LM7818CT(2013) Просмотр технического описания (PDF) - Fairchild Semiconductor
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LM7818CT Datasheet PDF : 24 Pages
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Electrical Characteristics (LM7812)
Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 19 V, CI = 0.33 μF,CO = 0.1 μF, unless otherwise
specified.
Symbol
VO
Regline
Regload
IQ
ΔIQ
ΔVO/ΔT
VN
RR
VDROP
RO
ISC
IPK
Parameter
Output Voltage
Line Regulation(12)
Load Regulation(12)
Quiescent Current
Quiescent Current
Change
Output Voltage Drift(13)
Output Noise Voltage
Ripple Rejection(13)
Dropout Voltage
Output Resistance(13)
Short-Circuit Current
Peak Current(13)
Conditions
TJ = +25°C
IO = 5 mA to 1 A, PO ≤ 15 W,
VI = 14.5 V to 27 V
TJ = +25°C
VI = 14.5 V to 30 V
VI = 16 V to 22 V
TJ = +25°C
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
TJ =+25°C
IO = 5 mA to 1 A
VI = 14.5 V to 30 V
IO = 5 mA
f = 10 Hz to 100 kHz, TA = +25°C
f = 120 Hz, VI = 15 V to 25 V
IO = 1 A, TJ = +25°C
f = 1 kHz
VI = 35 V, TJ = +25°C
TJ = +25°C
Min.
11.5
11.4
55.0
Typ.
12.0
12.0
10
3
11
5
5.1
0.1
0.5
-1.0
76.0
71.0
2.0
18.0
230
2.2
Max.
12.5
12.6
Unit
V
240
mV
120
240
mV
120
8.0 mA
0.5
mA
1.0
mV/°C
μV/VO
dB
V
mΩ
mA
A
Notes:
12. 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.
13. These parameters, although guaranteed, are not 100% tested in production.
© 2006 Fairchild Semiconductor Corporation
LM78XX / LM78XXA Rev. 1.3.0
8
www.fairchildsemi.com
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