SP317
SP317 is 3-Terminal 1 Amp Adjustable Voltage Regulator manufactured by Sipex Corporation.
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3-Terminal 1 Amp Adjustable Voltage Regulator
Features g g g g g g g g Typical 1% Output Voltage Tolerance Typical 0.01%/V Line Regulation Typical 0.2% Load Regulation Very Low Dropout Voltage: 1.2V at 1A Output Current Trimmed Current Limit On-chip Thermal Protection Operation Junction Temperature: 0 to 125o C Available in Ro HS pliant, Lead Free Packaging TO-220 Package
3 VOUT 2 1
INPUT OUTPUT ADJ
Applications g g g g g g g PC Motherboard LCD Monitor Graphics Card DVD Player Network Interface Card/Switch Tele Equipment Printer and other Peripheral Equipment general Description
The SP317 is an adjustable three-terminal positive voltage regulator with a very low dropout of 1.2V at 1A output current. Using 2 external resistors, the SP317 can provide an adjustable output voltage down to 1.25V. The SP317 includes a circuit of trimmed bandgap reference to assure output voltage accuracy to be within 1%. It also provides current limiting and thermal shutdown. The current limit is trimmed to ensure specified output current and controlled short-circuit current. The On-chip thermal limiting provides protection against any bination of overload and ambient temperature that would create excessive junction temperature. The SP317 is available in the standard SOT-223, TO-220, TO-252 and TO-263 power packages.
SOT-223
TO-220
TO-22
TO-263
Figure . Package Types of SP37
Date: 7/27/06 Rev F SP317 3-Terminal 1Amp Adjustable Voltage Regulator © 2006 Sipex Corporation
Pin configuration
J Package (SOT-223) V Package (TO-220)
INPUT OUTPUT ADJ VOUT
3 VOUT 2 1
3 2 1
INPUT OUTPUT ADJ
V2 Package (TO-22)
3 VOUT 2 INPUT OUTPUT
V Package (TO-263)
3 2 INPUT OUTPUT ADJ
Figure 2. Pin Configuration of SP37 (Top View)
Functional Block Diagram
INPUT
Thermal Shutdown
Current Limiter...
