SGM6607 SGM6607YTDI6G/TR Boost Converter for Avalon Hashboard

SGM6607YTDI6G/TR High-Voltage Boost Converter | Step-Up Switching Regulator for Avalon Hashboard Repair

The SGM6607YTDI6G/TR is a high-voltage boost converter with an integrated 40V low-side MOSFET, used on Avalon hashboards (Canaan A1066pro / A1166 / A1246 family) for the local step-up power rails. Accepts a 3V to 20V input range and delivers an output up to 38V — multi-cell battery sources or regulated 5V / 12V rails on the hashboard.

Headline specs: 1.2MHz switching frequency, allowing low-profile inductors and low-value ceramic input / output capacitors that fit the dense Avalon hashboard layout. Supports boost, SEPIC, and other standard switching-regulator topologies — versatile when used as a repair part across multiple Avalon hashboard revisions.

When to Replace the SGM6607

• Local step-up rail dead on Avalon hashboard — boost converter output stuck at 0V.
• Downstream chip group offline — affected ASIC chains lose bias from the failed boost rail.
• Audible squealing or coil whine not present in normal operation — controller frequency drift or saturation event.
• Visible damage on the SOT-23-6 / DFN package — burnt, cracked, or discoloured after a fault event.

SGM6607YTDI6G/TR Specifications

FAQ — SGM6607 Boost Converter

Q: How do I confirm the boost converter is the failed part?
A: Power off. Measure the input voltage at the chip — should be in the 3-20V range. With the board powered, scope the SW pin during start-up: healthy chip produces clean PWM at the switching frequency. Stuck high / low / no output = chip failed.

Q: How is the output voltage set?
A: External feedback divider on the FB pin. The Avalon hashboard's BOM defines the output (commonly 24V, 28V, or 38V depending on the rail). Measure across the divider with the rest of the board working to confirm the target voltage.

Q: Rework profile?
A: SOT-23-6 / small DFN package — hot air at 320°C with flux paste. Preheat the board to 100°C to reduce thermal stress on adjacent 0402 passives. Watch the package orientation against the silk-screen marking before reflow.

Q: Bulk pricing for Avalon hashboard repair benches?
A: Yes — email contact@lys-sz.com for tape-and-reel quantities.

Related products

• Avalon 1166 / 1246 Boost Module 17.5V
• B628 / HX3608 / LN3608 Boost Chip
• SGM2036S 1.8V LDO (Avalon 1446 / 1466)
• TPS7A1108PDRVR 0.8V LDO (Avalon 1466 / 1446)

Avalon hashboard repair benches stocking SGM6607 boost converters by the reel? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.