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LM317MDCY
+NomenclatureIC REG LINEAR POS ADJ SOT-223-4
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FabricantTexas Instruments
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Pièce fabricant #LM317MDCY
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Fiche technique LM317MDCY DataSheet
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En stock6766
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Spécifications
| Attribut | Valeur |
| Part Status | Active |
| Base Product Number | LM317 |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 37V |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 10 mA |
| PSRR | 80dB ~ 65dB (120Hz) |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-4 |
| Packaging | Tube |
Présentation
Description
Key features of the LM317MDCY include thermal overload protection, current limit protection, and safe operating area protection, ensuring reliable performance even under challenging conditions. This regulator is typically available in a SOT-223 package, making it suitable for compact and surface-mount applications.
To use the LM317MDCY, two external resistors are required to set the desired output voltage. It is commonly used in power supplies, battery chargers, and other applications where a precise voltage is necessary. Its ease of use, reliability, and wide range of output voltage make it a go-to choice for hobbyists and professionals alike.
Equivalent
Features
1. Adjustable Output Voltage: The device provides an output voltage range from 1.25V to 37V, allowing for flexibility in various electronic projects.
2. Output Current: It supports an output current of up to 500 mA, making it suitable for moderate power applications.
3. Load and Line Regulation: Offers excellent load (typical 0.1%) and line regulation (typical 0.01%/V), contributing to stable performance even under varying conditions.
4. Thermal Protection: Integrated thermal overload protection prevents damage due to excessive heat, enhancing reliability.
5. Current Limiting: Includes current limiting to guard against overcurrent conditions.
6. Safe Operating Area Protection: Ensures the device operates safely within its limits, increasing durability.
7. Package Options: Available in a surface-mount SOT-223 package, making it suitable for compact designs.
These features make the LM317MDCY ideal for adjustable power supplies, battery chargers, and other applications requiring a stable and adjustable voltage output.
Pinout
1. Input (Pin 3): This pin receives the unregulated input voltage that the LM317MDCY will regulate. It typically requires a voltage higher than the desired output voltage.
2. Output (Pin 2): This pin is where the regulated output voltage is delivered. The output voltage is adjustable via an external voltage divider (usually resistors) connected to the adjust pin.
3. Adjust (Pin 1): This pin sets the output voltage level. A resistor network connected between this pin, the output pin, and ground determines the regulated output voltage. The output voltage can be adjusted within a specified range according to the design of the resistor network.
The LM317MDCY is commonly used for applications requiring a stable voltage output, such as power supply circuits, and it typically offers an output voltage range of 1.25V to 37V.