Power Management 40-Pin TQFN EP T/R

The MAX8660/MAX8661 power management ICs (PMICs) power applications processors (APs) 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 are integrated with power-management functions. Two dynamically controlled DC-DC outputs power the processor core and internal memory. Two other DC-DC converters power I/O, memory, and other peripherals. Additional functions include on/off control for outputs, low-battery detection, reset output, and a 2-wire I²C serial interface. The MAX8661 functions the same as the MAX8660, except it lacks the REG1 step-down regulator and the REG7 linear regulator. All step-down DC-to-DC outputs use fast 2MHz PWM switching and tiny external components. They automatically switch from PWM to high-efficiency, light-load operation to reduce operating current and extend battery life. In addition, a forced-PWM option allows low-noise operation at all loads. Overvoltage lockout protects the device against inputs up to 7.5V.

• Optimized for Marvell"s PXA300 and Armada 100 Family of Processors
• Protected to 7.5V-Shutdown Above 6.3V
• Four Synchronous Step-Down Converters
  • REG1, REG2, REG3, REG4
• Four LDO Regulators
  • REG5, REG6, REG7, REG8
• 2MHz Switching Allows Small Components
• Low, 20µA Deep-Sleep Current
• Low-Battery Monitor and Reset Output