Active-Semi ACT4533C
ACT4533C 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. ACT4533C provides up to 3.5A output current at 125kHz switching frequency.| Part No. | ACT4533C |
|---|---|
| Datasheet | ACT4533C Download |
| Manufacturer |  Active-Semi |
| Description | Wide-Input Sensorless CC/CV Step-Down DC/DC Converter |
| Buy | Stock & Price |
FEATURES
● 40V Input Voltage Surge● 36V Steady State Operation
● Up to 3.5A output current
● Output Voltage up to 18V
● 125kHz Switching Frequency Eases EMI Design
● 91% Efficiency (Vout=5V@2.4A at Vin=12V)
● Stable with Low-ESR Ceramic Capacitors to Allow Low-Profile Designs
● Integrated Over Voltage Protection
● Excellent EMI Performance
● Patented ActiveCC Sensorless Constant Current Control Improves Efficiency and Lowers Cost.
● Resistor Programmable − Current Limit from 1.5A to 4.0A − Patented Cable Compensation from 0 to 0.25Ω
● ±7.5% CC Accuracy − Compensation of Input /Output Voltage Change − Temperature Compensation − Independent of inductance and Inductor DCR
● 2% Feedback Voltage Accuracy
● Advanced Feature Set − Integrated Soft Start − Thermal Shutdown − Secondary Cycle-by-Cycle Current Limit − Protection Against Shorted ISET Pin
● SOP-8EP Package
APPLICATIONS
● Car Charger/ Adaptor● Rechargeable Portable Devices
● General-Purpose CV/CC Power Supply
GENERAL DESCRIPTION
ActiveCC is a patented control scheme to achieve high-accuracy sensorless constant current control.
