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AIC1388

DDR Termination Regulator

FEATURES
  • AVIN Input Voltage Range: 2.375V to 5.5V
  • PVIN Input Voltage Range: 1.1V to AVIN
  • 3A Source and Sink Current Capability
  • Support DDR / DDRII / DDRIII/ Low Power DDRIII / DDRIV Requirements
  • Low Output Voltage Offset, ±20mV
  • High Accuracy Output Voltage at Full-Load
  • Stable with 22uF Ceramic Output Capacitor
  • Low External Component Count
  • No External Resistor Required
  • Built in Soft Start, UVLO and OCP Protection
  • Thermal Shutdown Protection
  • SOP-8E Package
  • RoHS Compliant and Green Package
APPLICATIONS
  • Desktop PCs, Notebooks and Workstations
  • Graphic Cards
  • Set Top Boxes, Digital TVs, Printers
  • DDR/II/III Termination Voltage Supply
DESCRIPTION
The AIC1388 linear regulator is designed to achieve 3A source and sink current for termination of DDR / DDRII / DDRIII. And it can deliver 2A continue current for termination of DDRIV. The AIC1388 contains a high-speed operational amplifier to supply superior load transient response. It also includes a VSENSE to
provide excellent load regulation and VREF output as a reference for the chipset and
DIMMs. The AIC1388 supply accurate VTT and VREF without external resistors that save PCB areas.
The AIC1388 also features an active low shutdown pin that provides Suspend To RAM (STR) functionality. The VTT will remain high impedance when in shutdown, but VREF will keep active. The advantage of power saving can be obtained through low quiescent current.
Built-in current limiting in source and sink mode, on-chip thermal shutdown protection to against fault conditions.
The AIC1388 is available in SOP-8E package
TYPICAL APPLICATION


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