FAN6555MX Description

The FAN6555MX switching regulator is designed to convert voltage supplies ranging from 2.3V to 4V into the desired output voltage or termination voltage for DDR SDRAM memory. The FAN6555MX can be implemented to produce regulated output voltages in two different modes. In the default mode when the VREF pin is open, the FAN6555MX output voltage is 50% of the voltage applied to VCCQ. The FAN6555MX can also be used to produce various user-defined voltages by forcing voltage on the VREF IN pin. In this case, the output voltage follows the input VREF IN voltage. 

FAN6555MX Features

Can source and sink up to 2A continuously. 3A peak

No heatsink required

Integrated Power MOSFETs

Generates termination voltages for DDR SDR AM.

VREF input available for the external voltage divider

Separate voltages for VCCQ and PVDD

Buffered VREF output

VOUT of+3% or less at 2A

Minimum external components

16-pin SOIC package

-40°C to +859C operating temperature range

Shutdown for standby or suspend mode operation

Thermal Shutdown ≈130°C 

FAN6555MX Applications

Automotive 

Hybrid, electric & powertrain systems 

Enterprise systems 

Enterprise projectors 

Personal electronics 

Home theater & entertainment