Overview
The NCP1117DT33RK is a low dropout (LDO) positive linear 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. The NCP1117 series includes fixed output voltages ranging from 1.5 V to 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. These regulators are designed for high accuracy, with the reference/output voltage trimmed to within ±1.0%.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage (Min) | 2.4 V |
| Input Voltage (Max) | 20 V |
| Output Voltage (Fixed) | 3.3 V |
| Dropout Voltage (Max) | 1.2 V at 800 mA |
| Output Current (Max) | 1 A |
| Tolerance | ±1% |
| Operating Temperature Range | 0°C to 125°C |
| Regulator Topology | Fixed |
| Quiescent Current | 6 mA |
| No. of Outputs | Single |
| Load Regulation | 4.3 mV |
| Current Limit | 1.5 A |
| Line Regulation | 0.8 mV |
| Package Style | TO-252-3 (DPAK) |
| Mounting Method | Surface Mount |
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, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, and 12 V
- Adjustable Output Voltage Option (programmable from 1.25 V to 18.8 V with two external resistors)
- No Minimum Load Requirement for Fixed Voltage Output Devices
- Reference/Output Voltage Trimmed to ±1.0%
- Current Limit, Safe Operating Area Compensation, and Thermal Shutdown Protection
- Operation to 20 V Input
- Pb-Free Packages Available
Applications
- Consumer and Industrial Equipment Point of Regulation
- Active SCSI Termination for 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 NCP1117DT33RK?
The maximum output current is 1 A.
- What is the dropout voltage at 800 mA for the NCP1117DT33RK?
The dropout voltage is 1.2 V at 800 mA.
- What are the available fixed output voltages in the NCP1117 series?
The fixed output voltages 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.
- Can the output voltage of the NCP1117DT33RK be adjusted?
No, the NCP1117DT33RK has a fixed output voltage of 3.3 V. However, the NCP1117 series includes an adjustable output version.
- What is the operating temperature range of the NCP1117DT33RK?
The operating temperature range is 0°C to 125°C.
- Does the NCP1117DT33RK have any internal protection features?
- What is the package style of the NCP1117DT33RK?
The package style is TO-252-3 (DPAK).
- Is the NCP1117DT33RK Pb-free?
- What are some common applications of the NCP1117DT33RK?
- What is the quiescent current of the NCP1117DT33RK?
