TPS61178RNWR TPS61178 2.7V ASIC Integrated Circuit Electronic Components

TPS61178RNWR Synchronous Boost Converter IC for ASIC Miner Repair

The TPS61178RNWR is a fully integrated synchronous boost converter with a wide input range of 2.7V to 20V, designed for high-efficiency step-up power conversion on ASIC miner control boards and auxiliary rails. It uses fixed-frequency peak current mode control with integrated slope compensation, automatic PFM mode at light load and forced PWM with the TPS611781 variant, supporting up to 96% efficiency on typical mining bias rails.

Output isolation during shutdown, hiccup-mode short-circuit protection, automatic recovery, OVP and thermal shutdown make it a robust replacement on hashboards and control boards that have suffered an output short or upstream transient.

Specifications

Where the TPS61178RNWR is used

This converter sits on auxiliary boost rails that step a low-voltage logic or USB supply up to a higher rail used by sensors, fan drivers or ASIC bias circuits. Its 10A programmable peak makes it suitable for hashboard pre-regulators where input drops to single-cell levels during start-up. The fast 2.2MHz operation keeps the inductor footprint small on dense control boards.

Compatibility

Drop-in replacement for the TPS61178RNWR socket on cryptocurrency mining repair boards that already specify the part. Verify the package marking and pin-out against your board photograph before ordering. For lower-current LDO rails on the same boards, pair with SPX5205M5 or LP3986-18B3F bias regulators.

Common failure symptoms

• Boost rail stuck at input voltage — IC not switching
• OVP latch after a transient on the output capacitor
• Hiccup behaviour with the inductor whistling at low frequency
• Thermal shutdown of the IC under nominal load (damaged synchronous switch)
• No start-up at low input voltage despite a healthy enable signal

Frequently asked questions

Is automatic PFM always active?

Yes on the TPS61178 base part. The TPS611781 variant forces PWM operation for noise-sensitive rails.

What is the typical inductor for 10A peak?

A shielded SMD power inductor in the 2.2µH to 4.7µH range rated for the peak current is typical. HPC1050-2.2uH is a common fit for compact 2.2MHz designs.

Can it survive an output short?

Yes — hiccup-mode short-circuit protection cycles the converter until the fault clears, and the synchronous switch isolates the output during shutdown.

Do you stock matching inductors and capacitors?

Yes. We carry HPC1050 high-current inductors and SMD aluminum electrolytics suited for boost output stages.

Related products

• HPC1050-2.2uH High-Current SMD Power Inductor
• SPX5205M5 5.0V Low-Dropout Voltage Regulator
• LP3986-18B3F 1.8V Ultra-Low-Noise LDO
• MP174GJ Primary-Side Regulator IC

Contact contact@lys-sz.com for volume pricing or compatibility questions.