Overview
The NCV3020ADR2G, produced by onsemi, is a synchronous buck controller designed for high-efficiency voltage regulation. This device operates within a wide input voltage range of 4.7 V to 28 V and can produce output voltages as low as 0.6 V. It is part of the NCP3020 family, which includes variants such as NCP3020A, NCP3020B, NCV3020A, and NCV3020B. The NCV prefix indicates that this device is suitable for automotive and other applications requiring site and change controls.
The NCV3020ADR2G integrates several key features, including internal gate drivers, an internally set oscillator frequency (300 kHz for NCP3020A and 600 kHz for NCP3020B), and various protection mechanisms such as input undervoltage lockout, output overvoltage and undervoltage protection, and thermal shutdown.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 4.7 | - | 28 | V |
| Oscillator Frequency (NCP3020A) | 240 | 300 | 360 | kHz |
| Oscillator Frequency (NCP3020B) | 530 | 600 | 670 | kHz |
| Internal Reference Voltage | 0.591 | 0.6 | 0.609 | V |
| Soft-Start Ramp Time (NCP3020A) | - | - | 6.8 | ms |
| Soft-Start Ramp Time (NCP3020B) | - | - | 4.4 | ms |
| UVLO Rising Threshold | 4.0 | 4.3 | 4.7 | V |
| UVLO Falling Threshold | 3.5 | 3.9 | 4.3 | V |
| Operating Junction Temperature Range | -40 | - | 140 | °C |
Key Features
- Input Voltage Range from 4.7 V to 28 V
- Internally set oscillator frequency: 300 kHz (NCP3020A) or 600 kHz (NCP3020B)
- 0.6 V Internal Reference Voltage
- Internally programmed soft-start: 6.8 ms (NCP3020A) or 4.4 ms (NCP3020B)
- Current Limit and Short Circuit Protection
- Transconductance Amplifier with External Compensation
- Input Undervoltage Lockout (UVLO)
- Output Overvoltage (OOV) and Undervoltage (OUV) Detection
- Thermal Shutdown (TSD)
- Pb-Free Device
Applications
The NCV3020ADR2G is suitable for a variety of applications, including:
- Automotive systems requiring high reliability and robustness
- Industrial power supplies needing wide input voltage ranges
- Telecommunication equipment requiring efficient voltage regulation
- Consumer electronics demanding high efficiency and compact design
Q & A
- What is the input voltage range of the NCV3020ADR2G?
The input voltage range is from 4.7 V to 28 V.
- What are the oscillator frequencies for NCP3020A and NCP3020B?
The oscillator frequency for NCP3020A is 300 kHz, and for NCP3020B, it is 600 kHz.
- What is the internal reference voltage of the NCV3020ADR2G?
The internal reference voltage is 0.6 V.
- What are the soft-start times for NCP3020A and NCP3020B?
The soft-start time for NCP3020A is 6.8 ms, and for NCP3020B, it is 4.4 ms.
- What protection features does the NCV3020ADR2G include?
The device includes input undervoltage lockout, output overvoltage and undervoltage protection, short circuit protection, and thermal shutdown.
- What is the operating junction temperature range of the NCV3020ADR2G?
The operating junction temperature range is from -40°C to 140°C.
- Is the NCV3020ADR2G a Pb-Free device?
- What package type is the NCV3020ADR2G available in?
The device is available in a SOIC-8 package.
- What are some typical applications for the NCV3020ADR2G?
Typical applications include automotive systems, industrial power supplies, telecommunication equipment, and consumer electronics.
- How does the NCV3020ADR2G sense inductor current?
The device senses inductor current using the voltage drop across the high side MOSFET during its on time.
