規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 20V |
| Voltage-Output(Min/Fixed) | 3.3V |
| VoltageDropout(Max) | 1.2V @ 800mA |
| Current-Output | 1A |
| Current-Quiescent(Iq) | 10 mA |
| PSRR | 64dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-252-3, DPak (2 Leads + Tab), SC-63 |
概述
Description
The NCP1117DT33G is a low dropout (LDO) linear voltage regulator designed by ON Semiconductor. It offers a fixed output voltage of 3.3V with a maximum output current of 1A. The device is known for its low dropout voltage of approximately 1.2V at full load, making it suitable for applications where efficient power conversion is essential. It features a thermal shutdown and current limiting to protect against overload conditions. The NCP1117DT33G is commonly used in consumer electronics, industrial applications, and computing systems due to its reliable performance and ease of use. The package type is DPAK, which supports efficient heat dissipation. This regulator operates over a wide input voltage range and ensures stable operation with low output voltage noise. It is typically chosen for applications where space is constrained and a simple, cost-effective voltage regulation solution is required.
Equivalent
The NCP1117DT33G is a 3.3V voltage regulator. Equivalent products include:
1. LM1117-3.3 from Texas Instruments
2. AMS1117-3.3 from Advanced Monolithic Systems
3. LD1117V33 from STMicroelectronics
4. MIC29302 from Microchip Technology
These equivalents offer similar voltage regulation capabilities and pin configurations, but it's essential to verify specific electrical characteristics and thermal performance for compatibility with your application.
1. LM1117-3.3 from Texas Instruments
2. AMS1117-3.3 from Advanced Monolithic Systems
3. LD1117V33 from STMicroelectronics
4. MIC29302 from Microchip Technology
These equivalents offer similar voltage regulation capabilities and pin configurations, but it's essential to verify specific electrical characteristics and thermal performance for compatibility with your application.
Features
The NCP1117DT33G is a low dropout (LDO) voltage regulator designed for applications requiring a constant output voltage. Key features include:
1. Output Voltage: It provides a fixed output voltage of 3.3V.
2. Output Current: Capable of delivering a maximum output current of 1A.
3. Low Dropout Voltage: Features a low dropout voltage of approximately 1.2V at full load, making it efficient for battery-powered devices.
4. Thermal Protection: Includes built-in protection against overheating, ensuring reliability in varying thermal conditions.
5. Short-Circuit Protection: Equipped with protection mechanisms to prevent damage due to output short circuits.
6. Stability: Requires only a few external components for stable operation, typically a combination of input and output capacitors.
7. Package: Available in a DPAK (TO-252) surface mount package, which is suitable for space-constrained applications.
8. Wide Input Voltage Range: Supports a broad input voltage range, generally from 4.75V to 20V, accommodating various power sources.
These features make the NCP1117DT33G suitable for use in consumer electronics, automotive applications, and other electronic devices requiring a reliable 3.3V power supply.
1. Output Voltage: It provides a fixed output voltage of 3.3V.
2. Output Current: Capable of delivering a maximum output current of 1A.
3. Low Dropout Voltage: Features a low dropout voltage of approximately 1.2V at full load, making it efficient for battery-powered devices.
4. Thermal Protection: Includes built-in protection against overheating, ensuring reliability in varying thermal conditions.
5. Short-Circuit Protection: Equipped with protection mechanisms to prevent damage due to output short circuits.
6. Stability: Requires only a few external components for stable operation, typically a combination of input and output capacitors.
7. Package: Available in a DPAK (TO-252) surface mount package, which is suitable for space-constrained applications.
8. Wide Input Voltage Range: Supports a broad input voltage range, generally from 4.75V to 20V, accommodating various power sources.
These features make the NCP1117DT33G suitable for use in consumer electronics, automotive applications, and other electronic devices requiring a reliable 3.3V power supply.
Pinout
The NCP1117DT33G is a voltage regulator with a 3.3V fixed output. It is typically available in a DPAK package, which has three pins. The pin functions are as follows:
1. Pin 1 (ADJ/GND): For the fixed 3.3V version, this pin acts as the ground (GND). In adjustable versions of the NCP1117, this would be the adjust pin (ADJ).
2. Pin 2 (Vout): This is the output pin where the regulated 3.3V voltage is provided.
3. Pin 3 (Vin): This pin is the input for the unregulated voltage, which should be higher than the desired output voltage (3.3V in this case).
Additionally, the tab or metal plate on the DPAK package is usually connected to Pin 2 (Vout) and can also be used for heat dissipation purposes. The NCP1117 series is known for its low dropout voltage and is used in applications requiring a simple and efficient voltage regulation solution.
1. Pin 1 (ADJ/GND): For the fixed 3.3V version, this pin acts as the ground (GND). In adjustable versions of the NCP1117, this would be the adjust pin (ADJ).
2. Pin 2 (Vout): This is the output pin where the regulated 3.3V voltage is provided.
3. Pin 3 (Vin): This pin is the input for the unregulated voltage, which should be higher than the desired output voltage (3.3V in this case).
Additionally, the tab or metal plate on the DPAK package is usually connected to Pin 2 (Vout) and can also be used for heat dissipation purposes. The NCP1117 series is known for its low dropout voltage and is used in applications requiring a simple and efficient voltage regulation solution.
Manufacturer
The NCP1117DT33G is manufactured by ON Semiconductor. ON Semiconductor, now known as onsemi, is a multinational company that specializes in semiconductor manufacturing. They design, produce, and supply a wide range of semiconductor components used in various electronic products and systems. These components include power and signal management, logic, discrete, and custom devices. The company serves a variety of industries, such as automotive, industrial, consumer electronics, communications, and computing, providing solutions that enable energy-efficient innovations. Known for its focus on innovation and sustainability, onsemi plays a critical role in the development of technologies for electric vehicles, smart grids, and industrial automation, among other applications.
Application
The NCP1117DT33G is a low dropout linear voltage regulator, commonly used in various electronic applications. Key application areas include:
1. Power Supply for Microprocessors: Provides stable voltage to microprocessors and microcontrollers.
2. Consumer Electronics: Used in devices like set-top boxes and gaming consoles for reliable voltage regulation.
3. Communication Equipment: Ensures stable voltage levels in routers and modems.
4. Industrial Controls: Used in control systems for consistent power delivery.
5. Networking Devices: Supports power needs in switches and hubs.
6. Battery-Powered Systems: Extends battery life by efficiently managing power.
These applications leverage its ability to deliver precise voltage regulation with low dropout characteristics.
1. Power Supply for Microprocessors: Provides stable voltage to microprocessors and microcontrollers.
2. Consumer Electronics: Used in devices like set-top boxes and gaming consoles for reliable voltage regulation.
3. Communication Equipment: Ensures stable voltage levels in routers and modems.
4. Industrial Controls: Used in control systems for consistent power delivery.
5. Networking Devices: Supports power needs in switches and hubs.
6. Battery-Powered Systems: Extends battery life by efficiently managing power.
These applications leverage its ability to deliver precise voltage regulation with low dropout characteristics.
Package
The NCP1117DT33G is typically available in a DPAK (TO-252) package type. This surface-mount package is designed for the voltage regulator, providing efficient thermal performance and ease of integration onto printed circuit boards.
