MAX1712

High-Speed, Digitally Adjusted Step-Down Controllers for Notebook CPUs

Digitally Adjustable Step-Down Controller Powers 12A Mobile Processors with Only Four Output Capacitors


Please check latest availability status for a specific part variant.

Description

The MAX1710/MAX1711 step-down controllers are intended for core CPU DC-DC converters in notebook computers. They feature a triple-threat combination of ultra-fast transient response, high DC accuracy, and high efficiency needed for leading-edge CPU core power supplies. Maxim's proprietary Quick-PWM™ quick-response, constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns "instant-on" response to load transients while maintaining a relatively constant switching frequency.

High DC precision is ensured by a 2-wire remote-sensing scheme that compensates for voltage drops in both the ground bus and supply rail. An on-board, digital-to-analog converter (DAC) sets the output voltage in compliance with Mobile Pentium II® CPU specifications.

The MAX1710 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by an ability to drive very large synchronous-rectifier MOSFETs.

Single-stage buck conversion allows these devices to directly step down high-voltage batteries for the highest possible efficiency. Alternatively, 2-stage conversion (stepping down the +5V system supply instead of the battery) at a higher switching frequency allows the minimum possible physical size.

The MAX1710/MAX1711 are identical except that the MAX1711 have 5-bit DACs and the MAX1710 has a 4-bit DAC. Also, the MAX1711 has a fixed overvoltage protection threshold at VOUT = 2.25V and undervoltage protection at VOUT = 0.8V whereas the MAX1710 has variable thresholds that track VOUT. The MAX1711 is intended for applications where the DAC code may change dynamically.
MAX1710, MAX1711, MAX1712: Typical Operating Circuit MAX1710, MAX1711, MAX1712: Typical Operating Circuit Enlarge+

Key Features

  • Ultra-High Efficiency
  • No Current-Sense Resistor (Lossless ILIMIT)
  • Quick-PWM with 100ns Load-Step Response
  • ±1% VOUT Accuracy over Line and Load
  • 4-Bit On-Board DAC (MAX1710)
  • 5-Bit On-Board DAC (MAX1711/MAX1712)
  • 0.925V to 2V Output Adjust Range (MAX1711/MAX1712)
  • 2V to 28V Battery Input Range
  • 200/300/400/550kHz Switching Frequency
  • Remote GND and VOUT Sensing
  • Over/Undervoltage Protection
  • 1.7ms Digital Soft-Start
  • Drive Large Synchronous-Rectifier FETs
  • 2V ±1% Reference Output
  • Power-Good Indicator
  • Small 24-Pin QSOP Package

Applications/Uses

  • CPU Core DC-DC Converters
  • Docking Stations
  • Notebook Computers
  • Single-Stage (BATT to VCORE) Converters
  • Two-Stage (+5V to VCORE) Converters
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingDC-DC OutputsOper. Freq.
(kHz)
Package/Pins
minmaxminmax
MAX1711 2280.9252Digital/VID7ExternalYes1550
DICE SALES
QSOP/24
See All Step-Down Switching Regulators (380)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX1711EVKIT: Voltage-Positioning Evaluation Kit for the MAX1711

Technical Documents

Tutorial 4992 Reduce the Chances of Human Error: Part 1, Power and Ground
Tutorial 735 Layout Considerations for Non-Isolated DC-DC Converters

Quality and Environmental Data

Request Reliability Report for: MAX1712 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Maxim Products for Intel IMVP
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 >

 
Status:
Package:
Temperature:

Related Resources


MAX77501
110VPK-PK High-Efficiency Piezo Haptic Actuator Boost Driver

  • 110VPK-PK Haptic Waveforms Generation
  • Optimized for up to 2µF Haptic Piezo Actuator
  • 2.8V to 5.5V Input Supply Range

MAX20457
36V Dual 3.5A/2A Synchronous Buck Converters for Automotive Applications

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • Enables Crank-Ready Designs
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input-Voltage Range

MAXM17536
4.5V to 60V, 4A High-Efficiency, DC-DC Step-Down SiP Power Module with Integrated Inductor

  • Reduces Design Complexity, Manufacturing Risks, and Time-to-Market
  • Saves Board Space in Space-Constrained Applications
  • Offers Flexibility for Power-Design Optimization

MAX17576
4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX20412
Automotive Low-Voltage 2-Channel Step-Down Controller

  • 2-Channel, High-Efficiency DC-DC Controller in a Small Solution Size
  • High-Precision Regulator for Applications Processors
  • Low-Noise Features Reduce EMI

