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LM317AG-AA3-R View Datasheet(PDF) - Unisonic Technologies

Part Name
Description
Manufacturer
LM317AG-AA3-R Datasheet PDF : 5 Pages
1 2 3 4 5
LM317A
„ APPLICATION CIRCUITS
VIN
C1
0.1μF
3 UTC LM317A 2
IADJ
1
R1
R2
VOUT
Co
1μF
LINEAR INTEGRATED CIRCUIT
D1 1N4002
VIN
3
UTC
2
LM317A
1
120Ω
VOUT
1μF
VOUT=1.25V×(1+R2/R1)+IADJ×R2
C1 is required when regulator is located an
appreciated distance from power supply. Co is
needed to improve transient response.
Fig.1 Programmable voltage regulator
720Ω
1kΩ
TTL Level
signal
Fig.2 Regulator with On-off control
Fig.3 Soft Start Application
VREF
1.25V
IO(MAX) = ( R1 ) + IADJ = R1
VREF
1.25V
IO(MIN) = (
) + IADJ =
R1+ R2
R1+ R2
5mA < IOUT < 100mA
Fig.4 Constant Current Application
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 5
QW-R101-026.C
 

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