APW7068(2009) Datasheet PDF - Anpec Electronics

General Description
The APW7068 integrates synchronous buck PWM, linear controller, and 0.8V Reference Out Voltage, as well as the monitoring and protection functions into a single package. The fixed 300kHz switching frequency synchronous PWM controller drives dual N-channel MOSFETs, which provides one controlled power output with overvoltage and over-current protections. Linear controller drives an external N-channel MOSFET with under-voltage protection.

FEATUREs
• Two Regulated Voltages and REF_OUT
    - Synchronous Buck Converter
    - Linear Regulator
    - REF_OUT = 0.8V±1% with 3mA Source Current
• Single 12V Power Supply Required
• Excellent Both Output Voltage Regulation
    - 0.8V Internal Reference
    - ±1% Over Line Voltage and Temperature
• Integrated Soft-Start for PWM and Linear Outputs
• 300KHz Fixed Switching Frequency
• Voltage Mode PWM Control Design and Up to 89% (Typ.) Duty Cycle
• Under-Voltage Protection Monitoring Linear Output
• Over-Voltage Protection Monitoring PWM Output
• Over-Current Protection for PWM Output
    - Sense Low-side MOSFET’s RDS(ON)
• SOP-14, SSOP-16 and Compact QFN4x4-16 packages
• Lead Free and Green Devices Available (RoHS Compliant)

APPLICATIONs
• Graphic Cards