Overview
The NCP3063DR2G is a monolithic power switching regulator produced by onsemi, designed for DC-DC converter applications. It is an upgrade to the popular MC34063A and MC33063A monolithic DC-DC converters, offering higher frequency operation and enhanced features. This device is optimized for step-up, step-down, and voltage-inverting converters, requiring a minimum number of external components. It is suitable for various applications, including cost-sensitive consumer products and industrial equipment.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 0 to +40 | V |
| Output Switch Current | Up to 1.5 | A |
| Oscillator Frequency | 110 to 190 | kHz |
| Reference Voltage Accuracy | ±1.5% (NCP3063), ±2% (NCP3063B, NCV3063) | % |
| Darlington Switch Collector to Emitter Voltage Drop | 1.0 to 1.3 | V |
| Thermal Shutdown Threshold | 160°C | °C |
| Operating Junction Temperature Range | 0 to +70°C (NCP3063), -40 to +125°C (NCP3063B, NCV3063) | °C |
| Package Types | SOIC-8, DFN-8 |
Key Features
- Operation up to 40 V input voltage
- Low standby current
- Output switch current up to 1.5 A
- Output voltage adjustable
- Frequency operation of 150 kHz
- Precision 1.5% reference voltage
- Internal thermal shutdown with hysteresis
- Cycle-by-cycle current limiting
- Pb-free packages available
Applications
- Step-down, step-up, and voltage-inverting supply applications
- High power LED lighting
- Battery chargers
- Cost-sensitive consumer products
- Industrial equipment
Q & A
- What is the maximum input voltage for the NCP3063DR2G?
The maximum input voltage is 40 V. - What is the typical oscillator frequency of the NCP3063DR2G?
The typical oscillator frequency is 150 kHz. - What is the maximum output switch current of the NCP3063DR2G?
The maximum output switch current is 1.5 A. - Does the NCP3063DR2G have thermal shutdown protection?
Yes, it has internal thermal shutdown with hysteresis. - What are the package types available for the NCP3063DR2G?
The package types available are SOIC-8 and DFN-8. - What is the precision of the reference voltage for the NCP3063?
The reference voltage accuracy is ±1.5% for the NCP3063. - Can the NCP3063DR2G be used in automotive applications?
Yes, the NCV prefix version is suitable for automotive and other applications requiring site and change control. - How is the oscillator frequency programmed in the NCP3063DR2G?
The oscillator frequency is programmed by the value selected for the timing capacitor CT. - What is the purpose of the exposed pad in the DFN-8 package?
The exposed pad must be connected to GND to enhance the power dissipation capabilities of the device. - Are there any additional components recommended for high power applications?
Yes, external transistors can be used to increase output current and improve efficiency in high power applications.
