CATAT71991

CATAT71991 2.0A 380KHz 23V High Efficiency Step-Down DC/DC Converter Confidentiality Statement: This Data Sheet (including any attachments) is for the sole use of the intended recipient(s) and contains confidential, proprietary and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please immediately destroy all copies of the original message. 2.0A 380KHz 23V High Efficiency Step-Down DC/DC Converter CAT71991 General Description The CAT71991 is a high efficiency and up to 2A output current step-down DC/DC converter series that integrates a low on resistance NMOS on high side. Including on the substrate with the listed features is a high performance trans-conductance error amplifier that provides tight voltage regulation and accuracy under transient conditions. An under voltage lockout circuit is built in to prevent start up until the input voltage reaches to 4.75V. Other features include an over current protection and thermal shutdown. The CAT71991 is available in an 8 pins SOIC package. Application ‹ Set-Top-Box, DVD, LCD Displays ‹ High Power LED Power Supply ‹ Distributed Power System ‹ Data comm. xDSL CPE Pin Configuration Features ‹ High Efficiency up to 92% ‹ 4.75V to 23V Wide Input Voltage Range ‹ Output Adjustable from 1.23 to 17V ‹ 2.0A Output Current ‹ 380kHz constant Frequency Operation ‹ Current Mode Control ‹ Over-temperature Protection ‹ Over Current Protection ‹ Under Voltage...