概览

优势和特点

  • High Per-Phase Current Capability
  • Footprint < 1600mm2 for a 150A VR
  • Precise Temperature Monitoring and Reporting through a Master Controller IC SMBus
  • Accurate Per-Phase Current Reporting Using a Master Controller IC
  • Top-side Cooling Allows Improved Heat Transfer to Ambient
  • Supplies UVLO/OVLO, Bootstrap Voltage UVLO, VX Short Protection
  • Overcurrent Protection
  • Overtemperature Protection—Fast Shutdown
  • Switching Frequency 300KHz—1.3MHz
  • Compatible With Coupled Inductor

产品详情

The VT1697SB is a feature-rich smart slave IC designed to work with Maxim’s seventh-generation masters to implement a high-density multiphase voltage regulator. Up to six smart slave ICs, plus a master IC, provide a compact synchronous buck converter that includes accurate individual phase-current and temperature reporting via SMBus/PMBus. This smart slave device includes protection circuits for overtemperature, VS short, all power supplies UVLO faults and main power supply OVLO fault. If a fault is detected, the slave IC will immediately shut down and send a fault signal to the master IC.

Monolithic integration and advanced packaging technologies allow practical per-phase, high switching frequencies with significantly lower losses than alternative implementations. Smart slave devices are designed to support phase-shedding and DCM modes for efficiency optimization over a wide range of load currents. High per-phase current-capability designs with low COUT enable a design with fewer phases and a smaller footprint.

The VT1697SB is packaged in a QFN package with exposed top-side thermal pads. Top-side cooling allows improved heat transfer to ambient and reduces PC board and component temperatures.

Applications

  • High-Current Voltage Regulators
  • Microprocessor: 32-Bit and 64-Bit I/A RISC Architectures
  • Memory
  • Networking ASICs
  • Graphic Processors

产品生命周期 icon-recommended 量产

该产品系列中至少有一个型号已量产并可供采购。该产品适合用于新设计,但也可能有更新的替代产品。

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