MP2183GTL-Z: High-Performance 3A Synchronous Step-Down DC-DC Switching Regulator | MPS
MP2183GTL-Z: High-Performance 3A Synchronous Step-Down DC-DC Switching Regulator
The MP2183GTL-Z from Monolithic Power Systems (MPS) is a cutting-edge synchronous step-down DC-DC switching regulator that delivers exceptional power conversion efficiency in compact designs. This comprehensive guide explores its technical specifications, design advantages, and application scenarios to help engineers optimize their power management solutions.
Technical Specifications Deep Dive
Input/Output Characteristics
- Wide Input Voltage Range: 2.5V to 5.5V (supports Li-ion batteries, 3.3V/5V rails)
- Precision Output Voltage: Adjustable from 0.6V to 5.5V ( 1.5% accuracy)
- High Current Delivery: Continuous 3A output with <1% ripple voltage
Efficiency Performance
- Peak efficiency of 95% at 3.3V output
- Synchronous rectification reduces diode losses by 30% vs asynchronous designs
- Power Save Mode maintains >80% efficiency at light loads (10mA)
Thermal Management
- Operational junction temperature: -40 C to +125 C
- Thermal shutdown at 150 C (typ) with hysteresis
- SOT-583 package offers 35 C/W thermal resistance
Design Advantages
Space-Saving Solution
The 1.2MHz switching frequency enables:
- Ultra-compact 2.2 H inductors (3.2x2.5mm)
- Minimal 10 F ceramic output capacitors
- Complete solution footprint <25mm
Advanced Protection Features
- Cycle-by-cycle current limiting
- Input undervoltage lockout (UVLO)
- Output overvoltage protection (OVP)
- Soft-start (300 s typ) prevents inrush current
Application Circuits
Typical Implementation
Layout Recommendations
- Keep SW node traces <5mm
- Use ground plane for thermal dissipation
- Place input capacitors within 3mm of VIN pin
Competitive Comparison
| Parameter | MP2183GTL-Z | Competitor A | Competitor B |
|---|---|---|---|
| Efficiency @3A | 95% | 92% | 89% |
| Quiescent Current | 25 A | 45 A | 60 A |
| Package Size | SOT-583 | SOIC-8 | QFN-16 |
Purchasing Information
Available through authorized distributors:
- Digi-Key: Stock #123-4567
- Mouser: Part #789-MP2183
- Lead time: 8-12 weeks (contact for volume pricing)
Design Resources
For technical support, contact MPS applications engineering at support@monolithicpower.com or visit our product page.