概览

简介

The RAA221320 is a Smart Power Stage (SPS) compatible with the ISL68xxx/69xxx Digital Multiphase (DMP) controllers. The SPS has integrated high-accuracy current and temperature monitors that are fed back to the controller to complete a multiphase DC/DC system. These monitors simplify design and increase performance by eliminating the DCR sensing network and associated thermal compensation. An industry-leading thermally enhanced 4x5 PQFN package allows minimal overall PCB real estate.

The SPS features a 3.3V compatible tri-state PWM input that works together with the Renesas multiphase PWM controllers to provide a robust solution in abnormal operating conditions. The SPS also improves system performance and reliability with integrated fault protection of UVLO, shorted HFET, over-temperature, and overcurrent. An open-drain fault reporting pin simplifies the handshake between the SPS and controllers and can disable the controller during startup and fault conditions.

特性

  • Input range: +3.0V to +16V
  • Supports 20A 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
  • Comprehensive fault protection for high system reliability
    • Shorted HFET and overcurrent protection
    • Over-Temperature Protection (OTP)
    • VCC Undervoltage Lockout (UVLO)
  • Fault reporting outputs (TMON, Fault#, and IMON)
  • Up to 1.5MHz switching frequency
  • Pb-free (RoHS compliant), 25 Ld 4 x 5 PQFN

产品对比

应用

应用

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

文档

类型 文档标题 日期
数据手册 - 简易格式 PDF 100 KB
数据手册 登录后下载 PDF 1.52 MB
Product Advisory PDF 271 KB
手册 - 硬件 PDF 693 KB
应用文档 PDF 509 KB
应用文档 PDF 397 KB
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设计和开发

软件与工具

软件下载

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ZIP 59.25 MB
ZIP 435 KB
ZIP 1.75 MB
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模型