ADUM3070
PRODUCTIONIsolated Switch Regulator With Integrated Feedback
- Part Models
- 2
- 1ku List Price
- Starting From $2.11
Overview
- 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
- 200 kHz to 1 MHz adjustable oscillator
- Soft start function at power-up
- Pulse-by-pulse overcurrent protection
- Thermal shutdown
- 2500 V rms isolation
- High common-mode transient immunity: >25 kV/μs
- 16-lead QSOP package
- Safety and regulatory approvals
- UL 1577
- VISO = 2500 V rms for 1 minute
- IEC / EN / CSA 62368-1
- IEC / CSA 61010-1
- DIN EN IEC 60747-17 (VDE 0884-17)
- VIORM = 565 V peak
- UL 1577
- High temperature operation: 105°C
The ADuM3070 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.
The ADuM3070 isolator provides a more stable output voltage and higher efficiency compared to unregulated isolated dc-to-dc power supplies. The fully integrated feedback and loop compensation in a small QSOP package provides a smaller form factor than any discrete solution. The regulated feedback provides a relatively flat efficiency curve over the full output power range. The ADuM3070 enables a dc-to-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.
Applications
- Power supply startup bias and gate drives
- Isolated sensor interfaces
- Process controls
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Safety and Regulatory Compliance 1
Safety and Regulatory Compliance 1
Circuit Note 1
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADUM3070ARQZ | 16-Lead QSOP | ||
| ADUM3070ARQZ-RL7 | 16-Lead QSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 7, 2025 - 25_0066 Update Data Sheet Regulatory Information for Select Isolator Products with DC-to-DC Converters |
||
| ADUM3070ARQZ | PRODUCTION | |
| ADUM3070ARQZ-RL7 | PRODUCTION | |
|
Aug 28, 2017 - 17_0107 Addition of ASE Chungli as an Alternate Assembly Site for Select Isolator Products in 16L and 20L QSOP |
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| ADUM3070ARQZ | PRODUCTION | |
| ADUM3070ARQZ-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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EVAL-ADUM3070: ADuM3070 Evaluation BoardADuM3070 Evaluation Board
