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LF33CDT-TR
+Lista de MateriaisIC REG LINEAR 3.3V 500MA DPAK
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FabricanteSTMicroeletrônica
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Peça do Fabricante #LF33CDT-TR
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Ficha Técnica LF33CDT-TR DataSheet
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Pacote TO-252-3
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage Dropout (Max) | 0.7V @ 500mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 1 mA |
| Current - Supply (Max) | 12 mA |
| PSRR | 80dB ~ 65dB (120Hz ~ 65dB) |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features include low dropout voltage, typically 0.45V at full load, internal current and thermal limiting, and a wide input voltage range (up to 18V). Its small dropout voltage makes it ideal for applications where efficiency is critical. The regulator is packaged in a DPAK for surface-mounted applications, ensuring ease of integration into compact designs.
The LF33CDT-TR is commonly used in consumer electronics, computer systems, and automotive electronics where a reliable 3.3V power supply is necessary. Its robustness and reliability are enhanced by built-in protection features against overcurrent and overheating, making it a versatile choice for various electronic applications.
Equivalent
1. LM1117 from Texas Instruments
2. AMS1117 from Advanced Monolithic Systems
3. NCP1117 from ON Semiconductor
4. REG1117 from Texas Instruments
5. AZ1117 from Diodes Incorporated
These alternatives offer similar voltage regulation features and pin configurations but may vary slightly in terms of specific electrical characteristics. Always verify compatibility with your application requirements before substituting.
Features
1. Output Voltage: Offers a fixed output voltage of 3.3V.
2. Low Dropout Voltage: Provides a dropout voltage of approximately 0.45V at a 500mA load, allowing efficient operation close to the output voltage level.
3. Output Current: Capable of delivering up to 1A output current.
4. Stability: Designed with internal frequency compensation, which ensures stable operation with low ESR capacitors.
5. Thermal Protection: Includes built-in thermal shutdown circuitry to protect against overheating.
6. Short-Circuit Protection: Integrated short-circuit current limiting to safeguard against excessive currents.
7. Low Quiescent Current: Offers low quiescent current, making it suitable for battery-powered applications.
8. Package Type: Available in a DPAK surface-mount package, aiding in compact PCB designs.
9. Operating Temperature: Supports an extended temperature range, typically from -40°C to +125°C, suitable for various environmental conditions.
These features make the LF33CDT-TR ideal for use in consumer electronics, communication devices, and other applications requiring efficient voltage regulation.
Pinout
The pin functions are as follows:
1. Input (Vin): This is the pin where the input voltage is supplied. The device regulates this input voltage down to a stable 3.3V output.
2. Ground (GND): This pin acts as the common ground for the input and output voltages.
3. Output (Vout): This pin provides the regulated 3.3V output.
The LF33CDT-TR is designed for applications requiring a stable 3.3V power supply and can deliver a maximum current of up to 3A, making it suitable for various electronic devices and systems. The device offers features such as thermal protection and short-circuit protection to ensure reliable operation.