MAX8660, MAX8660A, MAX8661 High-Efficiency, Low-IQ, PMICs With Dynamic Voltage Management For Mobile Applications

The MAX8660 MAX8661 Power Management ICs (PMICs) power 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 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 IC 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 curre 53a nt 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.
By Maxim Integrated Products