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SEMTECH - 3-terminal 1A positive voltage regulator

Numéro de référence 7808
Description 3-terminal 1A positive voltage regulator
Fabricant SEMTECH 
Logo SEMTECH 





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7808 fiche technique
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
Input Voltage
Thermal Resistance Junction-Cases
Thermal Resistance Junction-Air
Operating Temperature Range
Storage Temperature Range
Symbol
VI
RθJC
RθJA
TOPR
TS
TO-220 Plastic Package
Value
35
5
65
0 to +125
-65 to +150
Units
V
OC/W
OC/W
OC
OC
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
Line Regulation 1)
Load Regulation 1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
VO
Regline
Regload
IQ
IQ
VO/T
VN
RR
VDrop
RO
ISC
IPK
TJ = + 25 OC
5 mA IO 1 A, PO 15 W
VI = 10.5 V to 23 V
TJ = + 25 OC
VI = 10.5 V to 25 V
VI = 11.5 V to 17 V
TJ = + 25 OC
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
TJ = + 25 OC
IO = 5 mA to 1 A
VI = 10.5 V to 25 V
IO = 5 mA
f = 10 Hz to 100 KHz, TA = + 25 OC
f = 120 Hz, VI = 11.5 V to 21.5 V
IO = 1 A, TJ = + 25 OC
f = 1 KHz
VI = 35 V, TA = + 25 OC
TJ = + 25 OC
7.7 8 8.3
7.6 8 8.4
V
- - 160
mV
- - 80
- - 160
mV
- - 80
- - 8 mA
- - 0.5
mA
- -1
- -0.8 - mV/OC
- 52 -
µV
56 - - dB
-2-
V
- 17 - m
- 230 -
mA
- 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.
SEMTECH ELECTRONICS LTD.
®
Dated17/09/2016 Rev02

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