深圳市科瑞芯电子有限公司

ETA（钰泰） ETA8291D3K DFN3x3-10 双18V, 2A，高效率同步降压变频器

Dual 18V, 2A, High Efficiency Synchronous Step-Down Converter

ETA8291 is a Power Management Unit(PMU) with 2 channels of wide input range, high efficiency DC-to-DC step-down switching regulators. Each channel is capable of delivering up to 2A of output current.ETA8291 is a Power Management Unit(PMU) with 2 channels of wide input range, high efficiency DC-to-DC step-down switching regulators. Each channel is capable of delivering up to 2A of output current. It adopts an adaptive COT control scheme that enables very fast transient response and provides a very smooth transition when the output varies from light load to heavy load.
During light load, ETA8291 goes into a PFM mode that saves switching loss to achieve high efficiency. The adaptive COT control also maintains a constant switching frequency across line and load.
ETA8291 is available in DFN3x3-10 package.

Features
Wide Input Range: 3.5V-18V
Dual 2A Max Output Current
Adaptive COT Control
Ultra-fast Load Transient Response
High Efficiency PFM mode at Light Load
High Efficiency Synchronous Operation
Low Rdson Internal Power FETs
No External Compensation Needed
Thermal Shutdown and UVLO
RoHS Compliant

Applications
Set Top Box
xDSL Modem
LCD TV