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LM138 Datasheet(PDF) 6 Page - Texas Instruments

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Part # LM138
Description  5-Amp Adjustable Regulators
PDF  20 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM138 Datasheet(HTML) 6 Page - Texas Instruments

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Typical Performance Characteristics (Continued)
Minimum Operating
Current
Ripple Rejection
00906040
00906041
Ripple Rejection
Ripple Rejection
00906042
00906043
Line Transient Response
Load Transient Response
00906044
00906045
Application Hints
In operation, the LM138 develops a nominal 1.25V reference
voltage, V
REF, between the output and adjustment terminal.
The reference voltage is impressed across program resistor
R1 and, since the voltage is constant, a constant current I
1
then flows through the output set resistor R2, giving an
output voltage of
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