ADUM4070ARIZ Datasheet PDF - ADI

●The ADUM4070ARIZ is a regulated DC to DC isolated Power Supply Controller with an internal MOSFET driver. The DC-to-DC controller has internal isolated PWM feedback from the secondary side based on the iCoupler® chip scale transformer technology and complete loop compensation. This architecture eliminates the need to use an opto-coupler for feedback and compensates the loop for stability. The ADuM4070 isolator provides a more stable output voltage and higher efficiency compared to unregulated isolated DC-to-DC power supplies. The regulated feedback provides a relatively flat efficiency curve over the full output power range. The ADuM4070 enables a DC-to-DC converter with a 3.3 to 24V isolated output voltage range from either a 5 or a 3.3V input voltage, with an output power of up to 2.5W.

● Isolated PWM feedback with built-in compensation

● Up to 70% efficiency

● Soft start function at power-up

● Pulse-by-pulse overcurrent protection

● Thermal shutdown

● 5000Vrms Isolation

● >25kV/µs High common-mode transient immunity