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LM317 Series 1.5 A 1.2 to 37 V Adjustable Positive Voltage Regulator - TO-220

Modèle ECAD:
Nom du fabricant: STMicroelectronics
Emballage standard:
Product Variant Information section
Code de date: 2045
Product Specification Section
Caractéristiques techniques
Attributes Table
Input Voltage-Max: 40V
Output Voltage Range: 1.2V to 37V
Output Voltage Fixed: 1.2V/37V
Output Current-Max: 1.5A
Operating Temp Range: 0°C to 125°C
Regulator Topology: Adjustable
No. of Outputs: Single
Load Regulation: 70mV
Load Regulation (%): 1.5%
Line Regulation (%): 0.07%
Style d'emballage :  TO-220-3 (TO-220AB)
Fonctionnalités et applications

Linear regulators are Step-Down regulators only. There are 2 types of regulators, Shunt and series-pass regulators.

For IC linear voltage regulators, the regulator type determines the configuration of the pass device as well as the dropout voltage. Standard voltage regulators use an NPN Darlington configuration and have a dropout voltage between 1.5V and 2.2 V. Low dropout (LDO) regulators differ from standard regulators in that the pass device consists of a single PNP transistor.

Linear regulators provide significant advantages over switching regulators in simplicity, cost, and output noise.

The only difference between a 'normal' linear regulator and a LDO one is that, the LDO type can have a lower constant voltage-drop across the series-pass element.

This device is a monlithic integrated circuit in TO-220, ISOWATT220™, TO-3 and D2PAK. It is designed to supply more than 1.5A of load current with an output volatge 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.

The ST Micro LM317T is a 1.5 Amp Positive Adjustable Voltage Regulator. It comes in a TO 220 Tube Package.

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13 450
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13 450
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453 418
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