Vishay Semiconductors SiC641 55A VRPower® Integrated Power Stage
Vishay Semiconductors SiC641 55A VRPower® Integrated Power Stage is designed for synchronous buck applications, delivering high current, efficiency, and power density with minimal shutdown current. The Vishay Semiconductors SiC641 is housed in a proprietary 5mm x 5mm MLP package. The SiC641 supports voltage regulators with up to 55A continuous current per phase. Featuring Vishay’s advanced TrenchFET® technology, these devices minimize switching and conduction losses for industry-leading performance.
Features
- Thermally enhanced PowerPAK® MLP55-31L package
- TrenchFET technology and low-side MOSFET with integrated Schottky diode
- Integrated, low impedance, bootstrap switch
- Power MOSFETs optimized for 12V input stage
- Supports PS4 mode light load requirement with low shutdown supply current (5V, 3μA)
- Zero current detection for improved light load efficiency
- 5V and 3.3V PWM logic with tri-state and hold-off timer
- 5V DSBL#, ZCD_EN# logic with PS4 state support
- High-frequency operation up to 2MHz
- Delivers more than 55A continuous current, 70A peak (10ms), and 100A peak (10μs)
- Over current protection
- Over temperature flag
- Over temperature protection
- Undervoltage lockout protection
- High-side MOSFET short detection
- Effective monitoring and reporting
- Accurate temperature reporting
- Warnings and faults reporting flag
Applications
- Multi-phase VRDs for computing, graphics card and memory
- Intel core processor power delivery
- VCORE, VGRAPHICS, VSYSTEM AGENT, VCCGI
- Up to 16V rail input DC/DC VR modules
TYPICAL APPLICATION
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Published: 2024-11-19
| Updated: 2025-02-20