Quiescent Current
Quiescent Current With Line
Change
With Load
Output Noise Voltage
Ripple Rejection
Dropout Voltage
IQ
IQ
IQ
VN
RR
VD
TJ =+25°C
1.0mA IO 100mA
1.0mA IO 40mA
-
-
20 60 mV
10 30 mV
-7.0V VI -20V, 1.0mA IO 40mA -4.75 - -5.25 V
VI = -10V, 1.0mA IO 70mA
-4.75 - -5.25 V
TJ =+25°C
TJ = +125°C
- 2.0 5.5
mA
- - 6.0
-8V VI -20V
- - 1.5 mA
1.0mA IO 40mA
- - 0.1 mA
TA = +25°C,10Hz f 100kHz
- 30 - µV
f = 120Hz, -8V VI -18V
TJ = +25°C
41 60 - dB
TJ = +25°C
- 1.7 -
V
Note:
1. 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.
2

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MC79LXXA/LM79LXXA
Electrical Characteristics (MC79L08A) (Continued)
(VI = -14V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, 0°C TJ +125°C, unless otherwise specified)
Parameter
Output Voltage
Line Regulation(Note1)
Symbol
VO
VO
Load Regulation (Note1)
VO
Output Voltage
VO
Quiescent Current
Quiescent Current With Line
Change
With Load
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Iq
IQ
VN
RR
VD
TJ = +25°C
TJ = +25°C
Conditions
-10.3V VI -23V
-12V VI -23V
TJ = +25°C
1.0mA Io 100mA
1.0mA Io 40mA
-10.3V VI -23V, 1.0mA Io 40mA
VI = -14V, 1.0mA Io 70mA
Tj = +25°C
Tj = +125°C
-11.7V VI -23V
1.0mA Io 40mA
Tj = +25°C,10Hz f 100kHz
f = 120Hz, -11V VI -21V
Tj = +25°C
Tj = +25°C
Min.
-7.7
-
Typ.
-8.0
-
Max. Unit
-8.3 V
175 mV
- - 125 mV
- - 80 mV
- - 40 mV
-7.6 - -8.4
V
-7.6 - -8.4
- - 6.0
mA
- - 5.5
- - 1.5 mA
- - 0.1 mA
- 50 - µV
39 55 - dB
- 1.7 - V
Note:
1. 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.
3