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

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

产品选择

器件号 Part Status Pkg. Type Carrier Type Buy Sample
Active PQFN Reel
Availability
Active PQFN Reel
Availability

文档和下载

文档标题 language 类型 文档格式 文件大小 日期
数据手册与勘误表
RAA221320 Short-Form Datasheet 简易格式数据手册 PDF 100 KB
RAA221320 Datasheet 数据手册 PDF 534 KB
使用指南与说明
PMBus Interface Install Guide - Win7 x86 and x64 手册 PDF 693 KB
应用指南 &白皮书
AN1681: Grounding Techniques 应用文档 PDF 509 KB
AN1684: Nonideality of Ground 应用文档 PDF 397 KB
其他
PMBus Conversion Software Tool ZIP 54.93 MB
ZLHLD Software v2.9 ZIP 119.19 MB
CompZL Software v1.5.1 ZIP 59.25 MB
PowerPilot Software GUI ZIP 435 KB
USB Drivers for the ZLUSBEVAL1Z (Windows XP/Vista) ZIP 166 KB
USB Drivers for the ZLUSBEVAL1Z (Windows 7) ZIP 1.75 MB