Overview
The NCP551SN18T1 is a fixed output low dropout linear regulator from onsemi, designed for handheld communication equipment and portable battery-powered applications. This device is part of the NCP551 series, which is known for its ultra-low quiescent current and high accuracy output voltage. The NCP551SN18T1 is specifically configured to provide a nominal output voltage of 1.8 volts.
It features a CMOS design with a PMOS power transistor, voltage reference unit, error amplifier, and protection circuits including current limit and thermal shutdown. The regulator is housed in a TSOP-5 surface mount package and is Pb-free and RoHS compliant.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Nominal Output Voltage | 1.8 | V |
| Quiescent Current (Typical) | 4.0 | μA |
| Maximum Operating Voltage | 12 | V |
| Output Current (Maximum) | 150 | mA |
| Output Voltage Temperature Coefficient | -100 | ppm/°C |
| Enable Input Threshold Voltage | 1.3 - 0.3 | V |
| Temperature Range | -40°C to 85°C | |
| Package Type | TSOP-5 (SOT23-5, SC59-5) | |
| Minimum Output Capacitor | 0.1 μF |
Key Features
- Ultra-low quiescent current of 4.0 μA typical, making it suitable for battery-powered devices.
- High accuracy output voltage with a tolerance of 2.0%.
- Low dropout voltage, ensuring stable output even with low input voltages.
- Thermal shutdown protection to prevent overheating.
- Current limit protection to prevent excessive current draw.
- Enable pin for turning the regulator on or off.
- Pb-free and RoHS compliant.
- AEC-Q100 qualified and PPAP capable for automotive and other critical applications.
Applications
- Battery-powered instruments.
- Handheld communication equipment.
- Camcorders and cameras.
- Portable electronic devices requiring low power consumption.
- Automotive and industrial applications requiring high reliability and low quiescent current.
Q & A
- What is the nominal output voltage of the NCP551SN18T1?
The nominal output voltage of the NCP551SN18T1 is 1.8 volts.
- What is the typical quiescent current of the NCP551SN18T1?
The typical quiescent current is 4.0 μA.
- What is the maximum operating voltage for the NCP551SN18T1?
The maximum operating voltage is 12 volts.
- What is the maximum output current of the NCP551SN18T1?
The maximum output current is 150 mA.
- What type of package does the NCP551SN18T1 come in?
The NCP551SN18T1 is housed in a TSOP-5 (SOT23-5, SC59-5) surface mount package.
- What is the minimum output capacitor required for the NCP551SN18T1?
The minimum output capacitor required is 0.1 μF.
- Does the NCP551SN18T1 have thermal protection?
- Is the NCP551SN18T1 suitable for automotive applications?
- What is the temperature range for the NCP551SN18T1?
The temperature range is -40°C to 85°C.
- Is the NCP551SN18T1 Pb-free and RoHS compliant?
