Devices consume low power, offer excellent EMI, give no audible noise and reduce BOM costs while complementing MCU and sensor lines
Optimised power consumption, noise and EMI suppression, as well as, reduced overall system cost – these are the features of the new
RAA2230XX 700V buck regulators (2W, 4W and 8W versions) that are ideal for a wide range of applications, including home appliances, sensing systems such as smoke alarms and gas sensors, white goods, power meters and industrial controls.Â
When idle, the RAA2230XX consumes only 10mW to 30mW, which helps system designers meet strict standby power regulations. Another useful feature is the inclusion of a unique switching algorithm that minimises electromagnetic interference (EMI) and eliminates audible noise, such as ‘humming’ or ‘whining’ that can affect competitors’ solutions. The new regulators also can supply an output of as low as 3.3V when connected to the AC line, enabling designers to eliminate a second-stage low dropout regulator (LDO), saving BOM cost and board space.
Key FeaturesÂ
- Support for both non-isolated buck and isolated flyback topologies, allowing customers to develop multiple types of AC input power supplies
- Ultra-low 10mW to 30mW idle power consumption, enabling compliance with strict standby power regulations
- Minimal EMI and no audible noise prevent last-minute product development headaches
The new 700V RAA2230XX buck regulators are available in TSOT23-5, SOIC-8 and SOIC-7 package options from Renesas Electronics Corporation. Numerous evaluations boards are also offered for different package and output combinations.
