VT1697SB

Smart Slave IC with Integrated Current and Temperature Sensors

High-Current, Smart-Slave IC with Integrated Current and Temperature Sensors


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Description

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.
VT1697SB: Basic Application Circuit VT1697SB: Basic Application Circuit Enlarge+

Key Features

  • 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

Applications/Uses

  • High-Current Voltage Regulators
  • Microprocessor: 32-Bit and 64-Bit I/A RISC Architectures
  • Memory
  • Networking ASICs
  • Graphic Processors
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
IOUT1
(A)
Switch TypeSynchronous SwitchingDC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
VT1697SB 8.51401455InternalYes11300
FCQFN/16
$4.25 @1k
See All Step-Down Switching Regulators (360)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX20751S1VKIT: Evaluation Kit for the MAX20751/VT1697SB

CAD Symbols and Footprints

  • VT1697SBFQ
  • VT1697SBFQX
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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