Overview
The NCP511SN15T1G 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 NCP511 series, which is known for its ultra-low quiescent current and high efficiency. The NCP511SN15T1G is specifically configured to provide a fixed output voltage of 1.5 V, making it suitable for a variety of low-power electronic devices.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TA = 25°C, Iout = 1.0 mA) | Vout | 1.455 | 1.5 | 1.545 | V |
| Output Voltage (TA = −40°C to 85°C, Iout = 1.0 mA) | Vout | 1.455 | 1.5 | 1.545 | V |
| Line Regulation (Iout = 10 mA) | Regline | - | - | 1.0 | mV/V |
| Load Regulation (Iout = 1.0 mA to 150 mA) | Regload | - | 0.3 | 0.8 | mV/mA |
| Output Current | Iout(nom.) | - | - | 150 | mA |
| Dropout Voltage (Iout = 100 mA, Measured at Vout −3.0%) | Vin−Vout | 245 | - | 350 | mV |
| Quiescent Current (Enable Input = 0 V) | IQ | - | 40 | 100 | μA |
| Enable Input Threshold Voltage | Vth(en) | 1.3 | - | 0.3 | V |
| Output Short Circuit Current | Iout(max) | - | - | 200 | mA |
| Ripple Rejection (f = 1.0 kHz, Io = 60 mA) | RR | - | - | 50 | dB |
| Output Noise Voltage (f = 20 Hz to 100 kHz, Iout = 60 mA) | Vn | - | - | 110 | μVRMS |
Key Features
- Ultra-Low Quiescent Current: Typical quiescent current of 40 μA, making it ideal for battery-powered devices.
- Low Dropout Voltage: Dropout voltage of 100 mV at 100 mA, ensuring efficient voltage regulation.
- Excellent Line and Load Regulation: High accuracy output voltage with minimal variation under different input and load conditions.
- High Accuracy Output Voltage: Output voltage accuracy of ±2.0% over the operating temperature range.
- Industrial Temperature Range: Operates over a temperature range of −40°C to 85°C.
- Thermal Shutdown Protection: Internal thermal shutdown circuitry to prevent overheating.
- Enable Pin: Allows the regulator to be turned on or off, with a threshold voltage of 1.3 V.
- Compact Package: Housed in a micro-miniature TSOP-5 surface mount package.
Applications
- Cellular Phones: Ideal for power management in mobile phones due to its low quiescent current and high efficiency.
- Battery Powered Instruments: Suitable for various battery-powered devices requiring stable and efficient voltage regulation.
- Hand-Held Instruments: Used in portable electronic devices such as handheld instruments and gadgets.
- Camcorders and Cameras: Applicable in power management for camcorders and cameras.
Q & A
- What is the typical quiescent current of the NCP511SN15T1G?
The typical quiescent current is 40 μA.
- What is the dropout voltage at 100 mA for the NCP511SN15T1G?
The dropout voltage at 100 mA is 245 mV.
- What is the maximum output current of the NCP511SN15T1G?
The maximum output current is 150 mA.
- What is the operating temperature range of the NCP511SN15T1G?
The operating temperature range is −40°C to 85°C.
- Does the NCP511SN15T1G have thermal shutdown protection?
Yes, it has internal thermal shutdown circuitry to prevent overheating.
- What is the package type of the NCP511SN15T1G?
The device is housed in a micro-miniature TSOP-5 surface mount package.
- How does the enable pin function on the NCP511SN15T1G?
The enable pin turns the regulator on or off, with a threshold voltage of 1.3 V.
- What is the recommended minimum output capacitor value for the NCP511SN15T1G?
The minimum recommended output capacitor value is 1.0 μF.
- Can the NCP511SN15T1G be used with input voltages greater than 6.0 V?
No, the device is not rated for input voltages greater than 6.0 V. However, a pre-regulator circuit can be used to regulate the input voltage.
- What are some typical applications for the NCP511SN15T1G?
Typical applications include cellular phones, battery-powered instruments, hand-held instruments, and camcorders and cameras.
