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KA7912ATU 数据表(PDF) 4 Page - Fairchild Semiconductor

部件名 KA7912ATU
功能描述  3-Terminal 1 A Negative Voltage Regulator
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

KA7912ATU 数据表(HTML) 4 Page - Fairchild Semiconductor

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© 2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
KA79XX / KA79XXA / LM79XX Rev. 1.1.0
4
Electrical Characteristics (KA7906)
(VI = -11 V, IO = 500 mA, 0°C ≤ TJ ≤ +125°C, CI = 2.2 μF, CO = 1 μF; unless otherwise specified.)
Note:
4. 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
-5.75
-6.00
-6.25
V
IO = 5 mA to 1 A, PO ≤ 15 W,
VI = -9 V to -21 V
-5.70
-6.00
-6.30
ΔVO
Line Regulation(4)
TJ = +25°C
VI = -8 V to -25 V
10
120
mV
VI = -9 V to -13 V
5
60
ΔVO
Load Regulation(4)
TJ = +25°C, IO = 5 mA to 1.5 A
10
120
mV
TJ = +25°C, IO = 250 mA to 750 mA
3
60
IQ
Quiescent Current
TJ = +25°C3
6
mA
ΔIQ
Quiescent Current
Change
IO = 5 mA to 1 A
0.05
0.50
mA
VI = -8 V to -25 V
0.10
1.30
ΔVo/ΔT
Temperature Coefficient
of VD
IO = 5 mA
-0.5
mV/
°C
VN
Output Noise Voltage
f = 10 Hz to 100 kHz, TA =+25°C130
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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