IW1830-EVAL: 15W, 5V @ 1A, 12V @ 500mA, 90 ~ 264V AC


The iW1830-EVAL evaluation board implements a dual-output, 15W power supply based on Dialog Semiconductor’s iW1830 AccuSwitch™ digital offline power supply controller IC. The evaluation board supplies two outputs, 12V/1A and 5V/0.5A, using a single primary-side controlled quasi-resonant flyback converter. The design implements two output voltages using one primary-side controller and achieves the tight regulation required by high-reliability applications such as white goods, home appliances and industrial control.

The iW1830 controller integrates a 700V power MOSFET to lower the power supply BOM cost and uses Dialog’s advanced PrimAccurate™ digital control technology to eliminate the need for external secondary-side feedback components, further reducing component count and cost, while improving reliability.

It operates in quasi-resonant mode to improve efficiency and help meet EMI standards. This quasi-resonant operation and Dialog’s EZ-EMI® technology enable excellent EMI performance with minimal external filtering. Proprietary control technology allows high efficiency across a broad range of loads, which enables the iW1830 to meet stringent international standards for power supply efficiency.


Manufacturer Dialog Semiconductor GmbH
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Multi Output
Eval Board Part Number 1564-1032-ND
Eval Board Supplier Dialog Semiconductor GmbH
Eval Board -
AC Voltage 115 V
230 V
Universal (115 / 230V)
Outputs and Type 2 Isolated
Voltage Out: Highest Current First 5V, 12V
Current Out 1A, 500mA
Output Power 15 W
Efficiency @ Conditions >84%, 115V in, Average of 25%,50, 75%, & 100% Load
No-load Input Power @ Voltage <100 mW @ 230 VAC
Features Current Limit (Adj. or Fixed)
Over Current Protection
Over Voltage Protection
Short Circuit Protection
Soft Start
Thermal Protection
Switching Frequency 72 kHz
Internal Switch Yes
Component Count + Extras 46 + 8
Voltage In 90 ~ 264 VAC
Application / Target Market Industrial Power
White Goods
Design Author Dialog Semiconductor
Main I.C. Base Part iW1830-00
Date Created By Author 2016-05
Date Added To Library 2019-10

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