降压稳压器

ETA1483

The ETA1483 is a wide input range, high-efficiency, DC-to-DC step-down switching regulator, capable of delivering up to 2A of output current. Current mode PWM control allows the use of small external components, such as ceramic input and output caps, as well as small inductors, while still providing low output ripples. On top of the integrated internal synchronous rectifier that eliminates external Schottky diode, ETA1483 also employs a proprietary control scheme that switches the device into a power save mode during light load, thereby extending the range of high efficiency operation. Therefore, ETA1483 is a much superior solution in comparison to other competitions in terms of efficiency and cost. Cycle-by-cycle current limit provides output short circuit protection and an input OVP function guards ETA1483 against possible input voltage surge. Overall, ETA1483 is a highly efficient and robust solution for DC-DC step-down applications that requires wide input ranges.

ETA1483 is housed in a SOP8 Package

FEATURES
Wide Input Operating Range from 3.6V to 18V
High Efficiency:
Up to 90%at Light Load
Up to 95% at Heavy Load
Capable of Delivering 2A
Input OVP at 20V
No External Schottky Diode Needed
Current Mode control
0.923V Reference for Low Output voltages
Logic Control Shutdown
Thermal shutdown and UVLO
Available in SOP8

APPLICATIONS
LCD TVs
Notebook computers
FPGA power supplies
LED drivers
Car Charging Device

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