LM2577 DC-DC Step-Up Power Converter Module

The LM2577 DC-DC Step-Up Power Converter module is an adjustable boost converter that raises a low DC voltage to a higher one. Set the output with the onboard potentiometer and run 9 V, 12 V or 24 V loads from a lower voltage battery, USB supply or solar panel. It is built around the LM2577 switching regulator, which has a built-in 3 A power switch.

LM2577 DC-DC Step-Up Power Converter Specifications

• Controller: LM2577 step-up (boost) switching regulator
• Switching frequency: 52 kHz, fixed
• Switch current: 3 A peak (internal switch of the LM2577)
• Input voltage: from 3.5 V; check the board rating for the maximum
• Output voltage: adjustable with the potentiometer, always higher than the input
• Isolation: none, input and output share the same ground

LM2577 DC-DC Step-Up Power Converter Applications

• Boosting a 3.7 V Li-ion or LiPo cell to 5 V, 9 V or 12 V
• Running 12 V fans, relays and LED strips from a 5 V USB supply
• Raising a 12 V battery to 19 V or 24 V for higher voltage devices
• Bench and lab supplies that need an adjustable output
• Solar and battery-powered robotics and IoT projects

What's in the Box

• 1 × LM2577 step-up converter module

Tip: Set the output voltage with no load connected and check it with a multimeter before wiring your device. A boost converter draws more current from the input than it delivers at the output, so the higher the step-up ratio, the less output current is available.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.