Overview
The NCP551SN31T1G is a fixed output low dropout linear regulator (LDO) produced by onsemi. This device is part of the NCP551 series, designed for handheld communication equipment and portable battery-powered applications that require low quiescent current. The NCP551SN31T1G is housed in a TSOP-5 surface mount package and is available in a variety of output voltages, with this specific model providing a nominal output voltage of 3.1 volts.
The regulator features an ultra-low quiescent current of 4.0 µA, making it highly efficient for power-sensitive applications. It includes a voltage reference unit, an error amplifier, a PMOS power transistor, and protection circuits for current limit and temperature limit.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Nominal Output Voltage | 3.1 | V |
| Maximum Operating Voltage | 12 | V |
| Output Current (Iout) | 150 | mA |
| Quiescent Current (IQ) | 4.0 | µA |
| Dropout Voltage (Vin - Vout) | 170 | mV |
| Load Regulation | 65 | 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, making it suitable for battery-powered devices.
- High accuracy output voltage with a tolerance of 2.0%.
- Low dropout voltage, ensuring efficient voltage regulation.
- Thermal shutdown protection to prevent overheating.
- Current limit and temperature limit protection circuits.
- Enable pin for turning the regulator on or off.
- Pb-free and RoHS compliant.
- AEC-Q100 qualified and PPAP capable 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 NCP551SN31T1G?
The nominal output voltage of the NCP551SN31T1G is 3.1 volts.
- What is the maximum operating voltage for the NCP551SN31T1G?
The maximum operating voltage for the NCP551SN31T1G is 12 volts.
- What is the quiescent current of the NCP551SN31T1G?
The quiescent current of the NCP551SN31T1G is 4.0 µA.
- What is the dropout voltage for the NCP551SN31T1G?
The dropout voltage for the NCP551SN31T1G is approximately 170 mV.
- What is the operating temperature range for the NCP551SN31T1G?
The operating temperature range for the NCP551SN31T1G is -40°C to 85°C.
- What type of package does the NCP551SN31T1G come in?
The NCP551SN31T1G comes in a TSOP-5 (SOT23-5, SC59-5) surface mount package.
- Is the NCP551SN31T1G Pb-free and RoHS compliant?
Yes, the NCP551SN31T1G is Pb-free and RoHS compliant.
- What are some typical applications for the NCP551SN31T1G?
Typical applications include battery-powered instruments, handheld communication equipment, camcorders, and cameras.
- Does the NCP551SN31T1G have thermal protection?
Yes, the NCP551SN31T1G includes thermal shutdown protection to prevent overheating.
- Can the NCP551SN31T1G be used in automotive applications?
Yes, the NCP551SN31T1G is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other demanding applications.
