ACT4533A Overview
ACT4533A/B 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. ACT4533A/B provides up to 3.5 A output current at 125 kHz switching frequency. ActiveCC is a patented control scheme to achieve highaccuracy sensorless constant current control.
ACT4533A Key Features
- 40 V Input Voltage Surge
- 36 V Steady State Operation
- Up to 3.5 A output current
- Output Voltage up to 12 V
- 125 kHz Switching Frequency Eases EMI Design
- 91% Efficiency (VOUT = 5 V@2.4 A at VIN = 12 V)
- Stable with Low-ESR Ceramic Capacitors to Allow
- Integrated Over Voltage Protection
- Excellent EMI Performance
- Patented ActiveCC Sensorless Constant Current
