Power & Power Management

Overview

Description

The RAA221340 Smart Power Stage (SPS) is 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. The SPS simplifies design and increases 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 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 start-up and fault conditions.

Features

  • Input range: +3.0V to +16V
  • Supports 40A 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

Applications

  • 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

Documentation

Title Type Date
PDF100 KB
Datasheet - Short-form
PDF509 KB
Application Note
PDF397 KB
Application Note
PDF1.06 MB
Datasheet
PDF693 KB
Manual - Hardware

Design & Development

Software & Tools

Software Downloads

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ZIP54.93 MB
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Models

Support