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Maxim > Products > Power and Battery Management 
MAX8660, MAX8660A, MAX8661
High-Efficiency, Low-IQ, PMICs with Dynamic Voltage Management for Mobile Applications

Smallest Size and Highest Efficiency PMIC Solutions for Intel's Monahans Processor


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Data Sheet
FULL DATA SHEET (PDF, 812kB)
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Description
The MAX8660/MAX8661 power management ICs (PMICs) power Intel XScale® applications processors in smart cellular phones, PDAs, Internet appliances, and other portable devices.

Four step-down DC-DC outputs, three linear regulators, and an 8th always-on LDO are integrated with power-management functions. Two dynamically controlled DC-DC outputs power the processor core and internal memory. Two other DC-DC converters power I/O, memory, and other peripherals. Additional functions include on/off control for outputs, low-battery detection, reset output, and a 2-wire I²C serial interface. The MAX8661 functions the same as the MAX8660, except it lacks the REG1 step-down regulator and the REG7 linear regulator.

All step-down DC-to-DC outputs use fast 2MHz PWM switching and tiny external components. They automatically switch from PWM to high-efficiency, light-load operation to reduce operating current and extend battery life. In addition, a forced-PWM option allows low-noise operation at all loads. Overvoltage lockout protects the device against inputs up to 7.5V.

Key Features   Applications/Uses
  • Optimized for Intel XScale Processors
  • Protected to 7.5V—Shutdown Above 6.3V
  • Four Synchronous Step-Down Converters
    • REG1, REG2, REG3, REG4
  • Four LDO Regulators
    • REG5, REG6, REG7, REG8
  • 2MHz Switching Allows Small Components
  • Low, 20µA Deep-Sleep Current
  • Low-Battery Monitor and Reset Output

 
  		• Digital Cameras
  		• PDAs, Palmtops, and Wireless Handhelds
  		• Personal Media Players
  		• Portable GPS Navigation Systems
  		• Smart Cell Phones

    Key Specifications:   Multifunction PMICs
    Part Number Primary Topology Target Processor or Spec. Monitor/Control Features DC-DC/Power Features VIN (min) (V) VIN (max) (V) Min. VOUT (V) Max. VOUT (V) IOUT (A) IOUT (A) Operating Freq. (kHz) Package Price**
    MAX8660  Step-Down Monahans/ PXA3xx Dynamic V Adj.
    Low Batt./POK Output
    Reset Output
    Serial Interface
    Shutdown     		Current Limit
    Fixed Freq./PWM
    Internal Pwr. FETs
    Soft Start
    Sync. Rectifier     		2.6 6 0.725 3.3 1.6 1.6 2000 THIN QFN/40 $4.50 @ 1k
    MAX8660A  2.5 $4.50 @ 1k
    MAX8661  3.3 $3.90 @ 1k
    See All Multifunction PMICs (76)
    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 prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX8660, MAX8660A, MAX8661: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 4049: MAX8660/MAX8661 PCB Layout Guide - MAX8660

    Evaluation Kits
  		• MAX8660EVCMAXQU, MAX8660EVKIT

    Design Guides
  		• Power Management for Battery-Powered Equipment (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-6 of 6

    MAX8660 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8660ETL+  
    		THIN QFN;40 pin;
    Dwg: 21-0140 (PDF)
    Use pkgcode/variation: T4055+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8660ETL+T  
    		THIN QFN;40 pin;
    Dwg: 21-0140 (PDF)
    Use pkgcode/variation: T4055+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8660A Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8660AETL+  
    		THIN QFN;40 pin;
    Dwg: 21-0140 (PDF)
    Use pkgcode/variation: T4055+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8660AETL+T  
    		THIN QFN;40 pin;
    Dwg: 21-0140 (PDF)
    Use pkgcode/variation: T4055+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8661 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8661ETL+  
    		THIN QFN;40 pin;
    Dwg: 21-0140 (PDF)
    Use pkgcode/variation: T4055+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8661ETL+T  
    		THIN QFN;40 pin;
    Dwg: 21-0140 (PDF)
    Use pkgcode/variation: T4055+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• New Product Press Release 2006-08-31 
  		• Product Ad: Download
  		• More about Maxim technology for XScale PMICs

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    Document Ref.: 19-0587; Rev 1; 2006-10-30
    This page last modified: 2007-06-29




             


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