Overview
The NCV1117STAT3G is a low dropout (LDO) positive linear voltage regulator produced by onsemi. This regulator is part of the NCP1117 series, known for its high performance and versatility. It can provide an output current in excess of 1.0 A with a maximum dropout voltage of 1.2 V at 800 mA over temperature. The device is available in both fixed and adjustable output voltage configurations, with the adjustable version programmable from 1.25 V to 18.8 V using two external resistors. On-chip trimming ensures the reference/output voltage accuracy to within ±1.0%.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Output Current | 1.0 A (up to 2.2 A for some versions) | A |
| Output Voltage (Fixed) | 1.5 V, 1.8 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, 12 V | V |
| Output Voltage (Adjustable) | 1.25 V to 18.8 V | V |
| Maximum Dropout Voltage | 1.2 V at 800 mA | V |
| Input Voltage | Up to 20 V | V |
| Package Type | SOT-223, DPAK | - |
| Line Regulation | 0.04% to 0.1% (depending on the output voltage) | % |
| Load Regulation | 0.2% to 0.4% (depending on the output voltage) | % |
| Power Supply Rejection Ratio (PSRR) | Up to 73 dB at 120 Hz | dB |
| Noise (RMS Output Noise) | Up to 360 µVrms | µVrms |
| Protection Features | Output current limiting, safe operating area compensation, thermal shutdown | - |
Key Features
- Output current in excess of 1.0 A
- Maximum dropout voltage of 1.2 V at 800 mA over temperature
- 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
- Adjustable output voltage option from 1.25 V to 18.8 V
- No minimum load requirement for fixed voltage output devices
- 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 point of regulation
- Active SCSI termination for the 2.85 V version
- Switching power supply post-regulation
- Hard drive controllers
- Battery chargers
- Automotive applications
Q & A
- What is the maximum output current of the NCV1117STAT3G?
The maximum output current is in excess of 1.0 A, with some versions capable of up to 2.2 A.
- What are the available fixed output voltages for the NCV1117 series?
The fixed output voltages available are 1.5 V, 1.8 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, and 12 V.
- How can the output voltage be adjusted in the NCV1117STAT3G?
The output voltage can be adjusted from 1.25 V to 18.8 V using two external resistors.
- What is the maximum dropout voltage of the NCV1117STAT3G?
The maximum dropout voltage is 1.2 V at 800 mA over temperature.
- What are the internal protection features of the NCV1117STAT3G?
The internal protection features include output current limiting, safe operating area compensation, and thermal shutdown.
- What is the maximum input voltage the NCV1117STAT3G can handle?
The device can operate with up to 20 V input.
- In what packages is the NCV1117STAT3G available?
The device is available in SOT-223 and DPAK packages.
- What is the power supply rejection ratio (PSRR) of the NCV1117STAT3G?
The PSRR is up to 73 dB at 120 Hz.
- Does the NCV1117STAT3G have any minimum load requirements?
No, there is no minimum load requirement for fixed voltage output devices.
- What are some common applications of the NCV1117STAT3G?
Common applications include consumer and industrial equipment point of regulation, active SCSI termination, switching power supply post-regulation, hard drive controllers, battery chargers, and automotive applications.
