Overview
The NCP3064BDR2G is a monolithic power switching regulator produced by onsemi. It is an upgraded version of the popular MC33063A and MC34063A DC-DC converters, designed for high-frequency applications. This device is optimized for step-down, step-up, and voltage-inverting converter applications, requiring a minimal number of external components. The NCP3064BDR2G features an internal temperature-compensated reference, comparator, controlled duty cycle oscillator, active current limit circuit, driver, and a high current output switch.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Input Voltage Range | VCC | 3.0 to 40 | V |
| Output Switch Peak Current | ISW | 1.5 | A |
| Oscillator Frequency | fOSC | 110 to 190 | kHz |
| Current Limit Sense Voltage | VIPK | 165 to 235 | mV |
| Darlington Switch Collector to Emitter Voltage Drop | VSWCE | 1.0 to 1.3 | V |
| Threshold Voltage | VTH | 1.25 | V |
| Maximum Junction Temperature | TJ MAX | 150 | °C |
| Thermal Resistance Junction-to-Air (SOIC-8) | RθJA | 180 | °C/W |
| Thermal Resistance Junction-to-Air (DFN-8) | RθJA | 78 | °C/W |
Key Features
- Input Voltage Range from 3.0 V to 40 V
- Logic Level Shutdown Capability
- Low Power Standby Mode, Typical 100 μA
- Output Switch Current to 1.5 A
- Adjustable Output Voltage Range
- 150 kHz Frequency Operation
- Precision 1.5% Reference
- Internal Thermal Shutdown Protection
- Cycle-by-Cycle Current Limiting
- Pb-Free Devices
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements
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 input voltage range of the NCP3064BDR2G?
The input voltage range is from 3.0 V to 40 V.
- What is the maximum output switch current of the NCP3064BDR2G?
The maximum output switch current is 1.5 A.
- What is the typical oscillator frequency of the NCP3064BDR2G?
The typical oscillator frequency is around 150 kHz.
- Does the NCP3064BDR2G have thermal shutdown protection?
- What is the purpose of the ON/OFF pin on the NCP3064BDR2G?
The ON/OFF pin allows for logic level shutdown capability and low power standby mode.
- Can the NCP3064BDR2G be used in automotive applications?
- How does the pulse feedback approach affect the oscillator frequency?
The pulse feedback approach can increase the operating frequency by up to 50% and results in more regular switching waveforms with lower ripple voltage and improved efficiency.
- What is the maximum junction temperature for the NCP3064BDR2G?
The maximum junction temperature is 150°C.
- Is the NCP3064BDR2G Pb-free?
- What are the typical applications of the NCP3064BDR2G?
Typical applications include step-down, step-up, and voltage-inverting supply applications, high power LED lighting, and battery chargers.
