ADUM4070
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ADUM4070

Isolated Switch Regulator with Integrated Feedback

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1ku List Price Starting From $1.90
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/µs
  • 16-lead SOIC package with 8.3 mm creepage
  • High temperature operation:
    105°C
  • Safety and regulatory approvals
  • UL recognition: 5000 V rms for 1 minute per UL 1577
  • CSA certification per IEC 62368-1, IEC 61010-1, and IEC 60601-1
  • VDE certificate of conformity
  • DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
  • VIORM = 849 V peak
Additional Details
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The ADuM40701 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 ADuM4070 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 wide-body SOIC package provide a solution with a smaller form factor and 8.3 mm creepage distance.

The regulated feedback provides a relatively flat efficiency curve over the full output power range. The ADuM4070 enables a dc-todc 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
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file View Data Sheet (Rev.A)
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Part Models 2
1ku List Price Starting From $1.90
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ADUM4070

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Data Sheet

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UPDATED 12/08/2023
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ADuM4070: Isolated Switching Regulator with Integrated Feedback Data Sheet (Rev.A)

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UPDATED 11/05/2012
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ADuM4070: 帰還回路付きの絶縁型レギュレータ (Rev.0)

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Informational

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UPDATED 02/14/2015
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First Digital Isolators to Achieve 8.3mm Creepage Packaging redirect icon

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UPDATED 02/10/2015
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8mm沿面距離パッケージを実現した初のデジタル・アイソレータ redirect icon

Safety and Regulatory Compliance

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UPDATED 01/28/2016
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UPDATED 01/28/2016
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安全規格認証や適合の取得状況 redirect icon

User Guide

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UPDATED 03/22/2013
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UG-403: Evaluating the iCoupler ADuM4070 Isolated Switching Regulator with Integrated Feedback redirect icon

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Documentation

Documentation

Safety and Regulatory Compliance 1

Safety and Regulatory Compliance Information

Product Selection Guide 1

Digital Isolation and Interface Technology Selection Guide

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2020-10-28

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Protect your Innovations: from High Precision to High Power

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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
ADUM4070ARIZ 16-Lead SOIC (Increased Creepage) external-link
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  • Material Declaration external-link
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ADUM4070ARIZ-RL 16-Lead SOIC (Increased Creepage) external-link
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Sep 22, 2015

- 15_0135

Alternate Assembly Site of Select Isolator Products in 8L/16L SOIC_N, 16L/20L SOIC_W and 16L/20L SOIC_IC at ASE Chungli

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Detailed Change Description

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Qualification Results Summary

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Nov 6, 2013

- 13_0283

Change of Moisture Sensitivity Level Rating for iCoupler Products Assembled in an RI-16 Package from MSL 1 to MSL 3

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Sep 22, 2015

- 15_0135

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Alternate Assembly Site of Select Isolator Products in 8L/16L SOIC_N, 16L/20L SOIC_W and 16L/20L SOIC_IC at ASE Chungli

ADUM4070ARIZ

PRODUCTION

ADUM4070ARIZ-RL

PRODUCTION

pdf

PCN15_0135_Form

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xls

Material_Report

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Detailed Change Description

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Qualification Results Summary

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Nov 6, 2013

- 13_0283

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Change of Moisture Sensitivity Level Rating for iCoupler Products Assembled in an RI-16 Package from MSL 1 to MSL 3

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PRODUCTION

ADUM4070ARIZ-RL

PRODUCTION

pdf

PCN13_0283_Form

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Material_Report

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Software & Part Ecosystem

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Evaluation Kit

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EVAL-ADUM4070

ADuM4070 Evaluation Board

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EVAL-ADUM4070

ADuM4070 Evaluation Board

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EVAL-ADUM4070
ADuM4070 Evaluation Board
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Product Detail

The EVAL-ADuM4070EBZ can be used for different applications of the ADuM4070 isolated switching regulator. With the ability to be configured as a circuit with either single- (default) or double-supply output, the board supports a variety of input/output configurations and multiple transformer options. It is equipped with an ADuM4070 regulator for voltage isolation; the regulator features integrated feedback and a switching frequency that can be set from 200 kHz to 1000 kHz.

This user guide provides all the necessary details to set up and use the EVAL-ADuM4070EBZ board. Additional information about the ADuM4070 device is available in the ADuM4070 data sheet, which should be consulted in conjunction with this user guide when using the EVAL-ADuM4070EBZ board.

Resources

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UG-403: Evaluating the iCoupler ADuM4070 Isolated Switching Regulator with Integrated Feedback Download

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EVAL-ADUM4070

ADuM4070 Evaluation Board

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