ETA1089D3M 钰泰2.5A高效同步升压转换器IC

　　DESCRIPTION

　　ETA1089 is an ETA Solutions' high efficiency, high frequency synchronous Step-Up converter, capable of delivering output current up to 2.5A at a 5V output from input as low as 3.3V. With a low Rdson Power MOS and a built-in synchronous rectifier, its efficiency can be as high as 93% at a 5V/2.1A load. This greatly minimizes power dissipation and reduces heat on the 1C, making it ideal for applications that require small board space and have stringent temperature constraints, such as power banks and mobile devices. ETA1089 also integrates an USB emulator that provides correct electrical signature on the D+/D- for charging compliant devices. ETA1O89 also incorporates ETA Solutions' True-Shutoff®technology that protects against overload and short-circuit conditions. All of these features are integrated in a tiny DFN3x3-12 package. With 1MHz switching frequency, small external input and output capacitors and inductor can be used.