General Description

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

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

    Up to 0.9A

    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

♦ 1MHz PWM Switching Allows Small External Components

♦ Tiny 6mm x 6mm, 40-Pin and 7mm x 7mm, 48-Pin Thin QFN Packages

Applications

    PDA, Palmtop, and Wireless Handhelds

    Third-Generation Smart Cell Phones

    Internet Appliances and Web-Books