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7808 Arkusz danych(PDF) 1 Page - SEMTECH ELECTRONICS LTD.

Numer części 7808
Szczegółowy opis  3-terminal 1 A positive voltage regulator
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Producent  SEMTECH_ELEC [SEMTECH ELECTRONICS LTD.]
Strona internetowa  http://www.semtech.net.cn
Logo SEMTECH_ELEC - SEMTECH ELECTRONICS LTD.

7808 Arkusz danych(HTML) 1 Page - SEMTECH ELECTRONICS LTD.

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Dated17/09/2016 Rev02
®
SEMTECH ELECTRONICS LTD.
7808
3-terminal 1 A positive voltage regulator
Features
• Output Current up to 1 A
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection
Absolute Maximum Ratings (Ta = 25 OC)
Parameter
Symbol
Value
Units
Input Voltage
VI
35
V
Thermal Resistance Junction-Cases
RθJC
5
O
C/W
Thermal Resistance Junction-Air
RθJA
65
O
C/W
Operating Temperature Range
TOPR
0 to +125
O
C
Storage Temperature Range
TS
-65 to +150
O
C
Electrical Characteristics
(0 OC < TJ < 125 OC, IO = 500 mA, VI = 14 V, CI = 0.33 µF, CO = 0.1 µF, unless otherwise specified)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Output Voltage
VO
TJ = + 25 OC
7.7
8
8.3
V
5 mA  IO  1 A, PO  15 W
VI = 10.5 V to 23 V
7.6
8
8.4
Line Regulation
1)
Regline TJ = + 25 OC
VI = 10.5 V to 25 V
-
-
160
mV
VI = 11.5 V to 17 V
-
-
80
Load Regulation
1)
Regload TJ = + 25 OC
IO = 5 mA to 1.5 A
-
-
160
mV
IO = 250 mA to 750 mA
-
-
80
Quiescent Current
IQ
TJ = + 25 OC
-
-
8
mA
Quiescent Current Change
IQ
IO = 5 mA to 1 A
-
-
0.5
mA
VI = 10.5 V to 25 V
-
-
1
Output Voltage Drift
VO/T IO = 5 mA
-
-0.8
-
mV/OC
Output Noise Voltage
VN
f = 10 Hz to 100 KHz, TA = + 25 OC
-
52
-
µV
Ripple Rejection
RR
f = 120 Hz, VI = 11.5 V to 21.5 V
56
-
-
dB
Dropout Voltage
VDrop
IO = 1 A, TJ = + 25 OC
-
2
-
V
Output Resistance
RO
f = 1 KHz
-
17
-
mΩ
Short Circuit Current
ISC
VI = 35 V, TA = + 25 OC
-
230
-
mA
Peak Current
IPK
TJ = + 25 OC
-
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 is used.
TO-220 Plastic Package


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