Overview
The NCP1117DT18RKG is a low-dropout positive voltage regulator from onsemi, part of the NCP1117 series. This regulator is designed to provide a stable output voltage with high accuracy and reliability. It is available in fixed and adjustable output voltage configurations, making it versatile for various applications. The NCP1117DT18RKG specifically provides a fixed output voltage of 1.8 V and is capable of delivering an output current in excess of 1.0 A.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Input Voltage | Up to 20 | V |
| Output Voltage | 1.8 V (Fixed) | V |
| Output Current | Exceeds 1.0 A | A |
| Maximum Dropout Voltage | 1.2 V at 800 mA | V |
| Reference/Output Voltage Accuracy | ±1.0% | % |
| Quiescent Current | Typically 4.2 mA | mA |
| Thermal Shutdown Temperature | Typically 175°C | °C |
| Operating Ambient Temperature Range | 0 to +125°C (NCP1117), -40 to +125°C (NCP1117I, NCV1117) | °C |
| Package Types | SOT-223, DPAK | - |
Key Features
- Output Current in Excess of 1.0 A
- 1.2 V Maximum Dropout Voltage at 800 mA Over Temperature
- Fixed Output Voltages with No Minimum Load Requirement
- Adjustable Output Voltage Option (in other variants of the series)
- 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 Devices
- 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 2.85 V Version
- Switching Power Supply Post Regulation
- Hard Drive Controllers
- Battery Chargers
Q & A
- What is the maximum output current of the NCP1117DT18RKG?
The NCP1117DT18RKG can deliver an output current in excess of 1.0 A.
- What is the fixed output voltage of the NCP1117DT18RKG?
The fixed output voltage of the NCP1117DT18RKG is 1.8 V.
- What is the maximum dropout voltage of the NCP1117 series?
The maximum dropout voltage is 1.2 V at 800 mA over temperature.
- Does the NCP1117DT18RKG require a minimum load to maintain regulation?
No, the fixed voltage output devices of the NCP1117 series do not require a minimum load to maintain regulation.
- What are the internal protection features of the NCP1117 series?
The internal protection features include output current limiting, safe operating area compensation, and thermal shutdown.
- What are the package types available for the NCP1117 series?
The devices are available in SOT-223 and DPAK packages.
- What is the operating ambient temperature range for the NCP1117 and NCP1117I/NCV1117?
The operating ambient temperature range is 0 to +125°C for NCP1117 and -40 to +125°C for NCP1117I and NCV1117.
- Is the NCP1117 series AEC-Q100 qualified?
- What is the thermal shutdown temperature of the NCP1117 series?
The thermal shutdown temperature is typically 175°C.
- How do I calculate the maximum device power dissipation?
The maximum device power dissipation can be calculated using the formula: PD = (TJ(max) - TA) / RJA.
