TPS61170DRVR TPS61170 BZS 1.2A Boost Converter for Avalon 1066 Hashboard

TPS61170DRVR BZS Boost Converter | 1.2A High-Voltage Step-Up Replacement for Avalon 1066 Hashboard Repair

The TPS61170DRVR (silk marking BZS) is a high-voltage boost / step-up DC-DC converter with an integrated switch, used on the Avalon 1066 hashboard to step a lower input rail up to the higher voltage needed by gate drivers, level shifters, or LED indicator strings on the board. When this converter fails, the rail it feeds collapses and the dependent circuits go dark — often without obvious external symptoms until the hashboard refuses to scan.

Headline specs for hashboard duty: 3V to 18V input range, 3V to 38V adjustable output, 960mA switch current, 1.2MHz switching frequency, and topology flexibility (boost / buck-boost / flyback / SEPIC) depending on external network. Compact 6-WDFN exposed-pad package matched to the dense Avalon 1066 hashboard layout.

When to Replace the TPS61170DRVR

• Avalon 1066 hashboard rail dead downstream of the boost stage — converter open or shorted.
• Output voltage out of spec under load — converter degraded, switch current capability dropping.
• Visible damage on the WDFN-6 package after a downstream short event.
• Hashboard logic intermittent — boost rail drifting in and out of spec at the hashboard tester.
• Adjacent inductor or output diode also failed — replace the full boost stage together.

TPS61170DRVR BZS Specifications

FAQ — TPS61170DRVR Boost Converter

Q: How do I confirm the boost converter is the dead part?
A: Power off. DMM from VOUT to GND — short reads near 0Ω (downstream short caused the failure, fix the short first). OL reads open. With power on, scope the SW pin — healthy converter shows switching at 1.2MHz, dead converter shows no activity or stuck high/low.

Q: Topology flexibility — does that mean I can configure it on the bench?
A: On a repair install, you must match the original board's topology exactly — the external inductor, diode, and feedback network determine which mode the chip is in. Don't try to "improve" the topology; install the same TPS61170DRVR in the same external network as the original.

Q: WDFN-6 rework profile?
A: Exposed pad on the WDFN-6 carries most of the heat — bottom-side preheat 130–150°C, top-side hot air 320°C with flux paste. The exposed pad must connect to the board's thermal copper for proper heat sinking. X-ray inspection ideal post-reflow.

Q: Bulk pricing for Avalon 1066 repair benches?
A: Yes — email contact@lys-sz.com for reel-quantity TPS61170DRVR pricing.

Related products

• SGM6612A 20V Synchronous Boost Converter (Avalon)
• TPS61161DRVR BZR LED Driver / Boost (Antminer L3+)
• NCP114AMX075TCG 0.75V LDO (Avalon hashboards)
• MC34063ADR2G Switching Regulator (Avalon 8-series PMU)

Avalon 1066 repair benches stocking TPS61170DRVR boost converters by the reel? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.