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