Overview
The LM2574HVMX-5.0/NOPB is a step-down (buck) switching regulator produced by Texas Instruments. This component is designed to provide a fixed 5.0V output voltage, making it ideal for a wide range of applications requiring efficient power conversion. The LM2574HVMX-5.0/NOPB is part of the LM2574 series, known for its simplicity, reliability, and high efficiency. It is particularly suitable for applications in industrial, automotive, and consumer electronics where space and power efficiency are critical.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 4.75 to 40 | V | |
| Output Voltage | 5.0 | V | Fixed |
| Output Current | 0.5 | A | |
| Switching Frequency | 52 | kHz | |
| Efficiency | Up to 88 | % | |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | TO-263-5 | D2PAK |
Key Features
- Fixed 5.0V output voltage for simplified design.
- Wide input voltage range from 4.75V to 40V, suitable for various applications.
- High efficiency up to 88%, reducing power loss and heat generation.
- Integrated frequency compensation and fixed-frequency oscillator for stable operation.
- Thermal shutdown and current limit protection for enhanced reliability.
Applications
The LM2574HVMX-5.0/NOPB is widely used in applications requiring efficient step-down voltage regulation. Common application areas include:
- Industrial Automation: Power supply for control systems and sensors.
- Automotive Electronics: Voltage regulation for infotainment systems and onboard controllers.
- Consumer Electronics: Power management in portable devices and home appliances.
- Telecommunications: Power conversion in networking equipment and communication devices.
Q & A
1. What is the maximum input voltage for the LM2574HVMX-5.0/NOPB?
The maximum input voltage is 40V.
2. What is the output current capability of this regulator?
The output current is up to 0.5A.
3. Is the output voltage adjustable?
No, the output voltage is fixed at 5.0V.
4. What is the typical efficiency of this regulator?
The efficiency can reach up to 88% under optimal conditions.
5. Does the LM2574HVMX-5.0/NOPB have built-in protection features?
Yes, it includes thermal shutdown and current limit protection.
6. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
7. What package does this regulator come in?
It is available in a TO-263-5 (D2PAK) package.
8. Can this regulator be used in automotive applications?
Yes, it is suitable for automotive electronics.
9. What is the switching frequency of the LM2574HVMX-5.0/NOPB?
The switching frequency is 52 kHz.
10. Is external frequency compensation required?
No, the regulator includes integrated frequency compensation.
