Power-Management IC Suits Hand-Held Devices Austriamicrosystems has introduced the AS3607, a highly integrated power-management IC. This PMIC is suitable for portable navigation devices, portable media players, e-dictionaries, GPS devices, PDAs and a range of battery-powered hand-held devices using ARM-based processors. The output voltage and the timing of all regulators of the AS3607 are programmed via software. With the software and demo board, the OTP memory of the AS3607 can easily be programmed, enabling fast prototype runs. The slope of the ramp can be set for the step-down converters. The user can program the startup sequence with timing steps of 1 or 4ms, insuring that all ARM-based processors can easily be covered. In order to control other parts of the system, the general-purpose I/O pins can be programmed to a specific timing. The PMIC and application processor manage and optimise the power rails within the system to maximise battery charge. The AS3607 PMIC integrates ...
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