ELECTRICALCHARACTERISTICS FOR L7818
(refer to the test circuits, T
j
= -55 to 150oC,
V
i
= 26V, Io=500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage Tj=25oC 17.3 18 1 8.7 V
V
o
OutputVoltage Io=5 mA to 1 A Po≤ 15W
V
i
=22to33V
17.1 18 18.9 V
∆
V
o
* LineRegulation Vi=21to33V Tj=25oC
V
i
=24to30V Tj=25oC
180
90
mV
mV
∆V
o
* LoadRegulation Io=5 to 1500 mA Tj=25oC
I
o
=250 to 750mA Tj=25oC
180
90
mV
mV
I
d
Quiescent Current Tj=25oC6mA
∆
I
d
Quiescent CurrentChange Io=5 to 1000 mA 0.5 mA
∆
I
d
Quiescent CurrentChange Vi=22to33V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 2.3 mV/oC
eN OutputNoiseVoltage B = 10Hzto 100KHz T
j
=25oC40µV/V
O
SVR Supply VoltageRejection Vi= 22 to 32 V f= 120 Hz 59 dB
V
d
Dropout Voltage Io=1A Tj=25oC22.5V
R
o
OutputResistance f = 1KHz 22 m
Ω
I
sc
ShortCircuitCurrent Vi=35V Tj=25oC0.751.2A
I
scp
ShortCircuitPeak Current Tj=25oC 1.3 2.2 3.3 A
ELECTRICALCHARACTERISTICS FOR L7815 (refer to the test circuits, Tj= -55 to 150oC,
V
i
= 23V, Io=500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage Tj=25oC 14.4 15 1 5.6 V
V
o
OutputVoltage Io=5 mA to 1 A P
o
≤
15W
V
i
= 18.5to 30 V
14.25 15 15.75 V
∆
V
o
* LineRegulation Vi= 17.5to 30 V Tj=25oC
V
i
=20to26V Tj=25oC
150
75
mV
mV
∆
V
o
* LoadRegulation Io=5 to 1500 mA Tj=25oC
I
o
=250 to 750mA Tj=25oC
150
75
mV
mV
I
d
Quiescent Current Tj=25oC6mA
∆I
d
Quiescent CurrentChange Io=5 to 1000 mA 0.5 mA
∆
I
d
Quiescent CurrentChange Vi= 18.5to 30 V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 1.8 mV/oC
eN OutputNoiseVoltage B = 10Hzto 100KHz T
j
=25oC40
µ
V/V
O
SVR Supply VoltageRejection Vi= 18.5to 28.5 V f =120 Hz 60 dB
V
d
Dropout Voltage Io=1A Tj=25oC22.5V
R
o
OutputResistance f = 1KHz 19 mΩ
I
sc
ShortCircuitCurrent Vi=35V Tj=25oC0.751.2A
I
scp
ShortCircuitPeak Current Tj=25oC 1.3 2.2 3.3 A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testing with low duty cycle is used.
L7800
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