The circuit presented here is about a boost converter based on LM2698. It is a PWM boost converter from Texas instruments. LM2698 can also be used as a flyback converter. The current mode architecture is a special feature of LM2698, which provides superior line and load regulation. This circuit is capable of a supplying a output voltage of 12V for a input range of 4.5V to 5.5V.
- Input voltage: 4.5VDC to 5.5VDC
- Output voltage: 12VDC
- Output current: 0.4A
- PCB:45mm X 30mm
5V to 12V @400mA Boost Converter – [Link]