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APW7046 Datasheet PDF

Anpec Electronics APW7046

The APW7046 provides the power controls and protections for three output voltages on AGP/PCI Graphic Card applications. It integrates two PWM controllers , one SOURCE-SINK linear controller, as well as the monitor and protection functions into a single package. The other standard buck converter (PWM2) regulates the VMEM(2.5V) for the power of DDR memory.
Part No. APW7046
Datasheet APW7046 Download
Manufacturer
Anpec Electronics
Description Dual Advanced PWM and Source-Sink Linear Controller
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APW7046 datasheet page 1 preview

FEATURES

● 3 Regulated Voltages are provided

GENERAL DESCRIPTION

One PWM converter (PWM1) supplies the VCORE(1.5V) for the GPU with a standard buck converter. The SOURCE-SINK linear controller control two external MOSFETs to be a linear regulator with the capability of sourcing and sinking current. It regulates the VTT (1.25V) power for DDR Termination voltage. Additional built-in over-voltage protection (OVP) will be started when the VCORE or VMEM output is above 115% of each DAC setting (VCORE and VMEM). OVP function will shutdown the all output voltages until re-powering on the IC. For each PWM converter, the over-current function monitors the output current by sensing the voltage drop across the MOSFET‘s rDS(ON) , eliminating the need for a current sensing resistor. − Standard Buck Converter for VCORE (1.15~1.50V) − Standard Buck Converter for VMEM (2.40~3.15V) −Linear Controller with SOURCE-SINK Regulation for VTT(1.25V)
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● Simple Single-Loop Control Design − Voltage-Mode PWM Con...
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