規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage Dropout (Max) | 1.3V @ 800mA |
| Current - Output | 800mA |
| Current - Quiescent (Iq) | 10 mA |
| PSRR | 75dB (120Hz) |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
概述
Description
The LD1117DT33CTR is a low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It is part of the LD1117 series, which is designed to provide a fixed output voltage, specifically 3.3V, with a maximum output current of 800mA. This component is suitable for a wide range of applications requiring stable voltage regulation, such as microcontrollers, sensors, and other low-power devices.
Key features of the LD1117DT33CTR include its low dropout voltage of approximately 1.2V at maximum current, making it efficient in applications with minimal voltage headroom. It also offers thermal protection and short-circuit limits for enhanced reliability and safety. The device is packaged in a DPAK (TO-252) which is suitable for surface mount technology (SMT), providing a compact solution for circuit boards.
Overall, the LD1117DT33CTR is valued for its efficiency, reliability, and ease of use in applications requiring precise voltage regulation with moderate current demands.
Key features of the LD1117DT33CTR include its low dropout voltage of approximately 1.2V at maximum current, making it efficient in applications with minimal voltage headroom. It also offers thermal protection and short-circuit limits for enhanced reliability and safety. The device is packaged in a DPAK (TO-252) which is suitable for surface mount technology (SMT), providing a compact solution for circuit boards.
Overall, the LD1117DT33CTR is valued for its efficiency, reliability, and ease of use in applications requiring precise voltage regulation with moderate current demands.
Equivalent
The LD1117DT33CTR is a 3.3V low-dropout linear voltage regulator. Equivalent products include:
1. LM1117-3.3 from Texas Instruments
2. AMS1117-3.3 from Advanced Monolithic Systems
3. MIC29302-3.3WT from Microchip Technology
4. NCP1117-3.3 from ON Semiconductor
Always confirm specifications and pin configurations to ensure compatibility with your application.
1. LM1117-3.3 from Texas Instruments
2. AMS1117-3.3 from Advanced Monolithic Systems
3. MIC29302-3.3WT from Microchip Technology
4. NCP1117-3.3 from ON Semiconductor
Always confirm specifications and pin configurations to ensure compatibility with your application.
Features
The LD1117DT33CTR is a low dropout voltage regulator featuring the following key specifications and features:
1. Output Voltage: It provides a fixed output voltage of 3.3V.
2. Output Current: Capable of delivering up to 800 mA of output current.
3. Dropout Voltage: The regulator has a low dropout voltage, typically around 1.1V at maximum load current.
4. Accuracy: Features a high output voltage accuracy, typically within ±1%.
5. Thermal Protection: Includes built-in thermal shutdown to prevent overheating.
6. Short-Circuit Protection: Equipped with short-circuit protection to safeguard against output overloads.
7. Low Quiescent Current: Offers low quiescent current, which makes it efficient for battery-powered applications.
8. Package: Available in the DPAK surface-mount package, which is compatible with automated assembly processes.
9. Stability: Ensures good stability with low ESR capacitors.
10. Temperature Range: Operates over a wide temperature range, typically from -40°C to +125°C.
These features make the LD1117DT33CTR suitable for various applications, including consumer electronics, telecommunications, and industrial equipment requiring stable 3.3V power supply.
1. Output Voltage: It provides a fixed output voltage of 3.3V.
2. Output Current: Capable of delivering up to 800 mA of output current.
3. Dropout Voltage: The regulator has a low dropout voltage, typically around 1.1V at maximum load current.
4. Accuracy: Features a high output voltage accuracy, typically within ±1%.
5. Thermal Protection: Includes built-in thermal shutdown to prevent overheating.
6. Short-Circuit Protection: Equipped with short-circuit protection to safeguard against output overloads.
7. Low Quiescent Current: Offers low quiescent current, which makes it efficient for battery-powered applications.
8. Package: Available in the DPAK surface-mount package, which is compatible with automated assembly processes.
9. Stability: Ensures good stability with low ESR capacitors.
10. Temperature Range: Operates over a wide temperature range, typically from -40°C to +125°C.
These features make the LD1117DT33CTR suitable for various applications, including consumer electronics, telecommunications, and industrial equipment requiring stable 3.3V power supply.
Pinout
The LD1117DT33CTR is a low dropout voltage regulator from STMicroelectronics. It generally comes in a DPAK (TO-252) package and has a pin count of 3. The functions of the pins are as follows:
1. Input (Vin): This pin receives the input voltage, which should be higher than the output voltage by a specified dropout voltage to regulate the output properly.
2. Output (Vout): This pin provides the regulated output voltage. For the LD1117DT33CTR variant, this is typically fixed at 3.3V.
3. Ground (GND): This pin is the common ground reference for both the input and output, completing the circuit.
The LD1117 series is known for its low dropout voltage, making it suitable for applications where input and output voltages are close to each other. It is commonly used in projects requiring stable voltage regulation with minimal voltage difference between input and output.
1. Input (Vin): This pin receives the input voltage, which should be higher than the output voltage by a specified dropout voltage to regulate the output properly.
2. Output (Vout): This pin provides the regulated output voltage. For the LD1117DT33CTR variant, this is typically fixed at 3.3V.
3. Ground (GND): This pin is the common ground reference for both the input and output, completing the circuit.
The LD1117 series is known for its low dropout voltage, making it suitable for applications where input and output voltages are close to each other. It is commonly used in projects requiring stable voltage regulation with minimal voltage difference between input and output.
Manufacturer
The LD1117DT33CTR is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer. It is one of the leading semiconductor companies in the world, providing a wide range of integrated circuits and discrete devices for various applications. The company serves sectors such as automotive, industrial, personal electronics, communications equipment, computers, and peripherals. STMicroelectronics is known for its innovation in semiconductor technologies and has a global presence with operations in Europe, Asia, and the Americas.
Application
The LD1117DT33CTR is a low-dropout (LDO) linear voltage regulator commonly used in various applications. Its primary use is to provide a stable 3.3V output from a higher voltage input, making it ideal for powering microcontrollers and digital circuits. Key application areas include consumer electronics, telecommunications equipment, and computer peripherals. It is also used in battery-powered devices due to its low quiescent current. Additionally, it's suitable for use in power management systems, automotive electronics, and instrumentation as it offers stability, low noise, and efficient power regulation. Its compact size and thermal protection features make it versatile for space-constrained and thermally demanding applications.
Package
The LD1117DT33CTR is a linear voltage regulator in a TO-252 (DPAK) surface-mount package. It provides a fixed 3.3V output and is designed for applications requiring low dropout voltage and high current, up to 1A.
