MP4572GQB-Z: High-Efficiency 2A 60V Step-Down DC-DC Switching Regulator | MPS
MP4572GQB-Z: High-Efficiency 2A 60V Step-Down DC-DC Switching Regulator by Monolithic Power Systems
The MP4572GQB-Z represents the cutting edge of power management technology from Monolithic Power Systems (MPS), offering engineers an exceptionally efficient solution for step-down voltage conversion in space-constrained applications. This comprehensive guide explores every aspect of this advanced DC-DC regulator to help design engineers make informed decisions for their power systems.
In-Depth Technical Specifications
Unparalleled Input Voltage Range
With an industry-leading 4.5V to 60V input range, the MP4572GQB-Z outperforms competing regulators in handling wide voltage fluctuations. This makes it particularly valuable for:
- Automotive systems (12V/24V/48V networks)
- Industrial equipment with unstable power sources
- Battery-powered applications with wide discharge curves
Advanced Current Handling
The regulator's 2A continuous output current capability is supported by:
- Low RDS(ON) synchronous MOSFETs (45m /35m )
- Thermally enhanced QFN package ( JA = 40 C/W)
- Internal current limit with hiccup protection
High-Frequency Operation
The adjustable 100kHz to 2.2MHz switching frequency enables:
- Use of tiny 1 H inductors (reducing solution size by 50%)
- Excellent transient response (<50 s recovery time)
- Reduced output ripple (<30mVp-p typical)
Breakthrough Efficiency Features
Synchronous Rectification Technology
The integrated synchronous rectifier achieves:
- Peak efficiency of 95% at 12VIN to 5VOUT
- Light load efficiency >85% at 10mA loads
- Efficiency >90% across 20%-100% load range
Advanced Control Modes
The MP4572GQB-Z supports multiple operating modes:
- PWM Mode for heavy loads (best ripple performance)
- PFM Mode for light loads (ultra-low quiescent current)
- Auto Transition for optimal efficiency across loads
Package and Thermal Considerations
Space-Saving 12-VFQFN Package
The 2.5 3mm package features:
- 0.5mm pitch for dense PCB layouts
- Exposed thermal pad for effective heat dissipation
- Wettable flanks for reliable solder joint inspection
Thermal Performance Data
| Parameter | Value |
|---|---|
| Maximum Junction Temp | 125 C |
| Thermal Resistance ( JA) | 40 C/W |
| Recommended Operating Temp | -40 C to +125 C |
Design Implementation Guide
Recommended External Components
For a 24V to 5V/2A application:
- Inductor: 4.7 H (ISAT >3A, DCR <50m )
- Input Capacitor: 10 F ceramic + 100 F electrolytic
- Output Capacitor: 22 F ceramic (X5R/X7R)
Layout Best Practices
- Keep SW node area minimal (<10mm2)
- Use multiple vias for thermal pad connection
- Route feedback away from noisy traces
Comparative Advantages
vs. Competing Solutions
The MP4572GQB-Z provides:
- 30% smaller solution size than discrete implementations
- 5-10% higher efficiency at light loads
- Wider operating temperature range
Application Examples
Automotive Systems
- Infotainment power supplies
- ADAS sensor modules
- LED lighting drivers
Industrial Equipment
- PLC I/O modules
- Motor control circuits
- Field instrumentation
Conclusion
The MP4572GQB-Z sets a new benchmark for high-voltage DC-DC converters, combining MPS's advanced power technology with practical design features. Its exceptional efficiency, compact footprint, and robust protection features make it the ideal choice for demanding applications across automotive, industrial, and communications markets. For engineers seeking reliable power conversion in space-constrained designs, the MP4572GQB-Z delivers uncompromising performance.
Ready to implement the MP4572GQB-Z in your design? Download the complete datasheet and evaluation board files from our technical resources section, or contact our applications engineering team for personalized design support.