TLV75512PDR 1GVH 1.2V LDO Regulator for Antminer S21 Hydro Hashboard
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TLV75512PDR 1GVH 1.2V LDO Regulator | Replacement for Antminer S21 Hydro Hash Board
The TLV75512PDR (silk mark "1GVH") is a 1.2V low-dropout linear regulator used on the Antminer S21 Hydro hashboard for auxiliary rail generation. The part delivers 500mA continuous output at a fixed 1.2V output, with a 238mV maximum dropout at 500mA and just 25µA quiescent current.
Key for hashboard repair: 46dB PSRR at 100kHz rejects switching-converter noise from upstream buck stages, and the built-in soft-start limits inrush current at power-on. ±1% output accuracy at 85°C meets the precision requirement for ASIC chip auxiliary supplies.
When to Replace the TLV75512PDR
- 1.2V auxiliary rail dead on the S21 Hydro hashboard while VIN is present at the LDO input pin.
- 1.2V rail droops under load — LDO can't sustain the 500mA spec.
- Excessive noise on the 1.2V rail coupling through to ASIC clock signals — PSRR degraded.
- Visible damage on the chip — burnt or cracked package.
TLV75512PDR Specifications
| Feature | Specification |
|---|---|
| Manufacturer | Original |
| Silk Mark | 1GVH |
| Type | Low-Dropout (LDO) Linear Regulator |
| Output Voltage | 1.2V (fixed) |
| Input Voltage Range | 1.45V to 5.5V |
| Output Current | 500mA |
| Dropout Voltage | 238mV max @ 500mA |
| Quiescent Current | 25µA typical |
| PSRR | 46dB @ 100kHz |
| Output Accuracy | ±1% max @ 85°C |
| Soft-Start | Built-in |
| Application | Antminer S21 Hydro hashboard 1.2V auxiliary rail |
FAQ — TLV75512PDR 1.2V LDO
Q: How do I confirm the TLV75512PDR is the failed part?
A: Measure VIN at the input pin (should be 3.3V or 5V from upstream); measure VOUT (should read 1.2V ±1%). If VIN is good but VOUT is 0V or drooping, the LDO is failed.
Q: Can I substitute another 1.2V 500mA LDO?
A: Same footprint and pinout are required. The TLV75512PDR is in a SOT-23-5 / similar small SMD package — verify the pin assignment matches the S21 Hydro PCB silk before substituting any alternate part.
Q: Rework profile?
A: Hot-air at 320°C with flux paste, controlled airflow. Small SMD LDOs are sensitive to thermal shock — preheat the board to 100°C before the rework cycle.
Q: Bulk pricing?
A: Yes — email contact@lys-sz.com for tape-and-reel quantities.
Related products
- Antminer S21 Hydro Control Board C59 / C89
- Antminer S21 / T21 Control Board (Amlogic A113D)
- RT9080-33GJ5 3.3V LDO
- TPS767D301PWP Dual LDO
Antminer S21 Hydro repair benches stocking TLV75512PDR LDOs in volume? Email contact@lys-sz.com for tape-and-reel pricing. Worldwide shipping from our Shenzhen warehouse.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
