AP3583A中文资料buck-controller数据手册Diodes规格书

描述 Description

The AP3583/A is a simple single-phase synchronous buck controller. It operates from 5V or 12V supply voltage and delivers high quality output voltage as low as 0.6V. This device operates at fixed 200kHz (AP3583) or 300kHz (AP3583A) frequency and provides an optimum compromise between efficiency, external component size and cost.

With integrated linear regulator bootstrap diode, and N-Channel MOSFET gate drives, the AP3583/A can reduce external component count and board space requirements.

The AP3583/A supports both tracking mode and stand-alone mode operation. The output voltage is tightly regulated to the external reference voltage from 0.4V to 3V at tracking mode or internal 0.6V reference at stand-alone mode.

Other features include internal soft-start, under voltage protection, over current protection and shutdown function. With aforementioned functions, this part provides customers a compact, high efficiency, well-protected and cost-effective solutions.

The AP3583/A is available in PSOP-8 package.

特性 Features

Supply Voltage: 5V/12VVIN Input Range: 3.0V to 13.2V0.6V to 80% of VIN Output RangeInternal Reference: 0.6VSupport Tracking Mode and Stand-alone ModeSimple Single-loop ControlVoltage-mode PWM ControlDuty Cycle: 0% to 80%Fast Transient ResponseFixed Oscillator Frequency: 200/300kHzLossless, Programmable Over Current Protection
(Uses Lower MOSFET RDS(ON) )Start-up into Pre-biased OutputBuilt-in Thermal ShutdownBuilt-in Soft-startOver Current/Voltage ProtectionUnder Voltage ProtectionIntegrated Boot Diode

应用 Application

Power Supplies for Microprocessors/PeripheralsPCs, Embedded Controllers, Memory SuppliesDSP and Core Communications Processor SuppliesSubsystem Power SuppliesPCI, AGP, Graphics Cards and Digital TVSSTL-2 and DDR/2/3 SDRAM Bus Termination SupplyCable Modems, Set Top Boxes, and DSLModemsIndustrial Power Supplies and General Purpose Supplies5V/12V Input DC-DC RegulatorsLow-voltage Distributed Power Supplies