CM8501C
1.5A B
US
T
ERMINATOR
GENERAL DESCRIPTION
The CM8501C 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 4.5V. The CM8501C 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 CM8501C 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
CM8501C 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 CM8501C provides low profile 8-pin PSOP package to
save system space.
FEATURES
Patent Filed #6,452,366
8-pin SOP packages
Source and sink up to 1.5A, no heat sink required
Peak Current to 3A
Integrated Power MOSFETs
Output voltage can be programmed by external resistors
Separate voltages for VCCQ and PVDD
V OUT of ±3% or less at 1.5A
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
PIN CONFIGURATION
SOP-8 (S08)
Top View
1
2
3
4
VCCA
VCCQ
AGND
SD
PVDD
VL
PGND
VFB
8
7
6
5
2006/10/11
Rev. 1.2
Champion Microelectronic Corporation
Page 1
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
