厂商:Freescale
类别:16位单片机
厂商:Linear
类别:开关稳压器
厂商:Yageo
类别:芯片电阻
厂商:
类别:保险丝
类别:自恢复PTC
厂商:Panasonic
类别:PhotoMOS(MOSFET输出光电耦合器)
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特点Dual N-Channel MOSFET Synchronous DriveSynchronizable/Programmable Fixed Frequency Wide V IN Range: 3.5V to 36V Operation 5-Bit Digital-to-Analog V OUT Selection: 0.925V to 2.00V Range with 50mV/25mV Steps OPTI-LOOP? Compensation Minimizes C OUT ±1% Output Voltage AccuracyPower Good Output Voltage MonitorOutput Overvoltage Crowbar ProtectionInternal Current FoldbackLatched Short-Circuit Shutdown Timer with Defeat OptionForced Continuous Control PinOptional Programmable Soft-StartRemote Output Voltage SenseAvailable in 24-Lead SSOP Package典型应用描述描述 The LTC?1736 is a synchronous step-down switching regulator controller optimized for CPU power. The output voltage is programmed by a 5-bit digital-to-analog converter (DAC) that adjusts the output voltage from 0.925V to 2.00V according to Intel mobile VID specifications. The 0.8V reference is compatible with future microprocessor generations. The operating frequency (synchronizable up to 500kHz) is set by an external capacitor allowing maximum flexibility in optimizing efficiency. The output voltage is monitored by a power good window comparator that indicates when the output is within 7.5% of its programmed value. Protection features include: internal foldback current limiting, output overvoltage crowbar and optional short-circuit shutdown. Soft-start is provided by an external capacitor that can be used to properly sequence supplies. The operating current level is user-programmable via an external current sense resistor. Wide input supply range allows operation from 3.5V to 30V (36V maximum). Pin defeatable Burst Mode? operation provides high efficiency at low load currents. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values.