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APW7036

Anpec Electronics
Part Number APW7036
Manufacturer Anpec Electronics
Description Advanced Dual PWM Power Controller
Published Mar 30, 2006
Detailed Description APW7036 Advanced Dual PWM Power Controller Features • 2 Regulated Voltage are provided General Description The APW7036...
Datasheet PDF File APW7036 PDF File

APW7036
APW7036

Overview
APW7036 Advanced Dual PWM Power Controller Features • 2 Regulated Voltage are provided General Description The APW7036 provides complete power control and protection for two DC-DC converter optimized in VGA Card applications.
It integrates two PWM controllers , as well as the monitoring and protection function into a single package.
The APW7036 provides simple , single feedback loop , voltage mode control with fast transient response.
The output voltage of the SYNC converter can be precisely regulated to as low as VREF (1.
25V , 1.
5V , 1.
8V and 2.
05V) , with a maximum tolerence of ±1.
0% over temperature.
The APW7036 can provides in excess of 14A of output current for an on-board DC/DC converter.
It can monitors all the output voltage , and a single Power Good signal is issued when the SYNC output is within ±10% of the VREF setting and the ASYNC output levels is above under-voltage levels.
Additional built-in over-voltage protection for the SYNC output uses the lower MOSFET to prevent output voltage above 115% of the VREF setting.
The PWM controller’s over-current function monitor the output current by sensing the voltage drop across the upper MOSFET’s RDS(ON) , eliminating the need for a current sensing resistor .
− SYNC Switching Power Internal Reference Voltage (1.
25V , 1.
5V , 1.
8V and 2.
05V) − ASYNC Switching Power Internal Reference Voltage (1.
5V) • • Simple Single-Loop Control Design − Voltage-Mode PWM Control Excellent Output Voltage Regulation − SYNC Output : ±1% Over Temperature − ASYNC Output : ±3% Over Temperature • Fast Transient Response − High-Bandwidth Error Amplifier − Full 0% to 100% Duty Ratio • Power-Good Output Voltage Monitor • Over-Voltage and Over-Current Fault Monitors • Small Converter Size − Constant Frequency Operation(200kHz) − Programmable Oscillator from 50kHz to 800kHz − Reduce External Component Count • 20Pin , SOIC Package Pin Description UGATE VCC GATE 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 PHASE1 LGATE PGND OCS...


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