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LD1117S33TR
+BOMIC REG LINEAR 3.3V 800MA SOT223
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ManufacturerSTMicroelectronics
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Mfr. Part #LD1117S33TR
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Datasheet LD1117S33TR DataSheet
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Package SOT-223
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In Stock6445
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 15V |
| Voltage-Output(Min/Fixed) | 3.3V |
| VoltageDropout(Max) | 1.2V @ 800mA |
| Current-Output | 800mA |
| Current-Quiescent(Iq) | 10 mA |
| PSRR | 75dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-261-4, TO-261AA |
Overview
Description
The LD1117S33TR is a low-dropout linear voltage regulator, part of the LD1117 family, designed to provide a stable and precise 3.3V output voltage. It is well-suited for applications that require a regulated power supply, such as microcontrollers, sensors, and communication devices.
This component typically operates with an input voltage ranging from slightly above 3.3V up to 15V, ensuring flexibility in various power supply scenarios. It features a dropout voltage of approximately 1.2V at full load, which means it can efficiently operate with minimal difference between input and output voltages.
The LD1117S33TR offers a maximum output current of 800mA, making it ideal for low to moderate power applications. Key features include thermal protection, current limiting, and short-circuit protection, enhancing its reliability under diverse operating conditions. It is commonly packaged in a surface-mount SOT-223, allowing for easy integration into compact PCBs.
Overall, the LD1117S33TR is valued for its simplicity, efficiency, and ability to deliver steady power in a wide range of electronic designs.
This component typically operates with an input voltage ranging from slightly above 3.3V up to 15V, ensuring flexibility in various power supply scenarios. It features a dropout voltage of approximately 1.2V at full load, which means it can efficiently operate with minimal difference between input and output voltages.
The LD1117S33TR offers a maximum output current of 800mA, making it ideal for low to moderate power applications. Key features include thermal protection, current limiting, and short-circuit protection, enhancing its reliability under diverse operating conditions. It is commonly packaged in a surface-mount SOT-223, allowing for easy integration into compact PCBs.
Overall, the LD1117S33TR is valued for its simplicity, efficiency, and ability to deliver steady power in a wide range of electronic designs.
Equivalent
Equivalent products to the LD1117S33TR voltage regulator include:
1. AMS1117-3.3 (Advanced Monolithic Systems)
2. LM1117-3.3 (Texas Instruments)
3. MIC29302 (Microchip Technology)
4. AP1117-3.3 (Diodes Incorporated)
5. NCP1117-3.3 (ON Semiconductor)
6. MCP1825S-3302E (Microchip Technology)
These alternatives offer similar performance characteristics, including output voltage, current capability, and package type. Always verify the specific requirements for your application to ensure compatibility.
1. AMS1117-3.3 (Advanced Monolithic Systems)
2. LM1117-3.3 (Texas Instruments)
3. MIC29302 (Microchip Technology)
4. AP1117-3.3 (Diodes Incorporated)
5. NCP1117-3.3 (ON Semiconductor)
6. MCP1825S-3302E (Microchip Technology)
These alternatives offer similar performance characteristics, including output voltage, current capability, and package type. Always verify the specific requirements for your application to ensure compatibility.
Features
The LD1117S33TR is a low-dropout linear voltage regulator from STMicroelectronics. Here are its key features:
1. Output Voltage: It provides a fixed output voltage of 3.3V.
2. Dropout Voltage: The device has a low dropout voltage, typically about 1.15V at full load.
3. Output Current: It supports an output current of up to 800 mA.
4. Stability: The regulator is designed to be stable with low ESR ceramic capacitors.
5. Precision: It offers high output voltage accuracy, typically within ±1%.
6. Protection: Includes both current and thermal limit protection to prevent damage under extreme conditions.
7. Package: Comes in a DPAK package, which is suitable for surface mounting.
8. Operating Temperature: Supports an operating temperature range from -40°C to +125°C, making it suitable for a wide range of applications.
9. Applications: Commonly used in battery-powered devices, consumer electronics, and other applications where stable voltage is critical.
These features make the LD1117S33TR a versatile choice for voltage regulation tasks in various electronic systems.
1. Output Voltage: It provides a fixed output voltage of 3.3V.
2. Dropout Voltage: The device has a low dropout voltage, typically about 1.15V at full load.
3. Output Current: It supports an output current of up to 800 mA.
4. Stability: The regulator is designed to be stable with low ESR ceramic capacitors.
5. Precision: It offers high output voltage accuracy, typically within ±1%.
6. Protection: Includes both current and thermal limit protection to prevent damage under extreme conditions.
7. Package: Comes in a DPAK package, which is suitable for surface mounting.
8. Operating Temperature: Supports an operating temperature range from -40°C to +125°C, making it suitable for a wide range of applications.
9. Applications: Commonly used in battery-powered devices, consumer electronics, and other applications where stable voltage is critical.
These features make the LD1117S33TR a versatile choice for voltage regulation tasks in various electronic systems.
Pinout
The LD1117S33TR is a low dropout voltage regulator. It typically comes in a SOT-223 package and has a 3-pin configuration. Here are the pin functions:
1. Pin 1 (ADJ/GND): This is the adjust or ground pin. For the fixed voltage version like LD1117S33TR (which outputs 3.3V), this pin acts as the ground.
2. Pin 2 (VOUT): This pin is the output of the regulator, providing a stable 3.3V output voltage.
3. Pin 3 (VIN): This is the input pin where the unregulated voltage is supplied to the regulator. It requires a higher voltage than the output voltage to function correctly, generally above 4.3V for a 3.3V output.
The LD1117S33TR is designed for applications requiring a stable 3.3V supply with a current up to 800mA and features a dropout voltage of approximately 1.1V at maximum load.
1. Pin 1 (ADJ/GND): This is the adjust or ground pin. For the fixed voltage version like LD1117S33TR (which outputs 3.3V), this pin acts as the ground.
2. Pin 2 (VOUT): This pin is the output of the regulator, providing a stable 3.3V output voltage.
3. Pin 3 (VIN): This is the input pin where the unregulated voltage is supplied to the regulator. It requires a higher voltage than the output voltage to function correctly, generally above 4.3V for a 3.3V output.
The LD1117S33TR is designed for applications requiring a stable 3.3V supply with a current up to 800mA and features a dropout voltage of approximately 1.1V at maximum load.
Manufacturer
The LD1117S33TR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. It operates in various sectors, including automotive, industrial, personal electronics, communications equipment, and internet of things (IoT). The company is known for its expertise in developing integrated circuits, sensors, power management devices, and other semiconductor technologies. With a focus on innovation and sustainability, STMicroelectronics contributes to advancements in electronics and technology across diverse industries.
Application
The LD1117S33TR is a low-dropout linear voltage regulator commonly used in various applications. It is ideal for microprocessor power supply, battery-powered devices, and consumer electronics due to its ability to provide a stable 3.3V output from a higher voltage input with minimal dropout. It is also suitable for post-regulation of switching power supplies, providing power to digital circuits, and RF applications where low noise is crucial. Additionally, it finds use in communication equipment and instrumentation that demand efficient power regulation and thermal performance.
Package
The LD1117S33TR is typically housed in a SOT-223 package. SOT-223 is a small outline package commonly used for surface-mount applications, providing efficient thermal performance and compact size for voltage regulator ICs like the LD1117 series.
