2019/5/17 – EC4230 Offline Inductor-less AC Linear Regulator

General Description

EC4230  is  a  compact,  inductor-less,  offline  linear regulator.  It steps down  the  AC line  voltage to 5V. It is a simple solution to provide a bias voltage in offline applications. EC4230 integrates a 500V power MOSFET, startup  controller, voltage control circuit, AC synchronous  circuit, low   dropout  regulator, etc. The  IC also integrates smart control system uses AC line  power  when  necessary,  thus  minimizing device  losses  to  achieve  good  efficiency.  The IC can help system designs  meeting new standby power specifications. EC4230 integrates  functions  and protections of Under Voltage Lockout (UVLO), VDD over Voltage Protection  (VDD OVP), Over Load Protection (OLP), Output Under Voltage Protection (UVP), On Chip Thermal Shutdown (OTP), etc.


◆High Output Voltage Accuracy: 2%

◆Fixed Output: 5V

◆Smart Control to Maximize Efficiency

◆Universal Input Range: 80~305VAC

◆No Inductor Required

◆No Bulk Capacitor Required

◆Less Components and Low Cost

◆Fast Line and Load Transient Response

◆Short Load Protection

◆Output Under Voltage Protection (UVP)

◆Over Load Protection(OLP)

◆On Chip Thermal Shutdown (OTP)

◆Provide Power Good Signal

◆Available with DIP8、ESOP8 Package


◆Non Isolation AC/DC Converter

◆Home Appliance

◆Wall Switches and Dimmers