APW7057 controller equivalent, high power step-down synchronous dc/dc controller.
* Operates from +5V Input
* 0.8V Internal Reference Voltage
- ±1.5% Accuracy Over Line, Load and Temp.
*
0.8V to V Output Range CC
* Full Duty Cycle .
* Motherboard
* Graphics Cards
* Cable or DSL Modems, Set Top Boxes
* DSP Supplies
* Memory Supplies.
The APW7057 is a 300kHz constant frequency voltage mode synchronous switching controller that drives external N-channel MOSFETs. When the input supply drops close to output, the upper MOSFET remains on, achieving 100% duty cycle. Internal loop compen.
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