Overview
The NCP551SN27T1G is a fixed output low dropout linear regulator from onsemi, designed for handheld communication equipment and portable battery-powered applications. This regulator is part of the NCP551 series, which is known for its ultra-low quiescent current and high accuracy output voltage. The NCP551SN27T1G specifically provides a nominal output voltage of 2.7 volts.
It features a CMOS design with a PMOS power transistor, voltage reference unit, error amplifier, and protection circuits for current limit and thermal shutdown. The device is housed in a TSOP-5 surface mount package and is Pb-free and RoHS compliant.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TA = 25°C, Iout = 10 mA) | Vout | - | 2.7 | - | V |
| Load Regulation (Iout = 10 mA to 150 mA, Vin = Vout + 2.0 V) | Regload | - | - | 65 | mV |
| Output Current | Iout | - | - | 150 | mA |
| Dropout Voltage (Iout = 10 mA, Measured at Vout - 3.0%) | Vin-Vout | - | - | 170 | mV |
| Quiescent Current (Enable Input = 0 V) | Iq | - | 4.0 | - | μA |
| Enable Input Threshold Voltage | Vth(en) | 1.3 | - | 0.3 | V |
| Maximum Operating Voltage | Vin | - | - | 12 | V |
| Industrial Temperature Range | Ta | -40 | - | 85 | °C |
| Package Type | - | - | - | TSOP-5 | - |
Key Features
- Ultra-Low Quiescent Current: 4.0 μA typical, making it suitable for battery-powered devices.
- High Accuracy Output Voltage: ±2.0% at 25°C.
- Low Dropout Voltage: As low as 170 mV at 10 mA output current.
- Thermal Shutdown Protection: Internal thermal shutdown circuitry to prevent overheating.
- Enable Pin: Allows the regulator to be turned on or off.
- Stable Operation: Can operate with ceramic or tantalum capacitors, with a minimum output capacitor of 0.1 μF.
- Pb-Free and RoHS Compliant: Environmentally friendly packaging.
- AEC-Q100 Qualified and PPAP Capable: Suitable for automotive and other demanding applications.
Applications
- Battery Powered Instruments: Ideal for devices that require low power consumption.
- Hand-Held Instruments: Suitable for portable devices such as smartphones, tablets, and cameras.
- Camcorders and Cameras: Used in various consumer electronics requiring stable and efficient power regulation.
- Automotive Electronics: The NCV551 variant is AEC-Q100 qualified, making it suitable for automotive applications.
Q & A
- What is the nominal output voltage of the NCP551SN27T1G?
The nominal output voltage is 2.7 volts.
- What is the typical quiescent current of the NCP551SN27T1G?
The typical quiescent current is 4.0 μA.
- What is the maximum operating voltage for the NCP551SN27T1G?
The maximum operating voltage is 12 volts.
- What type of package does the NCP551SN27T1G come in?
The device is housed in a TSOP-5 surface mount package.
- Is the NCP551SN27T1G Pb-free and RoHS compliant?
Yes, it is Pb-free and RoHS compliant.
- What is the industrial temperature range for the NCP551SN27T1G?
The industrial temperature range is -40°C to 85°C.
- Does the NCP551SN27T1G have thermal shutdown protection?
Yes, it has internal thermal shutdown circuitry to prevent overheating.
- What is the minimum output capacitor required for stable operation?
The minimum output capacitor required is 0.1 μF.
- Can the NCP551SN27T1G be used in automotive applications?
The NCV551 variant is AEC-Q100 qualified and suitable for automotive applications, but the NCP551SN27T1G itself is not specifically marked for automotive use.
- How do I enable or disable the regulator?
The regulator can be turned on or off using the enable pin.
