Микросхемы и комплектующие STEVAL-VP12201B

EVAL BOARD , 15V/0.2A BUCK CONVERTER

Evaluation board implements a 15V-3W buck converter mains designed for general purpose applications operating from 85 to 265VAC. It is built around the VIPER122 offline high voltage converter of the VIPerPlus family with a 730V power MOSFET and PWM current mode control. The STEVAL-VP12201B features include its small size and minimal BOM, high efficiency, low standby consumption and tight line and load regulation over the entire input and output range. Burst mode operation allows extremely low consumption under no load and reduces the average switching frequency to minimize all frequency related losses. VIPER122 operates at a fixed frequency of 60 kHz with frequency jittering to meet electromagnetic disturbance standards.

• Frequency range from 50Hz to 60Hz
• Output voltage of 15V, output current of 200mA
• Very compact size
• Stand-by mains consumption of < 30mW at 230VAC
• Average efficiency of > 77%
• Meets IEC55022 Class B conducted EMI even with reduced EMI filter due to the frequency jittering