Anpec Electronics APW7057
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.| Part No. | APW7057 |
|---|---|
| Datasheet | APW7057 Download |
| Manufacturer |  Anpec Electronics |
| Description | High Power Step-Down Synchronous DC/DC Controller |
| Buy | Stock & Price |
FEATURES
● 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 Range - 0% to 100%
● Internal Loop Compensation
● Internal Soft Start - Typical 2ms
● Programmable Over-Current Protection - Lossless Sensing Using MOSFET RDS (ON)
● Under-Voltage Protection
● Drives External N-Channel MOSFETs
● Shutdown Control
● Small SOP-8 Package
APPLICATIONS
● Motherboard● Graphics Cards
● Cable or DSL Modems, Set Top Boxes
● DSP Supplies
● Memory Supplies
● 5V Input DC-DC Regulators
● Distributed Power Supplies
GENERAL DESCRIPTION
Internal loop compensation is optimized for f
