The CM8501/A is a low cost switching regulator designed to provide a desired output voltage or termination voltage for various applications by converting voltage supplies ranging from 2.0V to 4.0V. The CM8501 can be implemented to produce regulated output voltages in two different modes. In the default mode, when the VIN/2 pin is open, the output voltage is 50% of the VCCQ. The CM8501 can also be used to produce various user-defined voltages by forcing a voltage on the VIN/2 pin. In this case, the output voltage follows the VIN/2 pin input voltage. The regulated output voltage of CM8501A is internally set to be 50% of the applied VCCQ.The switching regulator is capable of sourcing or sinking up to 1.5A of current while regulating an output V TT voltage to within 3% or less.

The CM8501/A provides low profile 8-pin PSOP package to save system space as well as 16-pin PSOP and PTSSOP packages that are pin-to-pin compatible to the previous CM8500.

---------------------------------------------------------------------------------------------------------------------------------------------


Features

• 8-pin PSOP, 16 pin PTSSOP and 16 pin PSOP power packages
• Source and sink up to 1.5A, no heat sink required
• Integrated Power MOSFETs
• Output voltage can be programmed by external resistors(CM8501)
• Separate voltages for VCCQ and PVDD
• V OUT of ±3% or less at 1.5Au Minimum external components
• Shutdown for standby or suspend mode operation
• Thermal shutdown protection
• Soft start

---------------------------------------------------------------------------------------------------------------------------------------------

Applications

• Mother Board
• PCI/AGP Graphics
• Game/ Play Station
• Set Top Box
• IPC
• SCSI-III Bus terminator
• Buck Converter