厂商：Freescale
类别：16位单片机
厂商：Atmel
类别：ATmega系列单片机
类别：AVR32系列单片机
厂商：Teralux
类别：100G QSFP28 Direct Attach Cable (DAC)
厂商：Linear
类别：超级电容器充电器
类别：线性稳压器（LDO ）
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特点Three Regulated Outputs: Core, I/O and CLK in One PackageIntegrated Intel Mobile 5-Bit VID DACNo External Current Sense ResistorsAll N-Channel External MOSFET Architecture550kHz Switching Frequency Minimizes External Component Size and CostIntegrated 150mA LDO Linear RegulatorExcellent DC Accuracy: 1.25% for Core, 2% for I/O and CLK SuppliesPGOOD Flag Monitors All Three OutputsHigh Efficiency Over Wide Load Current RangeLow Shutdown Current: < 100μA Switchers Run Out-of-Phase to Minimize C IN Small 28-Pin Narrow SSOP Package典型应用描述描述 The LTC?1705 is a complete power supply controller for Intel Mobile Pentium processors. It includes two switching regulator controllers, each designed to drive a pair of N-channel MOSFETs in a voltage mode feedback, synchronous buck configuration, to provide the core and I/O supplies. The core controller includes a 5-bit DAC that conforms to the Intel Mobile VID specification. The IC also includes a low dropout linear regulator (LDO) that delivers up to 150mA of output current to provide the CLK supply. The LTC1705 uses a constant-frequency 550kHz PWM architecture, minimizing external component size and cost, as well as optimizing load transient performance. It provides better than 1.25% DC accuracy at its core output, and 2% at I/0 and CLK outputs. The high performance feedback loops allow the circuit to keep total output regulation within ±5% under all transient conditions. An open-drain PGOOD flag indicates that all three outputs are within ±10% of their regulated values. A shutdown circuit disables all three outputs if the RUN/SS pin is pulled to ground. In this mode, the LTC1705 supply current drops to below 100μA.