Overview
The NCP785AH120T1G is a high-performance linear regulator from onsemi, designed to operate with a wide input voltage range and ultra-low quiescent current. This regulator is part of the NCP785A family and is specifically configured to provide a fixed output voltage of 12 V. It is ideal for applications requiring high input voltage tolerance, such as industrial and home metering, home appliances, and off-line power supplies.
The device features a high power supply rejection ratio (PSRR), thermal shutdown, and current limit protection, making it suitable for harsh environment applications. The SOT-89 package offers good thermal performance and helps minimize the solution size.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage (DC) | VIN | 55 | - | 450 | V |
| Output Voltage | VOUT | 11.95 | 12 | 12.05 | V |
| Output Current | IOUT | - | - | 10.5 | mA |
| Quiescent Current | IQ | 18 | 22 | - | μA |
| Power Supply Rejection Ratio (PSRR) | PSRR | 70 | - | 90 | dB |
| Thermal Shutdown Temperature | TSD | - | 145 | - | °C |
| Maximum Junction Temperature | TJ(MAX) | - | - | 150 | °C |
| Storage Temperature | TSTG | -55 | - | 150 | °C |
Key Features
- Wide Input Voltage Range: Up to 450 V DC
- Guaranteed Output Current: Up to 10 mA
- Ultra-Low Quiescent Current: Typical 10 μA (VOUT ≤ 5 V)
- High Accuracy: ±5% over full load, line, and temperature variations
- Ultra-High PSRR: 70 dB at 60 Hz, 90 dB at 100 kHz
- Stable with Ceramic Output Capacitor: 22 μF MLCC
- Thermal Shutdown and Current Limit Protection
- Available in Thermally Enhanced SOT89-3 Package
- Pb-Free Device
Applications
- Industrial Applications
- Home Appliances
- Home Metering / Network Applications
- Off-line Power Supplies
Q & A
- What is the maximum input voltage for the NCP785AH120T1G?
The maximum input voltage for the NCP785AH120T1G is up to 450 V DC.
- What is the output voltage of the NCP785AH120T1G?
The output voltage of the NCP785AH120T1G is fixed at 12 V.
- What is the quiescent current of the NCP785AH120T1G?
The quiescent current of the NCP785AH120T1G is typically 22 μA.
- What is the power supply rejection ratio (PSRR) of the NCP785AH120T1G?
The PSRR of the NCP785AH120T1G is 70 dB at 60 Hz and 90 dB at 100 kHz.
- Does the NCP785AH120T1G have thermal protection?
- What is the maximum junction temperature for the NCP785AH120T1G?
The maximum junction temperature for the NCP785AH120T1G is 150°C.
- What type of package is the NCP785AH120T1G available in?
The NCP785AH120T1G is available in a thermally enhanced SOT89-3 package.
- Is the NCP785AH120T1G a Pb-Free device?
- What are some typical applications for the NCP785AH120T1G?
Typical applications include industrial applications, home appliances, home metering/network applications, and off-line power supplies.
- What is the storage temperature range for the NCP785AH120T1G?
The storage temperature range for the NCP785AH120T1G is -55°C to 150°C.
