MAX1586A/MAX1586B/MAX1586C/MAX1587A/MAX1587C 19-3089 Rev 4 4/09 High-Efficiency, Low-I PMICs with Q Dynamic Core for PDAs and Smart Phones General Description Features The MAX1586/MAX1587 power-management ICs are Six Regulators in One Package optimized for devices using Intel XScale microproces- Step-Down DC-DC for I/O at 1.3A sors, including Smart Phones, PDAs, internet appli- Step-Down DC-DC for Memory at 0.9A ances, and other portable devices requiring substantial Step-Down Serial-Programmed DC-DC for CORE computing and multimedia capability at low power. Up to 0.9A The ICs integrate seven high-performance, low-operating- Three LDO Outputs for SRAM, PLL, and USIM current power supplies along with supervisory and Always-On Output for VCC BATT management functions. Included are three step-down Low Operating Current DC-DC outputs, three linear regulators, and a seventh 60A in Sleep Mode (Sleep LDOs On) always-on output. DC-DC converters power I/O, DRAM, 130A with DC-DCs On (Core Off) and the CPU core. The I/O supply can be preset to 200A All Regulators On, No Load 3.3V or adjusted to other values. The DRAM supply on 5A Shutdown Current the A and C devices is preset for 1.8V or 2.5V, while the MAX1586B DRAM supply is preset for 3.3V or 2.5V. The Optimized for XScale Processors DRAM supply on all parts can also be adjusted with Backup-Battery Input external resistors. The CPU core supply is serial pro- 1MHz PWM Switching Allows Small External grammed for dynamic voltage management and, on C Components devices, can supply up to 0.9A. Linear-regulated out- puts are provided for SRAM, PLL, and USIM supplies. Tiny 6mm x 6mm, 40-Pin and 7mm x 7mm, 48-Pin To minimize quiescent current, critical power supplies Thin QFN Packages have bypass sleep LDOs that can be activated when Ordering Information output current is very low. Other functions include sep- arate on/off control for all DC-DC converters, low-bat- PART TEMP RANGE PIN-PACKAGE tery and dead-battery detection, a reset and power-OK MAX1586AETM -40C to +85C 48 Thin QFN 7mm x 7mm output, a backup-battery input, and a two-wire serial interface. MAX1586BETM -40C to +85C 48 Thin QFN 7mm x 7mm All DC-DC outputs use fast, 1MHz PWM switching and MAX1586CETM -40C to +85C 48 Thin QFN 7mm x 7mm small external components. They operate with fixed-fre- MAX1587AETL -40C to +85C 40 Thin QFN 6mm x 6mm quency PWM control and automatically switch from MAX1587CETL -40C to +85C 40 Thin QFN 6mm x 6mm PWM to skip-mode operation at light loads to reduce Pin Configurations and Selector Guide appear at end of operating current and extend battery life. The core out- data sheet. put can be forced into PWM mode at all loads to mini- mize noise. A 2.6V to 5.5V input voltage range allows Simplified Functional Diagram 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- MAIN BATTERY IN MAX1586 battery and dead-battery comparators. The MAX1586 is MAX1587 BACKUP available in a 7mm x 7mm, 48-pin thin QFN package. VCC IO 3.3V V1 BATTERY BKBT Applications VCC MEM 2.5V V2 PDA, Palmtop, and Wireless Handhelds VCC CORE V3 0.8V TO 1.3V MR Third-Generation Smart Cell Phones VCC PLL 1.3V V4 RSO nRESET Internet Appliances and Web-Books nVCC FAULT POK V5 VCC SRAM 1.1V nBATT FAULT DBO VCC USIM V6 0V, 1.8V, 3.0V SYS EN ON1-2 PWR EN V7 ON3-6 VCC BATT Intel XScale is a registered trademark of Intel Corp. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim s website at www.maxim-ic.com. EVALUATION KIT AVAILABLEHigh-Efficiency, Low-I PMICs with Q Dynamic Core for PDAs and Smart Phones ABSOLUTE MAXIMUM RATINGS IN, IN45, IN6, MR, LBO, DBO, RSO, POK, SCL, SDA, LX3 Continuous Current........................................-0.9A to +0.9A PG1, PG2, PG3 to GND.........................................-0.3V to +0.3V BKBT, V7, SLP, SRAD, PWM3 to GND...............-0.3V to +6V REF, CC , ON , FB , DBI, LBI, V1, V2, RAMP, BYP, V1, V2, V4, V5, V6 Output Short-Circuit Duration.......Continuous Continuous Power Dissipation (T = +70C) MR to GND ...........................................-0.3V to (V + 0.3V) IN A 6mm x 6mm 40-Pin Thin QFN PV1, PV2, PV3, SLPIN to IN...................................-0.3V to +0.3V V4, V5 to GND ..........................................-0.3V to (V + 0.3V) (derate 26.3mW/C above +70C)...........................2105mW IN45 7mm x 7mm 48-Pin Thin QFN V6 to GND ..................................................-0.3V to (V + 0.3V) IN6 PV1 to PG1 ............................................................-0.3V to +6.0V (derate 26.3mW/C above +70C)...........................2105mW Operating Temperature Range ...........................-40C to +85C PV2 to PG2 ............................................................-0.3V to +6.0V Junction Temperature......................................................+150C PV3 to PG3 ............................................................-0.3V to +6.0V LX1 Continuous Current....................................-1.30A to +1.30A Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C LX2 Continuous Current........................................-0.9A to +0.9A Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = 3.6V, V = 3.0V, V = 1.1V, V = 1.35V, circuit of Figure 5, T = 0C to +85C, unless otherwise noted. Typical values IN BKBT LBI DBI A are at T = +25C.) A PARAMETER CONDITIONS MIN TYP MAX UNITS PV1, PV2, PV3, SLPIN, IN Supply PV1, PV2, PV3, IN, and SLPIN must connect together 2.6 5.5 V Voltage Range externally IN45, IN6 Supply Voltage Range 2.4 5.5 V V rising 2.25 2.40 2.55 IN Undervoltage-Lockout (UVLO) IN V Threshold V falling 2.200 2.35 2.525 IN MAX1586 32 Only V7 on, V below IN DBI threshold V = 3.0V IN MAX1587 5 MAX1586 130 REG1 and REG2 on in No load (I + PV1 switch mode, REG3 off MAX1587 130 I + I + I + PV2 PV3 IN Quiescent Current A I + I + SLPIN IN45 MAX1586 60 REG1 and REG2 on in I ) IN6 sleep mode, REG3 off MAX1587 60 MAX1586 225 All REGs on MAX1587 200 ON1 = 0 4 BKBT Input Current A ON1 = IN 0.8 REF Output Voltage 0 to 10A load 1.2375 1.25 1.2625 V SYNCHRONOUS-BUCK PWM REG1 REG1 Voltage Accuracy FB1 = GND, 3.6V V 5.5V, load = 0 to 1300mA 3.25 3.3 3.35 V PV1 FB1 used with external resistors, 3.6V V 5.5V, PV1 FB1 Voltage Accuracy 1.231 1.25 1.269 V load = 0 to 1300mA FB1 Input Current FB1 used with external resistors 100 nA Error-Amplifier Transconductance Referred to FB 87 S Load = 800mA 180 280 Dropout Voltage (Note 1) mV Load = 1300mA 293 450 2 MAX1586A/MAX1586B/MAX1586C/MAX1587A/MAX1587C