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LM317BTG
+StücklisteIC REG LINEAR POS ADJ 1.5A TO220
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HerstellerOnsemi
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Herstellerteil #LM317BTG
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Paket TO220
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Auf Lager4077
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package | Bulk,Tube |
| 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 |
| Current-Quiescent(Iq) | 10 mA |
| PSRR | 80dB ~ 65dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Through Hole |
| Package/Case | TO-220-3 |
Übersicht
Description
The LM317BTG is commonly used in power supply circuits, battery chargers, and adjustable power supplies. Its TO-220 package allows for effective heat dissipation, which is crucial for maintaining performance. The device's ability to provide a constant voltage output in varying input conditions makes it ideal for applications where precise voltage regulation is necessary.
Overall, the LM317BTG is a widely used component due to its simplicity, efficiency, and reliability in delivering adjustable voltage regulation solutions in both hobbyist and professional electronic projects.
Equivalent
Features
1. Output Voltage Range: It allows for an adjustable output voltage from 1.25V to 37V, making it highly flexible for various applications.
2. Output Current: Capable of providing over 1.5A of output current, suitable for medium-power applications.
3. Line Regulation: It offers a high level of line regulation, typically maintaining ±0.01%/V, which ensures stable output despite input voltage variations.
4. Load Regulation: Exhibits load regulation of 0.1%, ensuring consistent performance under varying load conditions.
5. Thermal Overload Protection: It includes built-in thermal overload protection to prevent damage from overheating.
6. Current Limiting: Features current limiting to protect against excessive currents that could harm the circuit.
7. Safe Operating Area Protection: Designed to prevent the device from being damaged under various operating conditions.
8. Dropout Voltage: Has a dropout voltage of approximately 3V.
These features make the LM317BTG suitable for use in a wide range of applications, including power supplies and battery chargers.
Pinout
1. Input (Vin): The pin where the unregulated input voltage is applied. It should be at least 3V higher than the desired output voltage for proper regulation.
2. Output (Vout): This pin provides the regulated output voltage. The voltage is adjustable using a pair of external resistors connected to the Adjust pin.
3. Adjust (Adj): This pin is used to set the output voltage. By connecting a resistor divider between the output and ground, the output voltage can be adjusted according to the formula: Vout = 1.25V * (1 + R2/R1) + Iadj * R2, where Iadj is the adjust pin current, typically around 50µA and R1 and R2 are the resistor values.
The LM317BTG is commonly used in applications requiring a simple and flexible voltage regulation solution, such as power supplies and battery chargers.