Overview
The NCP1117DTAG is a low-dropout positive voltage regulator from onsemi, designed to provide high current output with minimal voltage drop. This regulator is part of the NCP1117 series, which includes fixed and adjustable output voltage options. The NCP1117DTAG is specifically configured for a fixed output voltage and is capable of delivering an output current in excess of 1.0 A. It features a maximum dropout voltage of 1.2 V at 800 mA over temperature, ensuring efficient voltage regulation across a range of operating conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage | 20 | V |
| Output Current | 1.0 | A |
| Maximum Dropout Voltage | 1.2 | V (at 800 mA) |
| Fixed Output Voltages | 1.5, 1.8, 1.9, 2.0, 2.5, 2.85, 3.3, 5.0, 12 | V |
| Adjustable Output Voltage Range | 1.25 to 18.8 | V |
| Output Voltage Accuracy | ±1.0% | |
| Quiescent Current | Up to 10 | mA |
| Thermal Shutdown Temperature | Approximately 175 | °C |
| Operating Ambient Temperature Range | 0 to +125 (NCP1117), -40 to +125 (NCP1117I, NCV1117) | °C |
| Package Types | SOT-223, DPAK |
Key Features
- High output current capability in excess of 1.0 A
- Low dropout voltage of 1.2 V at 800 mA over temperature
- No minimum load requirement for fixed voltage output devices
- Internal protection features including output current limiting, safe operating area compensation, and thermal shutdown
- High accuracy with reference/output voltage trimmed to ±1.0%
- Adjustable output voltage option programmable with two external resistors
- ESD protection exceeding Human Body Model (HBM), Machine Model (MM), and Charge Device Model (CDM) tests
Applications
- Power supplies for various electronic devices requiring stable and high current output
- Active SCSI bus terminators
- Point-of-load regulators in larger systems
- Battery-powered devices requiring efficient voltage regulation
- Industrial and automotive systems where reliable voltage regulation is crucial
Q & A
- What is the maximum output current of the NCP1117DTAG?
The NCP1117DTAG can provide an output current in excess of 1.0 A.
- What is the maximum dropout voltage of the NCP1117DTAG?
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 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 output voltage of the NCP1117DTAG be adjusted?
Yes, the NCP1117 series includes an adjustable output version that can be programmed from 1.25 V to 18.8 V using two external resistors.
- What are the internal protection features of the NCP1117DTAG?
The internal protection features include output current limiting, safe operating area compensation, and thermal shutdown.
- What is the operating ambient temperature range for the NCP1117DTAG?
The operating ambient temperature range is 0 to +125°C for the NCP1117 and -40 to +125°C for the NCP1117I and NCV1117.
- What package types are available for the NCP1117DTAG?
The NCP1117DTAG is available in SOT-223 and DPAK packages.
- Does the NCP1117DTAG 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 thermal shutdown temperature of the NCP1117DTAG?
The thermal shutdown temperature is approximately 175°C.
- Does the NCP1117DTAG have ESD protection?
Yes, the NCP1117DTAG exceeds the Human Body Model (HBM), Machine Model (MM), and Charge Device Model (CDM) tests for ESD protection.
