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LM7908CT データシート(PDF) 8 Page - Fairchild Semiconductor

部品番号 LM7908CT
部品情報  3-Terminal 1 A Negative Voltage Regulator
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メーカー  FAIRCHILD [Fairchild Semiconductor]
ホームページ  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

LM7908CT データシート(HTML) 8 Page - Fairchild Semiconductor

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© 2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
KA79XX / KA79XXA / LM79XX Rev. 1.1.0
8
Electrical Characteristics (KA7912 / LM7912)
(VI = -19 V, IO = 500 mA, 0°C ≤ TJ ≤ +125°C, CI = 2.2 μF, CO = 1 μF; unless otherwise specified.)
Note:
8. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
TJ = +25°C
-11.5
-12.0
-12.5
V
IO = 5 mA to 1 A, PO ≤ 15 W
VI = -15.5 V to -27 V
-11.4
-12.0
-12.6
ΔVO
Line Regulation(8)
TJ = +25°C
VI = -14.5 V to -30 V
12
240
mV
VI = -16 V to -22 V
6
120
ΔVO
Load Regulation(8)
TJ = +25°C, IO = 5 mA to 1.5 A
12
240
mV
TJ =+25°C, IO = 250 mA to 750 mA
4
120
IQ
Quiescent Current
TJ =+25°C3
6
mA
ΔIQ
Quiescent Current
Change
IO = 5 mA to 1 A
0.05
0.50
mA
VI = -14.5 V to -30 V
0.10
1.00
ΔVo/ΔT
Temperature Coefficient
of VD
IO = 5 mA
-0.8
mV/
°C
VN
Output Noise Voltage
f = 10 Hz to 100 kHz, TA =+25°C200
μV
RR
Ripple Rejection
f = 120 Hz,
ΔVI = 10 V
54
60
dB
VD
Dropout Voltage
TJ = +25°C, IO = 1 A
2
V
ISC
Short-Circuit Current
TJ = +25°C, VI = -35 V
300
mA
IPK
Peak Current
TJ = +25°C2.2
A


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