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LM2937ES-3.3
+StücklisteIC REG LIN 3.3V 500MA DDPAK
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HerstellerTexas Instruments
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Herstellerteil #LM2937ES-3.3
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Paket TO-263-3
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Auf Lager6158
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package | Tube |
| ProductStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 26V |
| Voltage-Output(Min/Fixed) | 3.3V |
| VoltageDropout(Max) | 1V @ 50mA |
| Current-Output | 500mA |
| Current-Quiescent(Iq) | 2 mA |
| Current-Supply(Max) | 1.25 A |
| ProtectionFeatures | Over Temperature, Reverse Polarity, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA |
Übersicht
Description
The LM2937ES-3.3 is commonly used in automotive, industrial, and consumer electronics where efficient power regulation is crucial. Its easy-to-use design requires minimal external components, typically just input and output capacitors, which simplifies implementation in various applications. The device comes in a TO-263 surface-mount package, which provides good thermal performance, ensuring that it operates effectively even under high load conditions. Overall, the LM2937ES-3.3 is a robust and reliable solution for providing a stable 3.3V power supply in a variety of electronic systems.
Equivalent
1. LM1117-3.3: Another popular 3.3V LDO regulator with similar characteristics.
2. MIC29300-3.3WT: A high-performance LDO regulator with a 3.3V output.
3. NCP1117ST33T3G: A 3.3V LDO with similar performance.
4. LD1117V33: Provides a 3.3V output with low dropout voltage.
These alternatives vary slightly in specifications, so ensure compatibility with specific application requirements.
Features
1. Output Current: Capable of providing up to 500 mA of output current.
2. Low Dropout Voltage: Offers a dropout voltage of approximately 0.5V at full load, enhancing efficiency.
3. Thermal Protection: Includes internal thermal shutdown to prevent overheating.
4. Short-Circuit Protection: Features current limiting to safeguard against overload.
5. Stability: Requires only a small output capacitor for stability, making it easy to use in various applications.
6. Wide Input Voltage Range: Operates over a wide input range, typically up to 26V.
7. Low Quiescent Current: Ensures efficient operation with minimal power consumption in standby mode.
8. Packaging: Comes in a TO-263 surface-mount package, suitable for space-constrained designs.
These attributes make the LM2937ES-3.3 a versatile and reliable choice for powering electronic circuits with a need for stable 3.3V supply.
Pinout
1. Input (Pin 1): This pin receives the unregulated input voltage. The input voltage must be higher than the output voltage to ensure proper regulation.
2. Ground (Pin 2): This pin is connected to the ground of the circuit. It serves as the common reference point for the input and output voltages.
3. Output (Pin 3): This pin provides the regulated 3.3V output. It connects to the load that requires the stable voltage supply.
The LM2937ES-3.3 is known for its low dropout voltage, making it suitable for applications where the input voltage is close to the output voltage. It also features built-in current limiting and thermal shutdown protection, enhancing its reliability in various applications.
Manufacturer
Application
1. Embedded Systems: Used for providing power to microcontrollers and other digital components.
2. Consumer Electronics: Powers various devices like routers, modems, and portable gadgets.
3. Automotive Systems: Suitable for in-car electronics due to its low dropout feature and thermal protection.
4. Industrial Equipment: Supports sensors and control circuits needing a consistent voltage supply.
5. Communication Devices: Used in networking hardware to stabilize power to transmission components.
Its robust design, including protection features, makes it ideal for applications where reliability is critical.