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Renesas Electronics ISL99227 Smart Power Stage

Renesas Electronics ISL99227 Smart Power Stage (SPS) is designed to work with the ISL681x Digital Multiphase (DMP) controllers. The ISL99227 offers integrated high accuracy current and temperature monitors that can be fed back to the controller to complete a multiphase DC/DC system. These devices simplify design and increase performance by eliminating the DCR sensing network and associated thermal compensation. Light-load efficiency is supported via a dedicated LFET control pin. The thermally enhanced, 5.0mm x 5.0mm PQFN package requires minimal overall PCB real estate.

Renesas Electronics ISL99227 SPS features a 3.3V compatible, 5.0V compatible, tri-state PWM input. Working together with the multiphase PWM controllers, the Smart Power Stage provides a robust solution in the event of abnormal operating conditions. The ISL99227 also improves system performance and reliability with integrated fault protection of UVLO, over-temperature, and overcurrent. An open-drain fault reporting pin simplifies the handshake between SPS and Intersil controllers and can be used to disable the controller during start-up and fault conditions.

Features

  • Supports 60A DC current
  • 3.3V compatible tri-state PWM input
  • Downslope current sensing
  • ±3% accuracy current monitor (IMON) with REFIN input
  • 8mV/°C temperature monitor with OT flag
  • Dedicated low-side FET control input
  • Comprehensive fault protection for high system reliability
  • High-side FET short and overcurrent protection
  • Over-temperature protection
  • VCC and VIN Undervoltage Lockout (UVLO)
  • Open-drain fault reporting output
  • Pb-free (RoHS compliant)
  • Compact 32-lead PQFN Package

Applications

  • High frequency and high-efficiency VRM and VRD
  • Core, graphic, and memory regulators for microprocessors
  • High-density VR for server, networking, and cloud computing
  • POL DC/DC converters and video gaming consoles

Specifications

  • 60A current rating
  • 3.3V to 5V PWN input range
  • 5.0mm x 5.0mm PQFN package
  • 2MHz maximums switching frequency

Related Products

Renesas Electronics ISL681x Digital Multiphase PWM Controllers

Digital multiphase controllers with up to 7 phases.

Learn Moretungkol sa Renesas Electronics ISL681x Digital Multiphase PWM Controllers View Productskaugnay ng Renesas Electronics ISL681x Digital Multiphase PWM Controllers
Inilathala: 2016-12-02 | Na-update: 2022-03-11