Overview
The NCP1117DT18T5 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. The device is available in fixed and adjustable output voltage configurations, making it versatile for various applications. The NCP1117DT18T5 features high output voltage accuracy, internal protection mechanisms, and operates with input voltages up to 20 V. It is packaged in SOT-223 and DPAK formats, ensuring compatibility with a range of design requirements.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage | Vin | - | - | 20 | V |
| Output Current | Iout | - | - | 1000 | mA |
| Dropout Voltage (at 800 mA) | Vin-Vout | - | - | 1.2 | V |
| Output Voltage (Fixed) | Vout | 1.8 | - | - | V |
| Reference Voltage (Adjustable) | Vref | 1.238 | 1.25 | 1.262 | V |
| Temperature Range | Tj | -40 | - | 125 | °C |
| Quiescent Current | Iq | - | - | 10 | mA |
| Ripple Rejection (at 120 Hz) | RR | - | - | 66 | dB |
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 with Two External Resistors
- No Minimum Load Requirement for Fixed Voltage Output Devices
- Reference/Output Voltage Trimmed to ±1.0% Accuracy
- Current Limit, Safe Operating Area Compensation, and Thermal Shutdown Protection
- Operation to 20 V Input
- AEC-Q100 Qualified and PPAP Capable for Automotive and Other Applications
- Pb-Free Devices
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 NCP1117DT18T5?
The NCP1117DT18T5 can provide an output current in excess of 1.0 A.
- What is the maximum dropout voltage of the NCP1117DT18T5?
The maximum dropout voltage is 1.2 V at 800 mA over temperature.
- What are the available fixed output voltages 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 NCP1117DT18T5 be adjusted?
- What is the input voltage range for the NCP1117DT18T5?
The device can operate with input voltages up to 20 V.
- Does the NCP1117DT18T5 have any internal protection features?
- What are the package options for the NCP1117DT18T5?
The device is available in SOT-223 and DPAK packages.
- Is the NCP1117DT18T5 suitable for automotive applications?
- What is the temperature range for the NCP1117DT18T5?
The operating temperature range is from -40°C to 125°C.
- Does the NCP1117DT18T5 have any minimum load requirement?
No, there is no minimum load requirement for fixed voltage output devices.
