Overview
The NCP1117ST33T3G is a low-dropout (LDO) positive linear voltage regulator from onsemi. This device is part of the NCP1117 series, which is known for its high current capability and low dropout voltage. The NCP1117ST33T3G specifically provides a fixed output voltage of 3.3 V and can supply an output current in excess of 1.0 A. It features a maximum dropout voltage of 1.2 V at 800 mA over temperature, making it suitable for a wide range of applications. The device includes internal protection features such as output current limiting, safe operating area compensation, and thermal shutdown, ensuring reliable operation. It is available in the SOT-223 package and can operate with input voltages up to 20 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.3 | V |
| Output Current | 1.0 | A |
| Maximum Dropout Voltage at 800 mA | 1.2 | V |
| Input Voltage Range | 2.4 to 20 | V |
| Quiescent Current | 6 | mA |
| Adjustment Pin Current | 52 to 120 | μA |
| Temperature Stability | ±0.5% | |
| Thermal Shutdown Temperature | −55 to 150 | °C |
| Package Type | SOT-223 |
Key Features
- Output Current in Excess of 1.0 A
- 1.2 V Maximum Dropout Voltage at 800 mA Over Temperature
- Fixed Output Voltage of 3.3 V with No Minimum Load Requirement
- Reference/Output Voltage Trimmed to ±1.0% Accuracy
- Internal Protection Features: Output Current Limiting, Safe Operating Area Compensation, and Thermal Shutdown
- Operation Up to 20 V Input
- Pb-Free Packages Available
Applications
- Consumer and Industrial Equipment
- Active SCSI Termination
- Switching Power Supply Post Regulation
- Hard Drive Controllers
- Battery Chargers
- Automotive Applications
- Direct Replacement for LM1117
Q & A
- What is the maximum output current of the NCP1117ST33T3G?
The NCP1117ST33T3G can provide an output current in excess of 1.0 A. - What is the maximum dropout voltage at 800 mA?
The maximum dropout voltage at 800 mA is 1.2 V. - What are the available output voltages in the NCP1117 series?
The NCP1117 series includes fixed output voltages of 1.5 V, 1.8 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, and 12 V, as well as an adjustable output version. - What is the input voltage range for the NCP1117ST33T3G?
The input voltage range is from 2.4 V to 20 V. - Does the NCP1117ST33T3G have internal protection features?
Yes, it includes output current limiting, safe operating area compensation, and thermal shutdown protection. - What package type is the NCP1117ST33T3G available in?
The device is available in the SOT-223 package. - Is the NCP1117ST33T3G Pb-free?
Yes, Pb-free packages are available. - What are some common applications for the NCP1117ST33T3G?
Common applications include consumer and industrial equipment, active SCSI termination, switching power supply post regulation, hard drive controllers, battery chargers, and automotive applications. - Can the NCP1117ST33T3G replace the LM1117?
Yes, the NCP1117 series is pin compatible with the LM1117 and its derivative devices. - What is the thermal shutdown temperature range for the NCP1117ST33T3G?
The thermal shutdown temperature range is from −55 to 150 °C.
