B628芯片电路图，B628升压IC的PCB布局PCB

The FSB628 is a constant frequency, 6-pin SOT23 current mode step-up converter intended for small, low power applications. The FSB628 switches at 1.2MHz and allows the use of tiny, low cost capacitors and inductors 2mm or less in height. Internal soft-start results in small inrush current and extends battery life.

The FSB628 features automatic shifting to pulse frequency modulation mode at light loads. The FSB628 includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The FSB628 is available in a small 6-pin SOT-23 package.

FEATURES

up to 97% Efficiency
2V to 24V Input Voltage
1.2MHz Fixed Switching Frequency
Internal 4A Switch Current Limit
Adjustable Output Voltage
Internal Compensation
Up to 28V Output Voltage
B628芯片的电路图，可调输出电压的最高输出28V