ADUM4070ARIZ

ADUM4070 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 optocoupler for feedback and compensates the loop for stability. The regulated feedback provides a relatively flat efficiency curve over the full output power range. It is used in applications such as power supply start-up bias and gate drives, isolated sensor interfaces, process controls.

• Isolated PWM feedback with built-in compensation
• Regulated adjustable output voltage range from 3.3V to 24V
• Upto 70% efficiency, 200KHz to 1MHz adjustable oscillator
• Soft start function at power-up, pulse-by-pulse overcurrent protection
• Thermal shutdown, 5000V rms isolation
• High common-mode transient immunity is 25KV/μs
• Output noise is 100mV p-p typical at (20MHz bandwidth, COUT = 0.1µF / 47µF, IISO = 100mA)
• IDDA quiescent current is 4mA typical at (4.5V ≤ VDD1 = VDDA ≤ 5.5V)
• Operating temperature is -40°C to +105°C
• Package style is 16-lead SOIC-IC

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party