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特性
- Space-Optimized Solution
- Monolithic, Smart Power Stage
- Small Footprint: 22mm2 or 24mm2
- Peak Efficiency with 8-Phase, 600kHz, 4.5V VIN
- 95.4% at 1V VOUT
- 93.1% at 0.6V VOUT
- 300kHz to 1.3MHz Switching Frequency
- Telemetry and Fault Reporting through Controller IC PMBus
- Accurate Temperature Monitoring and Reporting
- Accurate per-Phase Current Reporting
- Fault_ID Indicates Type of Fault
- SEL Input for Single-/Parallel-Mode Operation (MAX16625C/MAX16627C) or VX_FAULT Output (MAX16625A/B, MAX16627A/B)
- Advanced Self-Protection Features
- Supply and Boost UVLO Protection
- Input Supply OVLO Protection
- Boost Refresh
- VX Short and Overtemperature Shutdown
- VX Open and Short Detection at Power-up
- Fast Overcurrent Protection
- I/O Open/Short Pin Startup Check
产品详情和应用
The MAX16625/MAX16627 are feature-rich low input voltage smart power-stage ICs designed to work with Analog Devices’ controllers to implement a high-density multiphase voltage regulator. Multiple smart power-stage ICs plus a controller provide a compact synchronous buck converter that includes accurate individual phase current and temperature reporting through PMBus™. These smart power-stage devices include fault-protection circuits for overtemperature, VX short, I/O open/short, supply undervoltage lockout (UVLO), and main power-supply overvoltage lockout (OVLO). The MAX16625/MAX16627 immediately shut down on fault detection, communicating the Fault_ID to the controller.
Monolithic integration and advanced packaging technology allow high-switching frequencies with significantly lower losses than conventional implementations. Phase shedding and discontinuous conduction modes (DCM) optimize efficiency over a wide range of load currents.
The MAX16625 is available in a standard (3.25mm x 7.4mm) 12-pin FC2QFN package, while the MAX16627 is in a narrow (3.05mm x 7.25mm) 12-pin FC2QFN package. Both packages have an exposed top-side thermal pad.
APPLICATIONS
- High-Current Multiphase-Voltage Regulators
- AI and Machine Learning ASICs
- Networking ASICs
- Graphics Processors
- Servers, Workstations, and Enterprise Storage
- Communications and Networking Equipment
