Overview
The NCP1117DT18 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 NCP1117 series includes fixed output voltages and an adjustable output version, making it versatile for various applications. The device features internal protection mechanisms such as output current limiting, safe operating area compensation, and thermal shutdown, ensuring reliable operation.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage | Vin | 20 | V | ||
| Output Current | Iout | 1.0 A | A | ||
| Maximum Dropout Voltage at 800 mA | Vdropout | 1.2 V | V | ||
| Output Voltage (Fixed) | Vout | 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 | ||
| Output Voltage (Adjustable) | Vout | 1.25 V to 18.8 V | V | ||
| Reference Voltage Accuracy | Vref | ±1.0% | % | ||
| Quiescent Current | IQ | 4.2 to 6.0 mA | 10 mA | mA | |
| Operating Ambient Temperature Range | TA | 0 to +125°C (NCP1117), -40 to +125°C (NCP1117I, NCV1117) | °C | ||
| Thermal Shutdown | TJ | 150°C | °C |
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 Compensation, and Thermal Shutdown Protection
- Operation to 20 V Input
- NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes (AEC-Q100 Qualified and PPAP Capable)
- 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
Q & A
- What is the maximum output current of the NCP1117DT18?
The NCP1117DT18 can provide an output current in excess of 1.0 A.
- What are the fixed output voltages available in the NCP1117 series?
The fixed output voltages available 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 NCP1117DT18 be used for adjustable output voltage?
- What is the maximum dropout voltage of the NCP1117DT18 at 800 mA?
The maximum dropout voltage is 1.2 V at 800 mA over temperature.
- Does the NCP1117DT18 require a minimum load to maintain regulation?
No, the fixed voltage output devices do not require a minimum load to maintain regulation.
- What are the internal protection features of the NCP1117DT18?
The device features output current limiting, safe operating area compensation, and thermal shutdown protection.
- What is the operating ambient temperature range for the NCP1117DT18?
The operating ambient temperature range is 0 to +125°C for NCP1117 and -40 to +125°C for NCP1117I and NCV1117.
- Is the NCP1117DT18 suitable for automotive applications?
- What are the available package types for the NCP1117DT18?
The devices are available in SOT-223 and DPAK packages.
- Are the NCP1117DT18 packages Pb-free?
