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FAN6550

Features: • Can source and sink up to 2A continous, 3A peak• No heatsink required• Integrated Power MOSFETs• Generates termination voltages for DDR SDRAM• VREF input available for external voltage divider• Separate voltages for VCCQ and PVDD• Buffered V RE...

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SeekIC No. : 004340441 Detail

FAN6550: Features: • Can source and sink up to 2A continous, 3A peak• No heatsink required• Integrated Power MOSFETs• Generates termination voltages for DDR SDRAM• VREF input av...

FAN6550 Data Sheet

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Part Number:
FAN6550
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Can source and sink up to 2A continous, 3A peak
• No heatsink required
• Integrated Power MOSFETs
• Generates termination voltages for DDR SDRAM
• VREF input available for external voltage divider
• Separate voltages for VCCQ and PVDD
• Buffered V REF output
• VOUT of ±3% or less at 2A
• Minimum external components
• 0°C to 70°C operating range
• Shutdown for standby or suspend mode operation
• Thermal Shutdown130ºC


Pinout

Connection Diagram


Specifications

Parameter Min Max Unit
PVDD   4.5 V
Voltage on Any Other Pin GND 0.3 VIN+ 0.3 V
Average Switch Current (IAVG)   2.0 A
Junction Temperature   150 °C
Storage Temperature Range -65 150 °C
Lead Temperature (Soldering, 10 sec)   300 °C
Thermal Resistance (JA)   30 °C/W
Output Current, Source or Sink (peak)   3.0
A



Description

The FAN6550 switching regulator is designed to convert voltage supplies ranging from 2.3V to 4V into a desired output voltage or termination voltage for DDR SDRAM memory. The FAN6550 can be implemented to produce regulated output voltages in two different modes. In the default mode, when the VREF pin is open, the FAN6550 output voltage is 50% of the voltage applied to VCCQ. The FAN6550 can also be used to produce various user-defined voltages by forcing a voltage on the VREF IN pin. In this case, the output voltage follows the input VREFIN voltage. The switching regulator is capable of sourcing or sinking up to 2A of current while regulating an output VTT voltage to within 3% or less. Transient output currents of ±3A can also be accommodated.

The FAN6550 can also be used in conjunction with series termination resisitors to provide an excellent voltage source for active termination schemes of high speed transmission lines as those seen in high speed memory buses and distributed
backplane designs.




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