Description

The FAN6555 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 FAN6555 can be implemented to produce regulated output voltages in two different modes. In the default mode, when the VREFpin is open, the FAN6555 output voltage is 50 of the voltage applied to VCCQ.

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 VCCQand PVDD

• Buffered VREF output

• VOUT of ±3 or less at 2A

• Minimum external components

• 16-pin SOIC package

• -40°C to +85°C operating temperature range

• Shutdown for standby or suspend mode operation

• Thermal Shutdown ≈130ºC