Allegro MicroSystems APM81815 Synchronous Buck Regulator
Allegro MicroSystems APM81815 80V, 1.5A Synchronous Buck Regulator is a high-performing DC-DC regulator designed for 48V systems to provide superior EMI performance in dual-voltage hybrid electric vehicles. This synchronous buck regulator simplifies 48V power regulation, delivering a cost-effective solution with minimal design effort and a small footprint. The thermally enhanced and wettable flank 24-pin QFN package features exposed thermal pads and space-saving dimensions of 4mm x 4 mm x 2.1mm. Allegro MicroSystems APM81815 80V, 1.5A Synchronous Buck Regulator is automotive qualified to a Grade 1 temperature rating, which allows it to withstand harsh environments without degradation. Ideal applications include advanced driver assistance systems (ADAS), xEV powertrains, and industrial.
Features
- High-performing DC-DC regulator
- Highly integrated
- Thermally enhanced and wettable flank 24-pin QFN package
- Superior EMI performance
- Withstands harsh environments without degradation
- Minimizes number of additional components, ideal for space-constrained applications
- Simplifies 48V power regulation
- Cost-effective solution
- Minimal design effort
- Small footprint saves space
- Integrated capacitors
- Packaging technology enables integration of converter, along with EMI capacitors, to offer a power supply that will meet stringent EMC specifications without needing additional EMI filters
- Automotive qualified to Grade 1 temperature rating
Applications
- ADAS
- Steering
- Braking
- Industrial
- EV charging
- Robotics
- Datacenter power
- xEV powertrain
- Onboard chargers (OBCs)
- DC-DC
- Inverter
- Thermal management
Specifications
- 5V to 72V VIN operating range
- 1.5A continuous output current
- Integrated VIN and boot cap reduces component count and achieves ultra-low EMI
- 28μA no-load quiescent current (48VIN to 12VOUT)
- 2.15MHz internally fixed and adjustable from 400kHz to 2.4MHz
- 4mm x 4mm x 2.1mm dimensions
Functional Block Diagram
Typical Application Circuit
Associated Products
Allegro MicroSystems APM81911 Synchronous DC-DC Buck Regulator Modules
Highly integrated, 3A, low EMI devices that satisfy demanding power delivery requirements.
Related Application
Allegro MicroSystems Robotics
Highly versatile components to enhance the performance and reliability of robotic systems.
Publié le: 2024-11-06
| Mis à jour le: 2025-03-03