ADuM3070 Isolated Switching Regulator Data Sheet

This datasheet details the ADuM3070, an isolated DC-to-DC power supply controller with integrated feedback and MOSFET driver for up to 2.5 W output.


ADuM3070 Isolated Switching Regulator Data Sheet - cover page
Brand
Analog Devices
Category
Power Management
Document type
Datasheet
Language
English
Pages
20
File format
PDF
File size
757 KB
Published
18 October, 2026
Updated
18 October, 2026
MD5 checksum
C7DAEAD6A1CD6C4C32978BFA0F97E07B

About this manual

The ADuM3070 is an isolated DC-to-DC power supply controller featuring an internal MOSFET driver and isolated PWM feedback based on iCoupler technology. It eliminates the need for external optocouplers and provides complete loop compensation for stable output voltage and high efficiency. The device supports regulated adjustable output voltages ranging from 3.3 V to 24 V with up to 80% efficiency.

What's inside

  • Features
  • Applications
  • Functional Block Diagram
  • General Description
  • Specifications
  • Electrical Characteristics
  • Package Characteristics
  • Applications Information
  • Transformer Design
  • Ordering Guide

Specifications

Maximum Output Power2.5 W
Output Voltage Range3.3 V to 24 V
EfficiencyUp to 80%
Switching Frequency Range200 kHz to 1 MHz
Isolation Voltage2500 V rms
Common-Mode Transient Immunity>25 kV/µs
Package Type16-lead QSOP
Operating Temperature105°C

Frequently asked questions

What is the maximum output power of the ADuM3070?

The ADuM3070 is designed for a primary side transformer driver supporting up to 2.5 W output power.

Does the ADuM3070 require an external optocoupler?

No, it uses internal isolated PWM feedback based on iCoupler technology, eliminating the need for an optocoupler.

What is the adjustable output voltage range?

The device provides a regulated adjustable output voltage ranging from 3.3 V to 24 V.

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