Overview
The NCP1117DT12RKG is a low-dropout positive voltage regulator from onsemi, part of the NCP1117 series. This regulator is capable of providing an output current in excess of 1.0 A with a maximum dropout voltage of 1.2 V at 800 mA over temperature. It is available in fixed and adjustable output voltage configurations, making it versatile for various applications. The device features internal protection mechanisms such as output current limiting, safe operating area compensation, and thermal shutdown protection, ensuring reliable operation under different conditions.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Output Current | 1.0 A | A |
| Maximum Dropout Voltage | 1.2 V at 800 mA | V |
| Fixed Output Voltages | 1.5 V, 1.8 V, 1.9 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, 12 V | V |
| Adjustable Output Voltage Range | 1.25 V to 18.8 V | V |
| Reference/Output Voltage Accuracy | ±1.0% | % |
| Input Voltage Range | Up to 20 V | V |
| Operating Ambient Temperature Range | 0 to +125°C (NCP1117), -40 to +125°C (NCP1117I, NCV1117) | °C |
| Package Types | SOT-223, DPAK | |
| Thermal Shutdown Temperature | Approximately 175°C | °C |
Key Features
- Output current in excess of 1.0 A
- Low dropout voltage of 1.2 V at 800 mA
- Fixed output voltages with no minimum load requirement
- Adjustable output voltage option from 1.25 V to 18.8 V
- Internal protection features: output current limiting, safe operating area compensation, and thermal shutdown
- Operation up to 20 V input
- Pb-Free devices
- AEC-Q100 qualified and PPAP capable for automotive and other critical applications
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
Q & A
- What is the maximum output current of the NCP1117DT12RKG? The maximum output current is 1.0 A.
- What is the maximum dropout voltage of the NCP1117DT12RKG? The maximum dropout voltage is 1.2 V at 800 mA.
- What are the fixed output voltages available for the NCP1117 series? The fixed output voltages are 1.5 V, 1.8 V, 1.9 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, and 12 V.
- Can the output voltage of the NCP1117DT12RKG be adjusted? Yes, the adjustable version can be programmed from 1.25 V to 18.8 V using two external resistors.
- What are the internal protection features of the NCP1117DT12RKG? The device features output current limiting, safe operating area compensation, and thermal shutdown protection.
- What is the input voltage range for the NCP1117DT12RKG? The input voltage range is up to 20 V.
- What are the operating temperature ranges for the NCP1117 series? The operating ambient temperature ranges are 0 to +125°C for NCP1117 and -40 to +125°C for NCP1117I and NCV1117.
- What packages are available for the NCP1117 series? The devices are available in SOT-223 and DPAK packages.
- Is the NCP1117DT12RKG suitable for automotive applications? Yes, the NCV prefix versions are AEC-Q100 qualified and PPAP capable, making them suitable for automotive and other critical applications.
- What is the thermal shutdown temperature of the NCP1117DT12RKG? The thermal shutdown temperature is approximately 175°C.
