Overview
The onsemi NCV1117ST33T3G is a 3.3V, 1A low dropout voltage regulator (LDO) designed for high-performance applications. This surface-mount device is part of the NCV1117 series, known for its low dropout voltage and high output current capability. It is suitable for a wide range of consumer and industrial products, offering enhanced output voltage accuracy and temperature stability compared to older industry standards.
Key Specifications
| Attribute | Value |
|---|---|
| Input Voltage (Min) | 2.4V |
| Input Voltage (Max) | 20V |
| Output Voltage Fixed | 3.3V |
| Dropout Voltage (Max) | 1.2V |
| Output Current (Max) | 1A |
| Tolerance (%) | ±1% |
| Operating Temp Range | -40°C to +125°C |
| Regulator Topology | Fixed |
| Quiescent Current | 6mA |
| No. of Outputs | Single |
| Load Regulation | 4.3mV |
| Current Limit | 1.5A |
| Line Regulation | 0.8mV |
| Package Style | SOT-223 (TO-261-4, SC-73) |
| Mounting Method | Surface Mount |
Key Features
- Low dropout voltage of 1.2V at 800mA over temperature, ensuring efficient power regulation.
- High output current capability of up to 1A.
- Fixed output voltage of 3.3V with ±1% accuracy.
- No minimum load requirement to maintain regulation.
- Internal protection features including output current limiting, safe operating area compensation, and thermal shutdown.
- Operating temperature range from -40°C to +125°C.
- Surface mount package (SOT-223) for compact design.
Applications
The onsemi NCV1117ST33T3G is versatile and can be used in various applications, including:
- Consumer electronics such as smartphones, tablets, and other portable devices.
- Industrial control systems and automation equipment.
- Medical devices requiring stable and efficient power supply.
- Automotive systems where high reliability and temperature stability are crucial.
- General-purpose power supply circuits in embedded systems and IoT devices.
Q & A
- What is the maximum input voltage for the NCV1117ST33T3G?
The maximum input voltage is 20V. - What is the fixed output voltage of the NCV1117ST33T3G?
The fixed output voltage is 3.3V. - What is the maximum dropout voltage at 800mA?
The maximum dropout voltage at 800mA is 1.2V. - What is the maximum output current of the NCV1117ST33T3G?
The maximum output current is 1A. - Does the NCV1117ST33T3G have internal protection features?
Yes, it includes output current limiting, safe operating area compensation, and thermal shutdown protection. - What is the operating temperature range of the NCV1117ST33T3G?
The operating temperature range is from -40°C to +125°C. - What is the package style of the NCV1117ST33T3G?
The package style is SOT-223 (TO-261-4, SC-73). - Is there a minimum load requirement to maintain regulation?
No, there is no minimum load requirement for fixed voltage output devices. - What is the quiescent current of the NCV1117ST33T3G?
The quiescent current is 6mA. - Is the NCV1117ST33T3G pin compatible with older regulators like the LM317?
Yes, it is pin compatible with the LM317 and its derivative device types.
