High-efficiency, Low-iq Pmics With Dynamic Core For Pdas And Smart Phones Integrated Products

The MAX1586 MAX1587 power-management ICs are optimized for devices using Intel X-Scale micro- processors, including third-generation smart cell phones, PDAs, internet appliances, and other portable devices requiring substantial computing and multime- dia capability at low power. The ICs integrate seven high-performance, low-operating- current power supplies along with supervisory and man- agement 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 val- ues. 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 volt- age management. Linear-regulated outputs are provided for SRAM PLL and USIM supplies. By Maxim Integrated Products