CEP8118降压DCDCCEP8118降压DCDC.pdf

CEP8118 Rev 1.0, Sep, 2015 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter FEATURES APPLICATIONS  42V Input Voltage Surge  Car Charger/ Adaptor  40V Steady State Operation  Rechargeable Portable Devices  Up to 3.5A output current  General-Purpose CC/CV Supply  Output Voltage 2.5V to 8.5V  Resistor Programmable − Current Limit from 1.5A to 3.5A − Cable Compensation from 0Ω to 0.4Ω  ±10% CC Accuracy − Compensation of Input /Output Voltage Change GENERAL DESCRIPTION − Temperature Compensation CEP8118 is a wide input voltage, high efficiency CC  2% Feedback Voltage Accuracy step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant  Up to 94% Efficiency Output Current) mode. CEP8118 provides up to 3.5A  125kHz Switching Frequency Eases EMI Design output current at 125kHz switching frequency.  Advanced Feature Set CEP8118 provides OVP pin for output over voltage − Integrated Soft Start protection. − Thermal Shutdown Protection features include cycle-by-cycle current limit, − Protection Against Shorted