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L7820T Datasheet(PDF) 5 Page - STMicroelectronics

No. de pieza L7820T
Descripción Electrónicos  POSITIVE VOLTAGE REGULATORS
Download  34 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7820T Datasheet(HTML) 5 Page - STMicroelectronics

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L7800 SERIES
5/34
Figure 7: Ripple Rejection
Table 4: Electrical Characteristics Of L7805 (refer to the test circuits, TJ = -55 to 150°C, VI = 10V,
IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
(*) 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.
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 ≤ 15W
VI = 8 to 20 V
4.65
5
5.35
V
∆V
O(*)
Line Regulation
VI = 7 to 25 V
TJ = 25°C
3
50
mV
VI = 8 to 12 V
TJ = 25°C
1
25
∆V
O(*)
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
∆I
d
Quiescent Current Change
IO = 5 mA to 1 A
0.5
mA
VI = 8 to 25 V
0.8
∆V
O/∆T
Output Voltage Drift
IO = 5 mA
0.6
mV/°C
eN
Output Noise Voltage
B =10Hz to 100KHz
TJ = 25°C
40
µV/V
O
SVR
Supply Voltage Rejection
VI = 8 to 18 V
f = 120Hz
68
dB
Vd
Dropout Voltage
IO = 1 A
TJ = 25°C
2
2.5
V
RO
Output Resistance
f = 1 KHz
17
m
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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