APW7015 Datasheet | Anpec Electronics Coropration

Advanced PWM and Dual Linear Power Control Features - 3 Regulated Voltage are provided General Description The APW7015 integrates a PWM controller and Dual linear controller, as well as the monitoring and protection functions into a single package, which provides three controlled power outputs with over-voltage and over-current protections. The PWM controller regulates the DDR reference voltage with a synchronous-rectified buck converter. The linear controller regulates power for microprocessor core voltage and Memory Voltage. TTL patible 3-bit digital-to-analog converter (DAC) that adjusts the output voltage from 1.3VDC to 1.65VDC in 0.05V steps is included in APW7015. The precision reference and voltage-mode PWM control provide ±2% static regulation. The linear controller drives an external N-channel MOSFET to provide adjustable voltage. The APW7015 monitors all the output voltages, and a single Power Good signal is issued when the PWM Voltage is within 10% of the DAC setting and the other output levels are above their under-voltage thresholds. Additional built-in over-voltage protection for the PWM output uses the lower MOSFET to prevent output voltages above 115% of the DAC setting. The PWM over-current function monitors the output current by using the voltage drop across the upper MOSFET’s RDS(ON) ,eliminating the need for a current sensing resistor. .. - Switching Power for VTT(1.25V) - Linear1 Regulator for FBVDDQ(2.5V) - Linear2 Regulator for NVVDD(2.05V) Simple Single-Loop Control Design - - - Voltage-Mode PWM Control Excellent Output Voltage Regulation - PWM Output: ±2% Full Temperature - Linear Output: ±3% Full Temperature - Fast Transient Response - High-Bandwidth Error Amplifier - Full 0% to 100% Duty Ratio - TTL-patible 3-Bit Digital-to-Analog Output Voltage Selection - 0.05V Steps from 1.3VDC to 1.65VDC - Power-Good Output Voltage Monitor - Over-Voltage and Over-Current Fault - Monitors Small...