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LM317AL-TQ2-R Datasheet(PDF) 4 Page - E-Tech Electronics LTD

Part # LM317AL-TQ2-R
Description  MEDIUM CURRENT 1.2V TO 37V ADJUSTABLE VOLTAGE REGULATOR
PDF  5 Pages
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Manufacturer  ETL [E-Tech Electronics LTD]
Direct Link  http://e-tech.com.hk
Logo ETL - E-Tech Electronics LTD

LM317AL-TQ2-R Datasheet(HTML) 4 Page - E-Tech Electronics LTD

  LM317AL-TQ2-R Datasheet HTML 1Page - E-Tech Electronics LTD LM317AL-TQ2-R Datasheet HTML 2Page - E-Tech Electronics LTD LM317AL-TQ2-R Datasheet HTML 3Page - E-Tech Electronics LTD LM317AL-TQ2-R Datasheet HTML 4Page - E-Tech Electronics LTD LM317AL-TQ2-R Datasheet HTML 5Page - E-Tech Electronics LTD  
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LM317A
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 5
www.unisonic.com.tw
QW-R101-026.E
APPLICATION CIRCUITS
1
2
3
VOUT
R1
R2
VIN
C1
0.1μF
Co
1μF
I
ADJ
UTC LM317A
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.
1
2
3
VOUT
VIN
D1 1N4002
720Ω
120Ω
1kΩ
1μF
TTL Level
signal
UTC
LM317A
Fig.1 Programmable voltage regulator
Fig.2 Regulator with On-off control
mA
100
<
I
<
mA
5
2
R
+
1
R
V
25
.
1
=
I
+
)
2
R
+
1
R
V
(
=
I
1
R
V
25
.
1
=
I
+
)
1
R
V
(
=
I
OUT
ADJ
REF
)
MIN
(
O
ADJ
REF
)
MAX
(
O
Fig.3 Soft Start Application
Fig.4 Constant Current Application



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