
Anpec Electronics
General Description
The APW7098, two-phase PWM control IC, provides a precision voltage regulation system for advanced graphic microprocessors in graphics car d applications. The i ntegrati on of power MOSFET drivers into the controller IC and reduces the number of external parts for a cost and space saving power management solution.
FEATUREs
• Voltage-Mode Operation with Current Sharing
- Adjustable Feedback Compensation
- Fast Load Transient Response
• Operate with 8V~13.2VCC Supply V oltage
• Selectable External or Internal 0.6V Reference
- ±1.5% Accuracy Over Temperature
• Support Single- and Two-Phase Operations
• 5VCC and Buffered Reference Outputs
• 8~12V Gate Drivers with Internal Bootstrap
Diode
• Lossless Inductor DCR Current Sensing
• Selectable Operation Frequency
- 150k/300k/400kHz per Phase
• Power-OK Indicator Output
- Regulated 1.5V on REFOUT/POK
• Adjustable Over-Current Protection (OCP)
• Accurate Load Line (DROOP) Programming
• Adjustable Soft-Start
• Over-Voltage Protection (OVP)
• Under-Voltage Protection (UVP)
• Over-Temperature Protection (OTP)
• QFN4x4 24-Lead Package (QFN4x4-24A)
• Lead Free and Green Devices Available (RoHS Compliant)
APPLICATIONs
• Graphics Card GPU Core Power Supply
• Motherboard Chipset or DDR SDRAM Core Power Supply
• On-board High Power PWM Converter with Out put Current up to 60A