KIT34704BEPEVBE评估板采用多通道电源管理IC（PMIC）MC34704A，用于处理各种多媒体应用微处理器的电源管理需求。Its ability to provide either 5 or 8 independent output voltages with a single input power supply (2.7 and 5.5V) together with its high efficiency, make it ideal for portable devices powered up by Li-Ion/polymer batteries or for USB powered devices as well.The 34704 is housed in a 7x7mm, Pb-free, QFN56 and is capable of operating at a switching frequency of up to 2MHz. This makes it possible to reduce external component size and to implement full space efficient power management solutions.Experience Freescale's unique and innovative virtual lab training. Features
??? 8 DC/DC (34704A) or 5 DC/DC (34704B) switching regulators with up to ±2% output voltage accuracy
??? Dynamic voltage scaling on all regulators.
??? Selectable voltage mode control or current mode control on REG8
??? I2C programmability
??? Output under-voltage and over-voltage detection for each regulator
??? Over-current limit detection and short-circuit protection for each regulator
??? Thermal limit detection for each regulator, except REG7
??? Integrated compensation for REG1, REG3, REG6, and REG8
??? 5?A maximum shutdown current (All regulators are off, 5.5V VIN)
??? True cutoff on all of the boost and buck-boost regulators
#板卡评测
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2012-10-09
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