You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.

Product may not be an exact match for your search

You previously purchased this product. View in Order History



AC / DC Converter, Buck, 85 to 265 VAC, 8 W, NSOIC-7, -40 °C to 85 °C


Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
Order Code:
Supply Frame Models Link
See all Technical Docs

Product Overview

RAA223021 is an universal input AC/DC switching buck regulator with ultra-low standby power that features a 700V integrated MOSFET capable of delivering up to 8W output power. It supports output voltage as low as 5V. The RAA223021 combines constant off-time control for heavy load and Pulse Frequency Modulation (PFM) for light-load operation. Constant off-time controls switching frequency above the audible frequency of approximately 43KHz. PFM eliminates any potential audible noises while offering superior light-load efficiency and ultra-low power consumption (<20mW at no load). Efficiency is achieved up to 80%. The RAA223021 also features input brownout protection that prevents input circuitry from the overcurrent at low input voltage. Typical applications include home appliances, home automation, IoT, sensors, metering, industry control and bias power.
  • Ultra-low standby power (<20mW)
  • No audible noise
  • Low quiescent current (<80µA)
  • Low EMI with frequency dithering
  • Programmable PFM allows optimization of COUT for various standby power requirements
  • Overtemperature protection (OTP)
  • Built-in frequency dithering further reduces the EMI noise spectrum
  • Hicc-up protections for output fault conditions such as short-circuit, overload and open feedback


Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

Want to see similar products? Simply select your required attributes below and hit the button ×






Buck (Step Down)




MSL 3 - 168 hours

Find similar products Choose and modify the attributes above to find similar products.

Technical Documents (3)

Packaging type Re-reel
A €5.00 re-reeling charge will be added for this product"
Additional packaging options available
Cut Tape :3773130 Check stock

No Longer Manufactured


Pricing is unavailable. Please contact customer services.

Price for:
Each (Supplied on Cut Tape)
Multiple: 1 Minimum: 100
  • 100+
Quantity Price Your Price
100+ €1.36
Promotional price
Contract Price
Web only price
Web only contract price
Quantity Price Your Price

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Add to Basket Pre-Order
Restricted Item
Enter Your Part No/Line Note
Total Price:
Total Price: ( )
Total Price: --
*Note: If you have selected a re-reeled item a €5.00 charge will be applied."
A re-reel is a custom reel available for cut tape items where the order qty exceeds 100
NOTE: Shipments for different packaging options may come from a remote warehouse. Please see delivery and lead time information for each packaging option.