Step Down Power Module 10V for Antminer L3+

Antminer L3+ 10V Step-Down Buck Module for Hashboard Repair

This 10V step-down buck module is a direct replacement for the voltage regulator circuit on the Antminer L3+ hashboard. Built around the LTC3807EUDC (LGSG) chip, this pre-assembled module eliminates the need to source and solder individual regulator components. When the step-down circuit on your L3+ hashboard fails — causing voltage dropout, chain errors, or zero hashrate on specific chips — this module provides a fast, reliable repair path.

L3+ Step-Down Module Specifications

When to Replace the Step-Down Circuit on Your L3+ Hashboard

The Antminer L3+ hashboard uses multiple voltage domains to power the BM1485 ASIC chip chain. The 10V rail is generated by a buck converter circuit that can fail due to component aging, power surges, or thermal stress. Common symptoms include missing chips in the chain log, abnormally low hashrate, or the hashboard not being detected at all. Measuring the 10V test point with a multimeter quickly confirms whether the step-down circuit is the fault. If the voltage is absent or unstable, this drop-in module replaces the entire regulator section in one soldering operation.

L3+ Hashboard Repair: Step-Down vs. Boost Circuits

The L3+ hashboard contains both step-down (buck) and boost circuits serving different voltage rails. This 10V module addresses the step-down section specifically. If your repair diagnostic points to the 14V boost circuit instead, a separate boost module is required. For repair labs processing L3+ boards regularly, stocking both module types ensures you can address either failure mode without delay.

Related L3+ Hashboard Repair Modules and Parts

• Antminer L3+ 14V Voltage Boost Module for Hashboard Repair
• Antminer L3+ U73 Step-Down Module — Black Version
• Antminer L3+ U73 Step-Down Module LM27402S
• L3+ S9 14V Boost Module RT8537 Green Version

Repair your L3+ hashboard voltage circuit quickly. Order now or contact us at contact@lys-sz.com for volume pricing. Worldwide shipping available.