RAA2230214GSP#MA1

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 (<lt/>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 (<lt/>20mW)
• No audible noise
• Low quiescent current (<lt/>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