MAX20343
Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

  • Extend System Run Time
  • Low, Continuous Noise Profile
  • Adaptable Load Transient Response

MAX20004E
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX20006E
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX20008E
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

  • Multiple Functions for Small Size
  • High Precision
  • Robust for the Automotive Environment

MAX17630
4.5V to 36V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX20011
Automotive Single 8A/12A Step-Down Converter with High Efficiency

  • High-Efficiency DC-DC Converter
  • Up to 12A peak output current:
  • Differential Remote Voltage Sensing

MAX15158Z
High-Voltage Multiphase Boost Controller

  • Wide Operating Range
  • Integration Reduces Design Footprint
  • Robust Fault Protection Improves Quality and Reliability

MAX20079
Automotive 36V 3.5A Buck Converter with 3.5μA IQ

  • Synchronous DC-DC Converter with Integrated FETs
  • Small Solution Size Saves Space
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX20026, MAX20026S
Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

  • High-Integration Shrinks Solution Size
  • Performance Designed for Automotive Point-of-Load Regulation
  • Low-Noise Features Improve EMI Performance

MAX20026S
Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

  • High-Integration Shrinks Solution Size
  • Performance Designed for Automotive Point-of-Load Regulation
  • Low-Noise Features Improve EMI Performance

MAX20801
MPP Tracking DC-DC Converter

  • Performs MPPT on 20-24 Series Connected PV Cells
  • Fast MPPT Reacts Quickly to Changing Conditions
  • Integrated Voltage-Limiting Clamps Output Voltage

MAX20800
MPP Tracking DC-DC Converter

  • Performs MPPT on 20-24 Series Connected PV Cells
  • Fast MPPT Reacts Quickly to Changing Conditions
  • Integrated Voltage-Limiting Clamps Output Voltage

MAX20059
72V, 1A, Automotive Synchronous Step-Down DC-DC Converter

  • Synchronous DC-DC Converters with Integrated FETs
  • Flexibility
  • Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

MAX20058
60V, 1A, Automotive Synchronous Step-Down DC-DC Converter

  • Synchronous DC-DC Converters with Integrated FETs
  • Flexibility
  • Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

MAXM15065
4.5V to 60V, 300mA Step-Down uSLIC Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM15067
4.5V to 60V, 300mA Step-Down uSLIC Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM15066
4.5V to 60V, 300mA Step-Down uSLIC Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17904
4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17905
4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17906
4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAX20010C
Automotive Single 6A Step-Down Converters

  • Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
  • High-Precision Voltage Regulator for Applications Processors
  • Low-Noise Feature Reduces EMI

MAX20010D
Automotive Single 6A Step-Down Converters

  • Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
  • High-Precision Voltage Regulator for Applications Processors
  • Low-Noise Feature Reduces EMI

MAX20048
Automotive 40V, 55µA IQ, 2.2MHz, H-Bridge Buck-Boost Controller

  • Meets Stringent Automotive Quality and Reliability Requirements
  • Efficient Solution in a Small Solutions Size
  • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements

MAX20039
Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

  • Meets Stringent Automotive Quality and Reliability Requirements
  • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
  • High Switching Frequency Allows Use of Small External Components

MAX20040
Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

  • Meets Stringent Automotive Quality and Reliability Requirements
  • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
  • High Switching Frequency Allows Use of Small External Components

MAX20029B
Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters

  • Quad Step-Down DC-DC Converters with Integrated FETs
  • Operate from 3.0V to 5.5V Supply Voltage
  • 1.0V to 4.0V Fixed or Adjustable Output Voltage

MAX20029, MAX20029B, MAX20029C
Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters

  • Quad Step-Down DC-DC Converters with Integrated FETs
  • Operate from 3.0V to 5.5V Supply Voltage
  • 1.0V to 4.0V Fixed or Adjustable Output Voltage

MAX20029C
Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters

  • Quad Step-Down DC-DC Converters with Integrated FETs
  • Operate from 3.0V to 5.5V Supply Voltage
  • 1.0V to 4.0V Fixed or Adjustable Output Voltage

MAX77827
5.5V Input, 1.8A/3.1A Switch Buck-Boost Converter with 6μA IQ

  • 1.8V to 5.5V Input Voltage Range
  • 2.3V to 5.3V Single Resistor Adjustable Output Voltage
  • 1.6A Maximum Output Current (3.1A ILIM Option, Buck Mode)