SGM2202-1.8YN5G/TR G49IC 1.8V LDO Voltage Regulator

SGM2202-1.8YN5G/TR (G49IC) 1.8V LDO – Antminer Hashboard Voltage Regulator

The SGM2202-1.8YN5G/TR (marking G49IC) is a 1.8V LDO voltage regulator in a SOT23-5 package, used on Antminer L3+ hashboards and general Antminer PSU applications. It provides stable 1.8V regulation for local logic and I/O circuits on the hashboard. Minimum order 10 pieces. New original component.

Why LDOs Fail on Hashboards

LDO regulators on hashboards supply the low-voltage rails that feed sensitive digital logic. Sustained thermal stress and transient events degrade the device over time. A failed LDO causes its downstream circuit to lose power — the miner reports chip errors or board detection failures even though the ASIC chips themselves may be functional.

Replacement Procedure

Locate the failed G49IC on the hashboard — SOT23-5 package near the affected circuit. Desolder with hot air at 300–330°C, clean pads, place the new device with pin 1 aligned and reflow. Verify 1.8V on the output before reinstalling.

SGM2202 LDO Specifications

Related Antminer LDO Voltage Regulators

• LN1134A 1.8V LDO – Antminer Hashboard
• TT2102ADJ LDO – Antminer T17 Hashboard
• AMS1117 3.3V LDO – Avalon Hashboard
• L3+ 220 Inductor Voltage Booster

Sourcing LDOs for hashboard repair? Contact us at contact@lys-sz.com for voltage regulators and board-level parts. Worldwide shipping from our Shenzhen warehouse.