LM2574N-12G: High-Efficiency DC-DC Switching Regulator IC by onsemi
LM2574N-12G: The Ultimate DC-DC Switching Regulator Solution by onsemi
The LM2574N-12G from onsemi stands as a pinnacle of efficiency in voltage regulation technology. As a member of the PMIC - Voltage Regulators - DC DC Switching Regulators family, this IC delivers exceptional performance with its multi-configuration capabilities, making it indispensable for modern electronic designs. Below we explore its advanced features, technical specifications, and diverse applications to help you understand why engineers worldwide trust this component.
Comprehensive Product Overview
Manufactured by onsemi, a leader in power management solutions, the LM2574N-12G is an active-status IC designed for reliability across industrial, automotive, and consumer applications. Its through-hole 8-DIP package (7.62mm width) ensures easy PCB integration while maintaining robust thermal performance.
Advanced Technical Specifications
Unmatched Voltage Flexibility
- Wide Input Range: 4.75V to 40V operation accommodates diverse power sources
- Precision Output: Fixed 12V 2% regulation accuracy
- Current Capacity: 500mA continuous output current
- Frequency Efficiency: 52kHz switching minimizes noise while optimizing power conversion
Thermal Robustness
Engineered for extreme environments with an operational temperature range of -40 C to +125 C, featuring internal thermal shutdown protection.
Configuration Options
Supports three fundamental topologies:
- Buck (Step-Down): For voltage reduction applications
- Boost (Step-Up): When higher output voltage is needed
- Buck-Boost: Maintains regulation with fluctuating input voltages
Design Advantages
Simplified Circuit Implementation
Requires only 4 external components for basic operation, reducing:
- Board space requirements by 50% compared to linear regulators
- BOM costs through minimized component count
- Design complexity for faster time-to-market
Enhanced Protection Features
- Cycle-by-cycle current limiting
- Automatic fault recovery
- Input undervoltage lockout
Industry-Leading Applications
Automotive Systems
Ideal for:
- Infotainment power supplies
- ECU voltage regulation
- LED lighting drivers
Industrial Electronics
Perfect solution for:
- PLC power modules
- Sensor node power supplies
- Motor control circuits
Consumer Devices
Enables efficient power in:
- Smart home controllers
- Portable medical devices
- IoT edge nodes
Competitive Advantages
| Feature | LM2574N-12G | Competitor A | Competitor B |
|---|---|---|---|
| Input Range | 4.75-40V | 5-30V | 6-36V |
| Efficiency | 88% (typical) | 82% | 85% |
| Thermal Range | -40 C to +125 C | -25 C to +85 C | -40 C to +105 C |
Implementation Guide
Recommended Layout Practices
- Place input capacitor within 10mm of VIN pin
- Use star grounding for optimal noise performance
- Keep feedback traces short and direct
Thermal Management
For high-current applications:
- Add 1oz copper pours for heat dissipation
- Consider forced air cooling above 85 C ambient
- Monitor junction temperature in continuous operation
Why Engineers Choose LM2574N-12G
With over 1 million units deployed worldwide, this regulator delivers:
- Proven Reliability: 0.1% field failure rate
- Cost Efficiency: 30% lower system cost than discrete solutions
- Design Flexibility: Compatible with both new designs and legacy upgrades
For datasheets, evaluation boards, or volume pricing, contact our technical support team today. The LM2574N-12G represents the smart choice for power conversion challenges across all industries.