EVAL-ADUM3070EBZ(#2): 15V and 7.5V @ 140mA, 5V in

The EVAL-ADuM3070EBZ demonstrates two separate applications for the ADuM3070 isolated switch regulator with integrated feedback. It has two independent power supply circuits: a double supply and a single supply. The switching frequency can be set from 200 kHz to 1000 kHz. The board supports a variety of I/O configurations and multiple transformer options. It is equipped with two ADuM3070 isolators.

The ADuM30701 isolator is a regulated dc-to-dc isolated power supply controller with an internal MOSFET driver. The dc-to-dc controller has an internal isolated PWM feedback from the secondary side based on the iCoupler® chip scale transformer technology and complete loop compensation. This eliminates the need to use an optocoupler for feedback and compensates the loop for stability.

• Isolated PWM feedback with built in compensation
  

• Primary side transformer driver for up to 2.5 W output power with 5 V input voltage
  

• Soft start function at power-up
  

• 2500 V rms isolation
  

• High common-mode transient immunity: >25 kV/μs
  

• High temperature operation: 105°C