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LM317M Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer LM317M
Beschreibung MEDIUM CURRENT 1.2 TO 37V ADJUSTABLE VOLTAGE REGULATOR
Hersteller STMicroelectronics
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Gesamt 11 Seiten
LM317M Datasheet, Funktion
LM217M
LM317M
MEDIUM CURRENT
1.2 TO 37V ADJUSTABLE VOLTAGE REGULATOR
s OUTPUT VOLTAGE RANGE : 1.2 TO 37V
s OUTPUT CURRENT IN EXCESS OF 500 mA
s LINE REGULATION TYP. 0.01%
s LOAD REGULATION TYP. 0.1%
s THERMAL OVERLOAD PROTECTION
s SHORT CIRCUIT PROTECTION
s OUTPUT TRANSISTOR SAFE AREA
COMPENSATION
s FLOATING OPERATION FOR HIGH
VOLTAGE APPLICATIONS
DESCRIPTION
The LM217M/LM317M are monolithic integrated
circuits in TO-220, DPAK, SOT-82 and SOT-194
packages intended for use as positive adjustable
voltage regulators.
They are designed to supply until 500 mA of load
current with an output voltage adjustable over a
1.2 to 37V range.
The nominal output voltage is selected by means
of only a resistive divider, making the device
exceptionally easy to use and eliminating the
stocking of many fixed regulators.
SCHEMATIC DIAGRAM
TO-220
SOT-82
DPAK
TO-252
SOT-194
September 1997
1/11






LM317M Datasheet, Funktion
LM217M/LM317M
Figure 5 : Voltage Regulator with Protection Diodes.
LM317M
Figure 6 : Slow Turn-on 15V Regulator.
LM317M
Figure 7 : Current Regulator.
LM317M
Figure 8 : 5V Electronic Shut-down Regulator.
Io
=
Vref
R1
+
IADJ
1.25V
R1
Figure 9 : Digitally Selected Outputs.
LM317M
LM317M
6/11
(R2 sets maximum Vo)

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