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发布者:来自网络 发布时间:2018-9-18 阅读:183次    关键字: DC-DC
EUP3271-CC/CV Synchronous Step-Down Converter


EUP3271-CC/CV Mode Synchronous Step-Down Converter DataSheet

Description
The EUP3271 is a synchronous step-down converter ,capable of driving 4A continuous load with excellent line and load regulation. The EUP3271 operates in either CC (Constant Current) mode or CV (Constant Voltage) mode with an input voltage range from 4.5V to 36V.
The EUP3271 provides programmable cable compensation by adjusting external resistor divider.External shutdown function can be controlled by pulling COMP pin to a level below 0.14V.Fault protection includes secondary cycle-by-cycle current limit, short circuit protection and thermal shutdown. Internal soft-start minimizes the inrush supply current and the output overshoot at initial startup.
The EUP3271 is available in SOP-8 (EP) package.


Feature
•4.5V to 36V Wide Input Operating Range
•80kHz~800kHz Switching Frequency ion
•CC/CV Mode Control
•Up to 4A Output Current
•+/- 1.5% Voltage Reference Accuracy
•+/- 4% Constant Current Accuracy
•Programmable Cable Compensation
•Internal Soft Start
•Single Pin to External Compensation and
Shutdown Control
•Hiccup Short Circuit Protection
•Secondary Cycle-by-Cycle Current Limit
•Thermal Shutdown
•Available in SOP-8 (EP) Package
•RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free


Application
•Car Charger
•Portable charger applications
•DC/DC converters with current limited

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