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LM1117T-3.3
+Lista de MateriaisIC REG LINEAR 3.3V 800MA TO220-3
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FabricanteTexas Instruments
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Peça do Fabricante #LM1117T-3.3
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Pacote TO-220-3
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Especificações
| Atributo | Valor |
| Package / Case | Tube |
| Series | LM1117-3.3 |
| Part Status | Obsolete |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage Dropout (Max) | 1.2V @ 800mA |
| Current - Output | 800mA |
| Current - Quiescent (Iq) | 5 mA |
| Current - Supply (Max) | 10 mA |
| PSRR | 75dB (120Hz) |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | 0°C ~ 125°C |
| Mounting Type | Through Hole |
Visão Geral
Description
Key features include a dropout voltage of approximately 1.2V at full load, ensuring efficient performance in low-voltage situations. The device includes built-in protection mechanisms like short-circuit protection and thermal overload protection to enhance reliability and safety. Its TO-220 package allows for efficient heat dissipation, which is crucial for maintaining performance under higher current loads.
The LM1117T-3.3 is widely used in microcontrollers, sensors, and communication devices, where a stable 3.3V power supply is necessary. Its ease of use and robust performance make it a favored choice in both amateur electronics projects and professional applications.
Equivalent
Features
1. Output Voltage: 3.3V with a maximum current output of 800mA.
2. Input Voltage: Requires a minimum input of 4.25V to function properly.
3. Low Dropout Voltage: Typically around 1.2V at full load, allowing for efficient operation.
4. Output Capacitor Requirement: A minimum of 10μF is needed to ensure stability.
5. Thermal Protection: Built-in to prevent overheating and ensure reliable operation under varying conditions.
6. Short-Circuit Protection: Safeguards the device against damage from output short circuits.
7. Overcurrent Protection: Limits current to prevent damage due to overcurrent conditions.
8. Package: Typically available in a TO-220 package, facilitating easy mounting and heat dissipation.
9. Applications: Widely used in applications requiring a stable 3.3V power supply, such as microcontrollers, and other digital circuits.
These features make the LM1117T-3.3 a popular choice for maintaining a steady voltage supply in electronic projects and systems.
Pinout
1. Input (Vin): This pin receives the input voltage, which should be higher than the 3.3V output plus the dropout voltage for proper regulation.
2. Ground (GND): This is the common ground pin for both the input and output voltages.
3. Output (Vout): This pin provides the regulated 3.3V output voltage.
The LM1117T-3.3 can supply a maximum output current of around 800 mA, making it suitable for powering low-power circuitry. Its dropout voltage is relatively low, around 1.2V at full load, which helps in efficient operation when the input voltage is close to the output voltage. Additionally, the device includes features like current limiting and thermal protection.
Manufacturer
Application
1. Microcontroller Power Supply: Provides the necessary voltage for microcontrollers and digital circuits.
2. Embedded Systems: Used in embedded systems requiring a 3.3V supply.
3. Networking Equipment: Powers components in routers and switches.
4. Consumer Electronics: Used in devices like set-top boxes and DVD players.
5. Portable Devices: Powers handheld gadgets and portable instrumentation.
6. Communication Devices: Supports power requirements in communication equipment.
7. Automotive Electronics: Used in dashboard electronics and infotainment systems.
Its low dropout voltage and high accuracy make it versatile for various electronic projects.