Overview
The NCV1117DTARKG is part of the NCP1117 series, which are low dropout (LDO) positive linear voltage regulators. These regulators are 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. The 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 that can be programmed from 1.25 V to 18.8 V using two external resistors. The devices feature on-chip trimming that adjusts the reference/output voltage to within ±1.0% accuracy and include internal protection features such as output current limiting, safe operating area compensation, and thermal shutdown. The NCV1117DTARKG operates with up to 20 V input and is available in DPAK packages.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Current | - | - | 1.0 A | A |
| Maximum Dropout Voltage at 800 mA | - | 1.2 V | - | 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 | - | 18.8 V | V |
| Input Voltage Range | - | - | 20 V | V |
| Operating Ambient Temperature Range | -40°C | - | 125°C | °C |
| Package Type | - | - | DPAK | - |
| Ripple Rejection (120 Hz, 10 Vpp) | 50 dB | - | 73 dB | dB |
| Adjustment Pin Current | - | 52 μA | 120 μA | μA |
Key Features
- Output current in excess of 1.0 A
- 1.2 V maximum dropout voltage at 800 mA over temperature
- Fixed output voltages of 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
- 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
- Current limit, safe operating area, and thermal shutdown protection
- Operation up to 20 V input
- Pb-free packages available
- AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements
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 NCV1117DTARKG?
The maximum output current is 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 fixed output voltages?
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.
- What is the range of the adjustable output voltage?
The adjustable output voltage can be programmed from 1.25 V to 18.8 V.
- Do the fixed voltage output devices require a minimum load to maintain regulation?
No, the fixed voltage output devices do not require a minimum load to maintain regulation.
- What is the accuracy of the reference/output voltage?
The reference/output voltage is trimmed to within ±1.0% accuracy.
- What internal protection features are included?
The internal protection features include output current limiting, safe operating area compensation, and thermal shutdown.
- What is the maximum input voltage?
The maximum input voltage is 20 V.
- In what package is the NCV1117DTARKG available?
The NCV1117DTARKG is available in a DPAK package.
- Is the NCV1117DTARKG suitable for automotive applications?
