NCP114AMX075TCG 0.75V LDO Regulator for Avalon ASIC Hash Board

NCP114AMX075TCG 0.75V LDO Regulator | ASIC Core Power Replacement for Avalon 1047 / 1066 / 921 / 821 Hash Boards

The NCP114AMX075TCG is a 0.75V (750mV) low-dropout linear regulator in SMD package, used as the ASIC core power supply on Avalon 1047, 1066, 921, and 821 hashboards. When this LDO fails, the ASIC core rail drops out of spec and the chain refuses to scan — symptom triage typically shows one hashboard reporting bad while the other two run normally.

Headline specs for ASIC core duty: 1.7V–5.5V input range, 750mV regulated output, 300mA continuous, 135mV dropout, 75dB PSRR, 50µA quiescent current, 0.01%/V line regulation, 12mV load regulation. Built-in short-circuit, overvoltage shutdown, thermal shutdown, and reverse-connection protection — exactly the protection envelope needed for an ASIC core rail where a downstream short would otherwise burn out the regulator and possibly the chip it feeds.

When to Replace the NCP114AMX075TCG

• Avalon hashboard chain refuses to scan — 0.75V ASIC core rail dead, LDO open or shorted.
• Visible damage on the SMD package after a downstream short event.
• Excessive heat on the LDO at normal load — degraded part, dropout voltage climbing.
• Hashboard boots then drops out — LDO entering thermal shutdown under sustained load.
• Adjacent caps or load components also failed — fix the downstream short first or the new LDO will fail immediately.

NCP114AMX075TCG Specifications

FAQ — NCP114AMX075TCG LDO

Q: How do I confirm the LDO is the dead part?
A: Power off. DMM from VOUT to GND — short reads near 0Ω (downstream short caused the LDO to die protecting itself, fix the short first). OL reads open (LDO opened, replace). Lift the LDO and re-measure the load to confirm which side the fault is on.

Q: 0.75V output — that's much lower than typical LDO output. Why?
A: ASIC core voltages on modern miners run very low (around 0.7–0.8V) to limit power dissipation at high chip counts. The NCP114AMX075TCG is purpose-built for these sub-1V ASIC core rails — typical 3.3V or 5V LDOs aren't suitable substitutes because they can't regulate that low.

Q: 300mA output current — can it feed multiple ASIC chips?
A: Usually one LDO per ASIC chip group, not for the full hashboard. Multiple NCP114 instances on the same board feed different sections. Check the schematic to confirm the per-instance load.

Q: Bulk pricing for Avalon repair benches?
A: Yes — email contact@lys-sz.com for reel-quantity NCP114AMX075TCG pricing.

Related products

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• AMS1117 LDO 3.3V SOT-223 (Avalon hashboard)
• TLV75801PDRVT Adjustable LDO 500mA (Avalon)

Avalon hashboard repair benches stocking NCP114 LDOs by the reel? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.