The ADuM4070 is a regulated DC/DC isolated power supply controller with an internal MOSFET driver. The DC/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.
The ADuM4070 isolator provides a more stable output voltage and higher efficiency compared to unregulated isolated DC/DC jpower supplies. The fully integrated feedback and loop compensation in a wide-body SOIC package provide a smaller form factor and 8.3 mm creepage distance solution. The regulated feedback provides a relatively flat efficiency curve over the full output power range. The ADuM3070 enables a DC/DC converter with a 3.3 V to 24 V isolated output voltage range from either a 5.0 V or a 3.3 V input voltage, with an output power of up to 2.5 W.
Features and Benefits3.3 V to 24 V 8.3 mm creepage 105°C | Interface & Isolation |
| Document | note |
| ADuM4070: Isolated Switching Regulator with Integrated Feedback Data Sheet (Rev. 0) | PDF 554 kB |
| Document | note |
| UG-403: Evaluating the iCoupler ADuM4070 Isolated Switching Regulator with Integrated Feedback | PDF 488 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| ADUM4070ARIZ Production | 16 ld SOIC (increased Creepage) | OTH 37 | -40 to 105C | 1.86 | 1.62 | Y |
| ADUM4070ARIZ-RL Production | 16 ld SOIC (increased Creepage) | REEL 1000 | -40 to 105C | 0 | 1.62 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-ADUM4070EBZ | Evaluation Board | 60 | Y |
