ICDITI791CK5Q Adjustable Voltage Regulator Chip for Avalon 1246 Hashboard

ICDITI791CK5Q Adjustable Voltage Regulator Chip | 10A Output Replacement IC for Avalon 1246 Hashboard Power Stage Repair

The ICDITI791CK5Q (CK5Q silkscreen marking) is an adjustable voltage regulator chip used on the Avalon 1246 hashboard for local power regulation. Drop-in replacement when the original regulator fails: restores the hashboard's local rail and clears the rail-out-of-spec, chain-scan failure, or hashboard recognition errors that come from a degraded power-stage IC. The 10A output capability matches the load profile of an Avalon 1246 chip cluster local rail.

Provides an input voltage range of 2.7V to 20V with an adjustable output range of 4.5V to 20V — flexible enough to handle whatever rail spec the original schematic calls for. Maximum output current of 10A ensures reliable power delivery under sustained Avalon 1246 hashboard duty. Engineered for stability and efficiency under demanding mining-load conditions: continuous-duty operation at near-rated current without thermal degradation.

When to Replace the ICDITI791CK5Q

• Avalon 1246 hashboard local rail dead — regulator failed open, downstream load receives no power.
• Chain scan failure on one hashboard while the other two run normally — local power stage fault traced to the regulator.
• Visible damage on the IC — burn marks, lifted pins, surge damage from a fault event.
• Excessive heating at the regulator location — degraded internal pass element, conduction loss rising.
• Post-failure hashboard rework — replace local power-stage regulators alongside the primary fault during a complete board repair.

ICDITI791CK5Q Specifications

FAQ — ICDITI791CK5Q Voltage Regulator

Q: How do I identify the ICDITI791CK5Q on the Avalon 1246 hashboard?
A: Look for the CK5Q silkscreen marking on the IC package. The position is typically near the local power stage, often heatsinked or adjacent to the bulk filter capacitors.

Q: How do I set the output voltage?
A: Output is adjustable via the external resistor divider on the FB / ADJ pin. Match the divider on the original board exactly to maintain the OEM regulated voltage. Verify with a multimeter after replacement before applying full load.

Q: How do I diagnose a failed regulator in-circuit?
A: Probe the output pin against ground with no load — should read the expected regulated voltage. Output stuck at 0V or at input voltage indicates failure. Visual inspection catches the obvious burn cases.

Q: Bulk pricing for repair shops?
A: Yes — email contact@lys-sz.com with your monthly volume. Tray and reel quantities are stocked.

Related products

• Avalon Control Board – A1566 / A1366 / A1346 / A1446 / A1466
• ASPL317LDT-R Adjustable LDO 1.3-35V
• Avalon 1166 / 1246 Conductive Copper Sheet – Power Connection
• Avalon 10 Series Hashboard IO Pin Connector

Repair shops stocking ICDITI791CK5Q regulators by the tray? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.