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LM2990S-5.0
+BOMIC REG LIN -5V 1.8A DDPAK/TO263
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제조업체텍사스 인스트루먼트(주)
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제조업체 부품 #LM2990S-5.0
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데이터시트 LM2990S-5.0 DataSheet
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패키지 TO-263
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재고6388
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사양
| 속성 | 가치 |
| Package | Tube |
| ProductStatus | Active |
| OutputConfiguration | Negative |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | -26V |
| Voltage-Output(Min/Fixed) | -5V |
| VoltageDropout(Max) | 1V @ 1A |
| Current-Output | 1.8A |
| Current-Quiescent(Iq) | 1 mA |
| Current-Supply(Max) | 5 mA |
| PSRR | 58dB (1kHz) |
| ProtectionFeatures | Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA |
개요
Description
Key features include short-circuit protection, thermal shutdown, and reverse polarity protection, enhancing its reliability in different operational environments. The LM2990S-5.0 is commonly used in applications like power supplies, battery-powered devices, and other electronic circuits needing a stable negative voltage rail.
This device is typically housed in a TO-220 or similar package, facilitating heat dissipation through a heatsink if necessary. Its design ensures ease of use with minimal external components required, making it a convenient choice for both professional and hobbyist electronic projects.
Equivalent
Features
1. Wide Input Voltage Range: It can handle input voltages from -16V to -26V, offering flexibility in various applications.
2. High Output Current: Capable of delivering up to 1.5A of output current, making it suitable for powering medium-load devices.
3. Low Dropout Voltage: The regulator exhibits a dropout voltage of approximately 0.6V at full load, ensuring efficient operation.
4. Thermal Overload Protection: Built-in thermal shutdown prevents damage caused by overheating.
5. Current Limiting: Protects against overcurrent conditions by limiting the output current.
6. Reverse Polarity Protection: Guards against damage from incorrect polarity connections.
7. Low Output Noise: Ensures minimal output voltage noise, which is critical for noise-sensitive applications.
8. TO-263 Package: The device comes in a compact surface-mount package, suitable for space-constrained designs.
These features make the LM2990S-5.0 a robust choice for providing stable negative voltage in a variety of electronic applications.
Pinout
1. Input (Pin 1): This is the pin where the input voltage is supplied. The voltage should be more negative than the desired output voltage.
2. Ground (GND) (Pin 2): This pin is connected to the ground of the circuit, providing a common reference point for the input and output voltages.
3. Output (Pin 3): The regulated output voltage is supplied through this pin. For the LM2990S-5.0, this would be a stable -5.0 volts under the specified conditions.
4. Shutdown (SD) (Pin 4): This pin is used to enable or disable the regulator. Pulling it to a high state turns off the regulator, while a low state enables it.
5. NC (No Connect) (Pin 5): This pin is not internally connected and can be left floating or grounded.
The LM2990S-5.0 is suitable for applications requiring negative voltage regulation with high precision and low dropout characteristics.