Overview
The NCP551SN50T1G is a fixed output low dropout linear regulator from onsemi, designed for applications requiring low quiescent current and high efficiency. This device is part of the NCP551 series, which is optimized for handheld communication equipment and portable battery-powered devices. The NCP551SN50T1G features an ultra-low quiescent current of 4.0 μA, making it ideal for power-sensitive applications. It includes a voltage reference unit, an error amplifier, a PMOS power transistor, and protection circuits for current limit and thermal shutdown.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Output Voltage (Nominal) | 5.0 | V |
| Maximum Operating Voltage | 12 | V |
| Output Current (Maximum) | 150 | mA |
| Quiescent Current (Typical) | 4.0 | μA |
| Dropout Voltage (Typical at Iout = 10 mA) | 170 | mV |
| Output Voltage Temperature Coefficient | -100 | ppm/°C |
| Enable Input Threshold Voltage | 1.3 - 0.3 | V |
| Operating Temperature Range | -40°C to 85°C | |
| Package Type | TSOP-5 (SOT23-5, SC59-5) |
Key Features
- Ultra-low quiescent current of 4.0 μA, ideal for battery-powered devices.
- High accuracy output voltage with a tolerance of 2.0%.
- Low dropout voltage, ensuring efficient operation.
- Internal thermal shutdown protection to prevent overheating.
- Enable pin for turning the regulator on or off.
- Pb-free and RoHS compliant.
- AEC-Q100 qualified for automotive and other demanding applications.
Applications
- Battery-powered instruments.
- Handheld communication equipment.
- Camcorders and cameras.
- Portable electronic devices requiring low power consumption.
Q & A
- What is the nominal output voltage of the NCP551SN50T1G?
The nominal output voltage is 5.0 V.
- What is the maximum operating voltage for the NCP551SN50T1G?
The maximum operating voltage is 12 V.
- What is the typical quiescent current of the NCP551SN50T1G?
The typical quiescent current is 4.0 μA.
- What is the dropout voltage at an output current of 10 mA?
The dropout voltage is typically 170 mV.
- Does the NCP551SN50T1G have thermal protection?
Yes, it includes internal thermal shutdown protection.
- What is the operating temperature range for the NCP551SN50T1G?
The operating temperature range is -40°C to 85°C.
- What type of package does the NCP551SN50T1G come in?
The device is housed in a TSOP-5 (SOT23-5, SC59-5) package.
- Is the NCP551SN50T1G Pb-free and RoHS compliant?
Yes, it is Pb-free and RoHS compliant.
- What are some typical applications for the NCP551SN50T1G?
Typical applications include battery-powered instruments, handheld communication equipment, and camcorders.
- How do I enable or disable the regulator?
The regulator can be enabled or disabled using the enable pin.
