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L7820CD2T-TR1 数据表(PDF) 11 Page - STMicroelectronics

部件名 L7820CD2T-TR1
功能描述  Positive voltage regulators
Download  52 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L7820CD2T-TR1 数据表(HTML) 11 Page - STMicroelectronics

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L78xx - L78xxC
Electrical characteristics
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5
Electrical characteristics
Table 4.
Electrical characteristics of L7805 (refer to the test circuits, TJ = -55 to 150°C, VI = 10 V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
4.8
5
5.2
V
VO
Output voltage
IO = 5 mA to 1 A, PO ≤15 W
VI = 8 to 20 V
4.65
5
5.35
V
ΔVO(1)
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.
Line regulation
VI = 7 to 25 V, TJ = 25°C
3
50
mV
VI = 8 to 12 V, TJ = 25°C
1
25
ΔVO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25°C
100
mV
IO = 250 to 750 mA, TJ = 25°C
25
Id
Quiescent current
TJ = 25°C
6
mA
ΔId
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 8 to 25 V
0.8
ΔVO/ΔT Output voltage drift
IO = 5 mA
0.6
mV/°C
eN
Output noise voltage
B =10 Hz to 100 KHz, TJ = 25°C
40
µV/VO
SVR
Supply voltage rejection
VI = 8 to 18 V, f = 120 Hz
68
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
2.5
V
RO
Output resistance
f = 1 KHz
17
m
Ω
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.75
1.2
A
Iscp
Short circuit peak current
TJ = 25°C
1.3
2.2
3.3
A


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