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

Comparison

Applications

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

Type Title Date
Datasheet - Short-form PDF 100 KB
Datasheet Log in to Download PDF 1.52 MB
Product Advisory PDF 271 KB
Manual - Hardware PDF 693 KB
Application Note PDF 509 KB
Application Note PDF 397 KB
6 items

Design & Development

Software & Tools

Software Downloads

Type Title Date
Library ZIP 54.93 MB
Library ZIP 119.19 MB
Library ZIP 59.25 MB
Library ZIP 435 KB
Library ZIP 1.75 MB
Library ZIP 166 KB
6 items

Models