MAX1586B

High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smartphones

High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smartphones Using Intel XScale Microprocessors


Please check latest availability status for a specific part variant.

Description

The MAX1586/MAX1587 power-management ICs are optimized for devices using Intel XScale® microprocessors, including third-generation smart cell phones, PDAs, internet appliances, and other portable devices requiring substantial computing and multimedia capability at low power.

The ICs integrate seven high-performance, low-operating-current power supplies along with supervisory and management functions. Regulator outputs include three step-down DC-DC outputs, three linear regulators, and a seventh always-on output. DC-DC converter outputs power I/O, DRAM, and the CPU core. The I/O supply can be preset to 3.3V or 3.0V, or can be adjusted to other values. The DRAM supply on the MAX1586A and MAX1587A is preset for 1.8V or 2.5V, while the MAX1586B DRAM supply is preset for 3.3V or 2.5V. The DRAM supply on all parts can also be adjusted with external resistors. The CPU core supply is serial programmed for dynamic voltage management. Linear-regulated outputs are provided for SRAM, PLL, and USIM supplies.

To minimize sleep-state quiescent current, critical power supplies have bypass "sleep" LDOs that can be activated to minimize battery drain when output current is very low. Other functions include separate on/off control for all DC-DC converters, low-battery and dead-battery detection, a reset and power-OK output, a backup-battery input, and a two-wire serial interface.

All DC-DC outputs use fast, 1MHz PWM switching and small external components. They operate with fixed-frequency PWM control and automatically switch from PWM to skip-mode operation at light loads to reduce operating current and extend battery life. The core output is capable of operating in forced-PWM mode at all loads to minimize ripple and noise. A 2.6V to 5.5V input voltage range allows 1-cell lithium-ion (Li+), 3-cell NiMH, or a regulated 5V input. The MAX1587 is available in a tiny 6mm x 6mm, 40-pin thin QFN package. The MAX1586 features an additional linear regulator (V6) for VCC_USIM and low-battery and dead-battery comparators. The MAX1586 is available in a 7mm x 7mm, 48-pin thin QFN package.
MAX1586A, MAX1586B, MAX1586C, MAX1587A, MAX1587C: Functional Diagram MAX1586A, MAX1586B, MAX1586C, MAX1587A, MAX1587C: Functional Diagram Enlarge+

Key Features

  • Six Regulators in One Package:
    • Step-Down DC-DC for I/O at 1.3A
    • Step-Down DC-DC for Memory at 0.9A
    • Step-Down Serial-Programmed DC-DC for CORE
    • Three LDO Outputs for SRAM, PLL, and USIM
    • Always-On Output for VCC_BATT
  • Low Operating Current
    • 60µA in Sleep Mode (Sleep LDOs On)
    • 130µA with DC-DCs On (Core Off)
    • 200µA All Regulators On, No Load
    • 5µA Shutdown Current
  • Optimized for XScale Processors
  • Backup-Battery Input
  • Separate ON Controls for Any Desired Power Sequencing
  • 1MHz PWM Switching Allows Small External Components
  • Tiny 6mm x 6mm, 40-Pin and 7mm x 7mm, 48-Pin Thin QFN Packages

Applications/Uses

  • Internet Appliances and Web-Books
  • PDA, Palmtop, and Wireless Handhelds
  • Third-Generation Smart Cell Phones
Part NumberPrimary TopologyMonitor/Control FeaturesDC-DC/Power FeaturesVIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Max. IOUT
(A)
Max. IOUT
(A)
Oper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX1586A Step-Down
Dynamic V Adj.
Low Batt./POK Output
Reset Output
Serial Interface
Shutdown
Current Limit
Internal Switch
Soft Start
Sync. Rectifier
2.65.50.75.51.21.21000
TQFN/48
$5.16 @1k
MAX1586B 
Current Limit
Fixed Freq./PWM
Internal Switch
Soft Start
Sync. Rectifier
TQFN/48
$5.16 @1k
MAX1586C 
Current Limit
Fixed Freq./PWM
Internal Switch
Soft Start
Sync. Rectifier
TQFN/48
$5.16 @1k
MAX1587A 
Current Limit
Fixed Freq./PWM
Internal Switch
Soft Start
Sync. Rectifier
TQFN/40
$4.84 @1k
MAX1587C 
Current Limit
Fixed Freq./PWM
Internal Switch
Soft Start
Sync. Rectifier
TQFN/40
$5.18 @1k
See All Multifunction PMICs (85)
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.


MAX1586AEVCMAXQU: MAX1586A Evaluation Kit/Evaluation System
MAX1586AEVKIT: MAX1586A Evaluation Kit/Evaluation System

Quality and Environmental Data

Product Reliability Reports: MAX1586B.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

More about Maxim technology for XScale PMICs

CAD Symbols and Footprints

  • MAX1586BETM+
  • MAX1586BETM+T
  • 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


    Belle Isle 2020
    05/29/2020 - 05/31/2020, Detroit, MI
    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.

    RSVP