Overview
The NCP3063MNTXG, produced by onsemi, is a monolithic power switching regulator designed for DC-DC converter applications. It is an upgraded version of 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 minimal number of external components.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage | VCC | 0 | - | 40 | V |
| Oscillator Frequency | fOSC | 110 | 150 | 190 | kHz |
| Output Switch Current | ISW | - | - | 1.5 | A |
| Current Limit Sense Voltage | VIPK(Sense) | 165 | 200 | 235 | mV |
| Comparator Threshold Voltage | VTH | 1.250 - 1.5% | - | - | V |
| Thermal Shutdown Threshold | - | - | 160 | °C | |
| Maximum Junction Temperature | TJ MAX | - | - | 150 | °C |
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
- Darlington output switch configuration for high switching speed and low voltage drop
Applications
The NCP3063MNTXG is suitable for various DC-DC converter applications, including step-up, step-down, and voltage-inverting configurations. It is particularly useful in cost-sensitive consumer products and industrial equipment. The device can be used in boost, buck, and inverting converter topologies with minimal external components.
Typical applications include:
- Boost converters with NMOS transistors
- Buck converters with PMOS transistors or low VCE(sat) PNP transistors
- Voltage-inverting converters
Q & A
- What is the maximum input voltage for the NCP3063MNTXG?
The maximum input voltage is 40 V.
- What is the typical oscillator frequency of the NCP3063MNTXG?
The typical oscillator frequency is 150 kHz.
- What is the maximum output switch current of the NCP3063MNTXG?
The maximum output switch current is 1.5 A.
- Does the NCP3063MNTXG have thermal shutdown protection?
- What is the comparator threshold voltage of the NCP3063MNTXG?
The comparator threshold voltage is 1.250 V with a tolerance of ±1.5%.
- How is the oscillator frequency programmed in the NCP3063MNTXG?
The oscillator frequency is programmed by the value selected for the timing capacitor CT.
- What are the typical applications of the NCP3063MNTXG?
Typical applications include boost, buck, and voltage-inverting converters in consumer and industrial products.
- Does the NCP3063MNTXG have ESD protection?
- What is the maximum junction temperature of the NCP3063MNTXG?
The maximum junction temperature is 150°C.
- How does the Darlington output switch configuration benefit the NCP3063MNTXG?
The Darlington configuration allows for high switching speed and low voltage drop, enhancing overall performance.
