IL317 View Datasheet(PDF) - Integral Corp.
Part Name
Description
Manufacturer
IL317 Datasheet PDF : 2 Pages
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IL317
THREE-TERMINAL ADJUSTABLE
OUTPUT POSITIVE VOLTAGE REGULATORS
The IL317 is adjustable 3-terminal positive voltage
regulator capable of supplying in excess of 1.5 A over an TO- 220 AB
output voltage range of 1.2 V to 37 V. These voltage
regulator is exceptionally easy to use and require only two
external resistors to set the output voltage. Further, it
employ internal current limiting, thermal shutdown and safe
area compensation, making
them essentially blow-out proof.
The IL317 serve a wide variety of applications to
Pin 1. Ajust
2. Vout
3. Vin
(H eatsink
surface connected
to Pin 2.)
make a programmable output regulator, or by connecting a
fixed resistor between the adjustment and output, the IL317 series can be used as a precision current
requlator.
Standard application
• Output Current in Excess of 1.5 Ampere
• Output Adjustable between 1.2 V and 37 V
• Internal Thermal Overload Protection
• Internal Short - Circuit Current Limiting Constant with
Temperature
• Output Transistor Safe-Area Compensation
• Floating Operation for High Voltage Applications
• Standard 3-lead Transistor Packages
• Eliminates Stocking Many Fixed
Maximum ratings
Vin
Ñin*
0.1µF
I L 317
Adjust
R2
Vout
R1
Ño**
1µF
∗ = Cin is required if regulator is located an ap-
preciable distance from power supply filter.
∗∗ = Co is not needed for stability ; however, is
does improve transient response.
I Vout
=
1.25V
(1 +
R2
R1
)
+
ADJ ∗ R2
Since I ADJ is controlled to less then 100 µA, the
error associated with this term is negligible in most
applications.
Rating
Input - Output Voltage Differential
Symbol
Value
Unit
Vi - Vo
40
Vdc
Power Dissipation and Thermal Characteristics
PD
Internally Limited
Operating Junction Temperature Rang
TJ
-0 to +150
°C
Storage Junction Temperature Rang
Tstg
-65 to +150
°C
1
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