High Voltage Buck Converter Demonstration Board
The RAA223012 demonstration boards (RTKA223012DR0010BU and RTKA223012DR0020BU) are high voltage buck converters that demonstrate low-cost high-performance non-isolated...
Featured Documents:
Overview
Description
The RAA223012 is a universal input AC/DC switching regulator with ultra-low standby power that features a 700V integrated MOSFET capable of delivering up to 2.5W of output power. It supports output voltages as low as 3.3V.
The 700V AC/DC regulator supports multiple topologies such as buck, primary-side-regulated flyback, and secondary-side-regulator flyback.
The RAA223012 combines constant off-time control for heavy load and Pulse Frequency Modulation (PFM) for light-load operation. Constant off-time controls the switching frequency above the audible frequency of approximately 50kHz. 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 75%. The built-in frequency dithering further reduces the EMI noise spectrum.
The RAA223012 also features input brownout protection that prevents input circuitry from overcurrent at low input voltages, and hiccup protections for output fault conditions such as short-circuit, overload, and open feedback.
The RAA223012 is available in small 5 Ld TSOT23 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 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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| End Of Life Notice | PDF 603 KB | |
| Other | XLSX 167 KB | |
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Design & Development
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Boards & Kits
RAA223012 High Voltage Buck Converter Demo Board with 85VAC to 265VAC Vin range and 5V 150mA Output
The RAA223012 demonstration boards (RTKA223012DR0010BU and RTKA223012DR0020BU) are high voltage buck converters that demonstrate low-cost high-performance non-isolated...
Featured Documents:
RAA223012 High Voltage Buck or Buck/Boost Converter Demo Board, 85VAC to 265VAC Vin, 5V or -5V 150mA Output
The RAA223012 demonstration boards (RTKA223012DR0050BU and RTKA223012DR0060BU) are high voltage buck or buck/boost converters that demonstrate low-cost high-performance...
Featured Documents:
RAA223012 High Voltage Buck or Buck/Boost Converter Demo Board, 85VAC to 265VAC Vin, 5V or -5V 150mA Output
The RAA223012 demonstration boards (RTKA223012DR0050BU and RTKA223012DR0060BU) are high voltage buck or buck/boost converters that demonstrate low-cost high-performance...
Featured Documents:
Household Smoke Detector Development Board
A photoelectric smoke detector consists of an IR photodiode (sender) and a phototransistor (receiver/detector) arranged inside a so-called smoke chamber. Inside this...
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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.
Product Options
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Videos & Training
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Video List
