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L7805AB データシート(PDF) 23 Page - STMicroelectronics

部品番号 L7805AB
部品情報  Positive voltage regulators
PDF  56 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7805AB データシート(HTML) 23 Page - STMicroelectronics

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L78xx, L78xxC, L78xxAB, L78xxAC
Electrical characteristics
Doc ID 2143 Rev 22
23/56
Refer to the test circuits, TJ = 0 to 125 °C, VI = 19 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified.
Table 18.
Electrical characteristics of L7812C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
11.5
12
12.5
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 14.5 to 25 V
11.4
12
12.6
V
VO
Output voltage
IO = 1 A, VI = 25 to 27 V, TJ = 25°C
11.4
12
12.6
V
ΔV
O
(1)
Line regulation
VI = 14.5 to 30 V, TJ = 25°C
240
mV
VI = 16 to 22 V, TJ = 25°C
120
ΔV
O
(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25°C
240
mV
IO = 250 to 750 mA, TJ = 25°C
120
Id
Quiescent current
TJ = 25°C
8
mA
ΔI
d
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 14.5 to 30 V
1
ΔV
O/ΔT
Output voltage drift
IO = 5 mA
-1
mV/°C
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25°C
75
µV/VO
SVR
Supply voltage rejection
VI = 15 to 25 V, f = 120 Hz
55
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
V
RO
Output resistance
f = 1 kHz
18
m
Ω
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.35
A
Iscp
Short circuit peak current
TJ = 25°C
2.2
A
1.
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 cycle is used.



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