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MAX8794

MAX8794

Low-Voltage DDR Linear Regulator

Low-Cost, Low-Voltage DDR Linear Regulator Sources and Sinks Up to 3A Peak (typ) Using Internal n-Channel MOSFETs

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Overview

Description

The MAX8794 DDR linear regulator sources and sinks up to 3A peak (typ) using internal n-channel MOSFETs. This linear regulator delivers an accurate 0.5V to 1.5V output from a low-voltage power input (VIN = 1.1V to 3.6V). The MAX8794 uses a separate 3.3V bias supply to power the control circuitry and drive the internal n-channel MOSFETs.

The MAX8794 provides current and thermal limits to prevent damage to the linear regulator. Additionally, the MAX8794 generates a power-good (PGOOD) signal to indicate that the output is in regulation. During startup, PGOOD remains low until the output is in regulation for 2ms (typ). The internal soft-start limits the input surge current.

The MAX8794 powers the active-DDR termination bus that requires a tracking input reference. The MAX8794 can also be used in low-power chipsets and graphics processor cores that require dynamically adjustable output voltages. The MAX8794 is available in a 10-pin, 3mm x 3mm, TDFN package.
MAX8794: Typical Operating Circuit MAX8794: Typical Operating Circuit Enlarge+

Key Features

  • Internal Power MOSFETs with Current Limit (3A typ)
  • Fast Load-Transient Response
  • External Reference Input with Reference Output Buffer
  • 1.1V to 3.6V Power Input
  • ±15mV (max) Load-Regulation Error
  • Thermal-Fault Protection
  • Shutdown Input
  • Power-Good Window Comparator with 2ms (typ) Delay
  • Small, Low-Profile, 10-Pin, 3mm x 3mm TDFN Package
  • Ceramic or Polymer Output Capacitors

Applications/Uses

  • Active Termination Buses
  • Chipset/RAM Supplies as Low as 0.5V
  • DDR Memory Termination
  • Graphics Processor Core Supplies
  • Notebook/Desktop Computers

Design Resources

Quality and Environmental Data

Product Reliability Reports: MAX8794.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX8794ETB+
  • MAX8794ETB+T
  • MAX8794ETB/V+
  • MAX8794ETB/V+T
    •

    Quality And Environmental

    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

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    2020 Detroit Grand Prix - Chevrolet Detroit Grand Prix presented by Lear Fast Facts The Chevrolet Detroit Grand Prix presented by Lear was hosted on Belle Isle, May 29 - 30 2020. The event featured the cars of the NTT IndyCar Series, the IMSA WeatherTech SportsCar Championship and the Trans Am Series presented by Pirelli. The weekend is collectively referred to as the Chevrolet Detroit Grand Prix presented by Lear and it once again featured the Chevrolet Dual in Detroit IndyCar doubleheader.

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