Analog Devices Inc. ADUM4070ARIZ-RL

Description
The ADUM4070 is a regulated de-to-de isolated power supply controller with an internal MOSFET driver. The de-to-de 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 ADuM4070 isolator provides a more stable output voltage and higher efficiency compared to unregulated isolated de-to-dc power supplies. The fully integrated feedback and loop compensation in a wide-body SOIC package provide a solution with a smaller form factor and 8.3 mm creepage distance.

Features
Isolated PWM feedback with built-in compensation
Primary side transformer driver for up to 2.5 W output power with 5 V input voltage
Regulated adjustable output: 3.3 V to 24 V
Up to 70% efficiency
200 kHz to 1 MHz adjustable oscillator
Soft start function at power-up
Pulse-by-pulse overcurrent protection
Thermal shutdown
5000 V rms isolation
High common-mode transient immunity: >25 kV/us
16-lead SOIC package with 8.3 mm creepage
High temperature operation: 105°C maximum
Safety and regulatory approvals (pending)

Applications
Power supply start-up bias and gate drives
Isolated sensor interfaces
Process controls