ACT4533B
ACT4533B is Wide-Input Sensorless CC/CV Step-Down DC/DC Converter manufactured by Active-Semi.
- Part of the ACT4533A-Active comparator family.
- Part of the ACT4533A-Active comparator family.
ACT4533A/B Rev 0, 14-Aug-13
Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
Features
- 40V Input Voltage Surge
- 36V Steady State Operation
- Up to 3.5A output current
- Output Voltage up to 12V
- 125k Hz 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 Active CC Sensorless Constant Current
Control Improves Efficiency and Lowers Cost.
- Resistor Programmable
- Current Limit from 1.5A to 4.0A
- Patented Cable pensation from 0 to
0.25Ω
- ±7.5% CC Accuracy
- pensation of Input /Output Voltage Change
- Temperature pensation
- 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...