EUP3270 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – CC/CV Mode Synchronous Step-Down Converter

EUP3270
CC/CV Mode Synchronous
Step-Down Converter
DESCRIPTION
The EUP3270 is a synchronous step-down converter
capable of driving 4A continuous load with excellent
line and load regulation. The EUP3270 operates in
either CC (Constant Current) mode or CV (Constant
Voltage) mode with an input voltage range from 4.5V
to 30V. The EUP3270 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 EUP3270 is available in SOP-8 (EP) package.
FEATURES
4.5V to 30V Wide Input Operating Range
80kHz~800kHz Switching Frequency Selection
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
APPLICATIONS
Car Charger
Portable charger applications
DC/DC converters with current limited
Typical Application Circuit
Figure 1. 150KHz Operating Frequency Application Circuit
DS3270 Ver1.2 Aug. 2016
1