Overview
Description
The RAA223011 is a universal input AC/DC switching regulator with ultra-low standby power that features a 700V integrated MOSFET capable of delivering up to 5W output power. It supports output voltage as low as 3.3V. For higher power, use the RAA223021 device, and for low-cost small power solutions (< 2W) use the RAA223012 device.
The 700V AC/DC regulator supports multiple topologies such as buck, primary-side-regulated flyback, and secondary-side-regulator flyback.
The RAA223011 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 30kHz. PFM eliminates any potential audible noises while offering superior light-load efficiency and ultra-low power consumption (< 10mW at no load). Efficiency is achieved up to 80%. The built-in frequency dithering further reduces the EMI noise spectrum.
The RAA223011 also features input brownout protection that prevents input circuitry from the overcurrent at low input voltage, and hiccup protections for output fault conditions such as short-circuit, overload, and open feedback.
The RAA223011 is available in a small 5 Ld TSOT23, 7 Ld SOIC, and 8 Ld SOIC packages.
Features
- Ultra-low standby power (< 10mW)
- No audible noise
- Low quiescent current (< 100μA)
- Output voltage as low as 3.3V
- Low EMI with frequency dithering
- 5 Ld TSOT23, 7 Ld SOIC, and 8 Ld SOIC package options
- Programmable PFM allows optimization of COUT for various standby power requirements
- Protection features: Short-Circuit Protection (SCP), Overload Protection (OLP), open feedback protection, and Over-Temperature Protection (OTP)
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 3.61 MB | |
| Brochure | PDF 6.07 MB | |
| End Of Life Notice | PDF 603 KB | |
| Other | XLSX 167 KB | |
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Design & Development
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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Support Communities
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RAA223011 issue
Hello. We faced with a problem with RAA223011. Output voltage must be 12V but we see 4V(and L2 produce some noise) and if we heating the IC it start produce 12V. Also if we change IC it start produce 12V. And if we change D5 it also produce 12V ...
Jul 7, 2025
Videos & Training
The innovative RAA2230xx family of 700V non-isolated AC/DC buck regulators delivers ultra-low-power consumption, excellent noise and EMI suppression, as well as reduced overall system cost for a wide range of applications, including home appliances, sensing systems, white goods, power meters and industrial controls.