AX3016 Datasheet | AXElite

AX3016 1.2A PWM Buck DC/DC Converter  GENERAL DESCRIPTION The AX3016/A series are monolithic IC designed for a step-down DC/DC converter, and own the ability of driving a 1.2A load without additional transistor. It saves board space. The external shutdown function can be controlled by logic level and then e into standby mode. The outside pensation makes feedback control having good line and load regulation. Regarding protected function, thermal shutdown is to prevent over temperature operating from damage; current limit is against over current operating of the output switch that set by outside resistance. Current limit depends on RSENSE value. The over voltage protection (OVP) that can avoid high VOUT voltage to damage circuit and capacitor, the OVP voltage is set by outside resistances. The chip is available in SOP-8L-EP package which Features small size as exposed pad to reduce the junction-to-case resistance.  Features - - yÑbto 40V Operating voltage can be up R ` w Adjustable version output voltage range VÛm om form 3.3V to 30V. c . Output load current: 1.2A ch fo External OVP setting function o g w. 50KHz Operating Frequency: w w Current mode non-synchronous PWM converter Thermal-shutdown and current-limit protection. Shutdown and soft-start function. Short Circuit Protect (SCP) External current limit setting Under voltage Lockout SOP-8L-EP Pb-Free package Line-pensation te € 1/8 Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.0 Dec.02, 2010 AX3016  BLOCK DIAGRAM EN/CT VIN CURRENT SOURCE BIAS 1.23V REFERENCE 2.5 V REGULATOR START-UP Soft-Start 1.08V 50K/ 130KHz OSC. Current limit P . 140mV + FB + AMP _ + P . SENSE1 SENSE2 CONTROL + DRIVER _ OVP 0.4V AMP + + AMP _ OVP Thermal...