MAX8660E

Product Summary

The MAX8660E power management IC (PMIC) powers 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 of the MAX8660E are integrated with powermanagement functions. Two dynamically controlled DCDC outputs power the processor core and internal memory. Two other DC-DC converters power I/O, memory, and other peripherals. Additional functions of MAX8660E include on/off control for outputs, low-battery detection, reset output, and a 2-wire I2C serial interface. The MAX8660E functions the same as the MAX8660, except it lacks the REG1 step-down regulator and the REG7 linear regulator.

Parametrics

MAX8660E absolute maximum ratings: (1)IN, IN5, IN6, IN67, EN2, EN34, EN5, LBO, RSO, MR, SET1, SET2, V1, V2, V3, V4, SCL, SDA, SRAD to AGND: -0.3V to +7.5V; (2)LBF, LBR, EN1, RAMP to AGND: -0.3V to (VIN + 0.3V); (3)V8 to AGND: -0.3V to (VIN8 + 0.3V); (4)V5 to AGND: -0.3V to (VIN5 + 0.3V); (5)V6, V7 to AGND: -0.3V to (VIN67 + 0.3V); (6)PV1 to PG1: -0.3V to +7.5V; (7)PV2 to PG2: -0.3V to +7.5V; (8)PV3 to PG3: -0.3V to +7.5V; (9)PV4 to PG4: -0.3V to +7.5V; (10)PV, PV1, PV2, PV3, PV4, IN8 to IN: -0.3V to +0.3V; (11)LX1 Continuous RMS Current: 2.3A; (12)LX2 Continuous RMS Current: 2.0A; (13)LX3 Continuous RMS Current: 2.6A; (14)LX4 Continuous RMS Current: 1.0A; (15)PG1, PG2, PG3, PG4, EP to AGND: -0.6V to +0.6V; (16)GND to AGND: -0.3V to +0.3V; (17)All REGx Output Short-Circuit Duration: Continuous; (18)Continuous Power Dissipation (TA = +70℃); (19)40-Pin Thin QFN (derate 35.7mW/℃ above +70℃): 2857mW; (20)Operating Temperature Range: -40℃ to +85℃; (21)Junction Temperature: +150℃; (22)Storage Temperature Range: -65℃ to +150℃; (23)Lead Temperature (soldering, 10s): +300℃.

Features

MAX8660E features: (1)Optimized for Intel XScale Processors; (2)Protected to 7.5V—Shutdown Above 6.3V; (3)Four Synchronous Step-Down Converters REG1, REG2, REG3, REG4; (4)Four LDO Regulators REG5, REG6, REG7, REG8; (5)2MHz Switching Allows Small Components; (6)Low, 20μA Deep-Sleep Current; (7)Low-Battery Monitor and Reset Output.

Diagrams