Part ACT4523A
Description Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
Manufacturer Active-Semi
Size 391.40 KB
Active-Semi
ACT4523A

Overview

ACT4523A is a wide input voltage, high efficiency ActiveCC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. ACT4523A provides up to 3.5A output current at 250kHz switching frequency.

  • 40V Input Voltage Surge
  • 36V Steady State Operation
  • Up to 3.5A Output Current
  • Output Voltage up to 12V
  • 250kHz Switching Frequency
  • 91% Efficiency (Vout = 5V@3.5A at Vin = 12V)
  • Patented ActiveCC Sensorless Constant Current Control - Integrated Current Control Improves Efficiency, Lowers Cost, and Reduces Component Count
  • Resistor Programmable - Current Limit from 1.5A to 4.0A - Patented Cable Compensation from 0 to
  • ±6.5% CC Accuracy - Compensation of Input /Output Voltage Change - Temperature Compensation - Independent of inductance and Inductor DCR
  • 2% Feedback Voltage Accuracy