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RDK-420 The RDK-420 is a fully populated reference design board from Power Integrations for the InnoSwitch-CH INN2023K IC. It provides a 10W isolated output of 5V at 2A from an 85-264 VAC input.
Mfr Part #:

RDK-420

Available from 1 distributors
Mfr Name: Power Integrations
Power Integrations
The RDK-420 is a fully populated reference design board from Power Integrations for the InnoSwitch-CH INN2023K IC. It provides a 10W isolated output of 5V at 2A from an 85-264 VAC input.
✓ Total Stock: 3 pcs

RDK-420 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
3 pcs
On Request
3 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request
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RDK-420 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Board Type
Current
Main Purpose
Outputs and Type
Power
Regulator Topology
Supplied Contents
Tape & Reel
Utilized IC
Voltage
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RDK-420 Description

Short technical summary and product information.

The RDK-420 is a fully populated reference design board from Power Integrations for evaluating the InnoSwitch-CH INN2023K AC/DC IC. It is designed for a 10W CV/CC USB charger application. The board operates from a universal input of 85-264 VAC and delivers a regulated output of 5V at 2A with ±3% constant voltage and ±5% constant current regulation. No-load input power is less than 10 mW, and the flyback topology includes built-in synchronous rectification for high efficiency and cable voltage drop compensation. The board is fully populated and isolated, supplied as a single board. It is intended for cell phone and USB charger designs.

RDK-420 Quick Information

Product Type: AC/DC Reference Design Board
Canonical Name: Power Integrations RDK-420 Reference Design Board for InnoSwitch-CH INN2023K 10W 5V 2A USB Charger
Subcategory: Flyback Converter Evaluation Board

RDK-420 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: Unaffected

RDK-420 Features

  • 85-264 VAC universal input range.
  • 5V 2A isolated output.
  • ±3% CV and ±5% CC regulation.
  • <10 mW no-load input power.
  • Built-in synchronous rectification.

RDK-420 Applications

  • Ideal for USB charger designs.
  • Suitable for cell phone charging.
  • Used in AC/DC flyback converters.
  • Demonstrates InnoSwitch-CH performance.

RDK-420 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range?

85-264 VAC.

What is the output voltage and current?

5V at 2A.

What is the power rating?

10W.

Is the board RoHS compliant?

RoHS3 compliant (unverified).

What is the regulator topology?

Flyback.

What IC is used?

INN2023K.

What is the no-load input power?

<10 mW.

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