ADuM4470 / ADuM4471 / ADuM4472 / ADuM4473 / ADuM4474 is a four-channel digital isolator with integrated regulated DC-DC isolated power supply controller and integrated internal MOSFET driver. The DC/DC controller has a built-in isolated PWM feedback on the primary side, using iCoupler® chip-level transformer technology and complete loop compensation. It is not necessary to use an optocoupler for feedback and to compensate the loop for stability. Compared to unregulated isolated DC/DC power supplies, ADuM447x isolators can provide a more stable output voltage and higher efficiency. It is packaged in a wide-body SOIC, fully integrated feedback and loop compensation, providing a smaller size and 8.3 mm creepage distance solution. Regulated feedback can provide a relatively flat efficiency curve over the entire output power range. AduM3070 can enable a DC/DC converter with an isolated output voltage range of 3.3 V to 24 V from an input voltage of 5.0 V or 3.3 V, with an output power of 2.5 W ADuM447x isolators provide four independent isolation channels, supporting multiple channel configurations and data rates. (The ADuM447x mentioned in this data sheet represents ADuM4470 / ADuM4471 / ADuM4472 / ADuM4473 / ADuM4474) APPLICATIONS * Power startup bias and gate drive * Isolation sensor interface * Process control * RS-232/RS-422/RS-485 transceiver * 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 80% efficiency * Quad DC-to-25 Mbps (NRZ) signal isolation channels * 200 kHz to 1 MHz adjustable oscillator * Soft start function at power-up * Pulse-by-pulse overcurrent protection * Thermal shutdown * 5000 V rms isolation https://elecena.pl/product/3895433/isolated-switch-regulator-with-quad-channel-isolators-1-3-channel-directionality 2013-01-18 https://elecena.pl/product/3895433/isolated-switch-regulator-with-quad-channel-isolators-1-3-channel-directionality 2018-03-28 https://elecena.pl/product/3895433/isolated-switch-regulator-with-quad-channel-isolators-1-3-channel-directionality 2025-01-19