APW7047, APW7047KC, APW7047KC-TR Selling Leads, Datasheet
MFG:ANPEC Package Cooled:SOP D/C:07+
APW7047, APW7047KC, APW7047KC-TR Datasheet download
Part Number: APW7047
MFG: ANPEC
Package Cooled: SOP
D/C: 07+
APW7047, APW7047KC, APW7047KC-TR
- Table of contents:
Info of APW7047
Info of APW7047KC
Info of APW7047KC-TR
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About APW7047
PDF/DataSheet Download
Datasheet: APW7047
File Size: 158105 KB
Manufacturer: ANPEC [Anpec Electronics Coropration]
Download : Click here to Download
About APW7047KC-TR
PDF/DataSheet Download
Datasheet: APW7047KC-TR
File Size: 158105 KB
Manufacturer: ANPEC [Anpec Electronics Coropration]
Download : Click here to Download
About APW7047KC-TR
PDF/DataSheet Download
Datasheet: APW7047KC-TR
File Size: 158105 KB
Manufacturer: ANPEC [Anpec Electronics Coropration]
Download : Click here to Download
APW7047 General Description
The APW7047 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. One PWM converter (PWM1) regulates the VCORE(1.5V) for the GPU with a SYNC. buck converter. The other standard buck converter (PWM2) regulates the VMEM(2.5V) for the power of DDR memory. 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.
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.
APW7047 Maximum Ratings
| Symbol | Parameter | Rating | Unit |
| Vcc | Supply Voltage | 15 | V |
| VI , VO | Input , Output or I/O Voltage | GND -0.3 V to VCC +0.3 | V |
| TA | Operating Ambient Temperature Range | Range 0 to 70 | °C |
| TJ | Junction Temperature Range | Range 0 to 125 | °C |
| TSTG | Storage Temperature Range | Range -65 to +150 | °C |
| TS | Soldering Temperature | 300 ,10 seconds | °C |
APW7047 Features
• 3 Regulated Voltages are provided− SYNC. Buck Converter for VCORE(1.15V~1.50V)− Standard Buck Converter for VMEM(2.40V~2.75V)−Linear Controller with SOURCE-SINK Regulation for VTT(1.25V)
• Simple Single-Loop Control Design− Voltage-Mode PWM Control
• Excellent Output Voltage Regulation− VCORE Output : ±2% Over Temperature− VMEM Output : ±2% Over Temperature− VTT Output : 1/2 VIN ±25mV Over Temperature Min. VIN = 1.7V
• Fast Transient Response− Built-in Feedback Compensation− Full 0% to 100% Duty Ratio
• Over-Voltage and Over-Current Fault Monitor
• Constant Frequency Operation(200kHz)
• 24 pins, SOIC Package
• Simple Single-Loop Control Design− Voltage-Mode PWM Control
• Excellent Output Voltage Regulation− VCORE Output : ±2% Over Temperature− VMEM Output : ±2% Over Temperature− VTT Output : 1/2 VIN ±25mV Over Temperature Min. VIN = 1.7V
• Fast Transient Response− Built-in Feedback Compensation− Full 0% to 100% Duty Ratio
• Over-Voltage and Over-Current Fault Monitor
• Constant Frequency Operation(200kHz)
• 24 pins, SOIC Package
APW7047 Typical Application
• M/B DDR Power Regulation
• AGP/PCI Graphics Power Regulation
• SSTL-2 Termination
• AGP/PCI Graphics Power Regulation
• SSTL-2 Termination
APW7047 Connection Diagram
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