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PJ317

Description
3-Terminal Adjustable Output Positive Voltage Regulator
File Size354KB,11 Pages
ManufacturerETC
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PJ317 Overview

3-Terminal Adjustable Output Positive Voltage Regulator

PJ317
3-Terminal Adjustable Output Positive Voltage Regulator
T
he PJ317 is adjustable 3-terminal positive voltage
regulator capable of supplying in excess of 1.5 A
external resistors to set the output voltage. Further,
it
employs internal current limiting, thermal shutdown and
safe area compensation, making it essentially blow-out
proof.
over an output voltage range of 1.25 V to 37 V. This voltage
regulator is exceptionally easy to use and require only two
FEATURES
Output Current in Excess of 1.5 Ampere
Output Adjustable between 1.25 V and 37 V
Internal Thermal Overload Protection
Internal Short-Circuit Current Limiting
TO-220
TO-220 / TO-263 / TO-
92/ TO-252 / SOT-223
Pin 1. Adjust
2. Vout
3. Vin
Heatsink surface
connected to Pin2
TO-263
Constant with Temperature
Output Transistor Safe-Area Compensation
Floating Operation for High Voltage Applications
Standard 3-lead Transistor Packages
Eliminates Stocking Many Fixed Voltages
TO-92
TO-252
SOT-223
ORDERING INFORMATION
Device
Operating
Temperature
Package
Design
Load
Current
1.5A
1.5A
0.1A
0.5A
1A
0.3A
SOP-8
Pin 1. Vin
2. Vout
3. Vout
4. Adjust
5. Nc
6. Vout
7. Vout
8. Nc
PJ317CZ
PJ317CM
PJ317CT
PJ317CP
PJ317CW
PJ317CS
-20℃ to 85℃
TO-220
TO-263
TO-92
TO-252
SOT-223
SOP-8
CIRCUIT SCHEMATIC
STANDARD APPLICATION
* = Cin is required if regulator is located an appreciable distance from power supply filter.
** = Co is not needed for stability, however it does improve transient response.
V
out
= 1.25 V (1 + R
2
/ R
1
) + I
Adj
R
2
Since I
Adj
is controlled to less than 100
µA,
the error associated with this term is negligible in most applications
1-11
2002/10.rev.A

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PJ317 PJ317CM PJ317CT PJ317CZ PJ317CW PJ317CS PJ317CP
Description 3-Terminal Adjustable Output Positive Voltage Regulator 3-Terminal Adjustable Output Positive Voltage Regulator 3-Terminal Adjustable Output Positive Voltage Regulator 3-Terminal Adjustable Output Positive Voltage Regulator 3-Terminal Adjustable Output Positive Voltage Regulator 3-Terminal Adjustable Output Positive Voltage Regulator 3-Terminal Adjustable Output Positive Voltage Regulator
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