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LM317D2T-TR
+StücklisteIC REG LINEAR POS ADJ 1.5A D2PAK
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HerstellerSTMikroelektronik
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Herstellerteil #LM317D2T-TR
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Datenblatt LM317D2T-TR DataSheet
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Paket TO-263-3
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Auf Lager6729
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.2V |
| Voltage-Output(Max) | 37V |
| Current-Output | 1.5A |
| PSRR | 80dB ~ 65dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB |
Übersicht
Description
This regulator features internal current limiting, thermal overload protection, and safe area compensation, enhancing its robustness and reliability. The "D2T" in its name indicates its D-Pak surface-mount packaging, which is compact and suitable for modern PCB designs.
The LM317D2T-TR requires only two external resistors to set the output voltage, simplifying circuit design. Its low dropout voltage, typically around 2V, allows it to operate efficiently with small input-output voltage differentials. Common applications include power supplies, battery chargers, and current regulators. This component is favored for its balance of performance, cost, and ease of implementation in both consumer and industrial electronic projects.
Equivalent
Features
1. Adjustable Output Voltage: It provides an output voltage range of 1.25V to 37V, allowing for precise voltage regulation.
2. Output Current: It can deliver output currents up to 1.5A.
3. Thermal Regulation: Equipped with over-temperature protection to prevent damage from overheating.
4. Current Limiting: Offers inherent current limiting for safe operation under overload conditions.
5. Load Regulation: Provides excellent load regulation, ensuring stable output voltage despite varying load conditions.
6. Line Regulation: Exhibits good line regulation, maintaining output stability even with input voltage fluctuations.
7. Dropout Voltage: Features a low dropout voltage, typically 3V, enhancing efficiency.
8. Package Type: Available in a D2PAK surface-mount package, suitable for compact designs.
9. Reliability: Known for robustness and reliability in various applications, from power supplies to embedded systems.
These features make the LM317D2T-TR a popular choice for adjustable power supply designs and other electronic applications requiring stable voltage regulation.
Pinout
The three pins are as follows:
1. Input (IN): This pin receives the unregulated input voltage which needs to be regulated.
2. Output (OUT): This pin provides the regulated output voltage.
3. Adjustment (ADJ): This pin is used to adjust the output voltage. By connecting a resistor between this pin and the output pin, and another resistor from this pin to ground, the output voltage can be set to the desired level.
The LM317 is widely used for its versatility and ease of use in various applications requiring a regulated voltage output.