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Five small green circuit boards with soldered components

Vszerda

Vszerda 5pcs 0.9-5V to 5V DC-DC Step-Up Boost Converter Board

SKU CH-WJRC-4AH4T

Pack of five boost converter boards raising 0.9–5 V inputs to a stable 5 V output

  • Boosts inputs as low as 0.9 V to a steady 5 V output
  • Handles 1.5 V, 1.8 V, 2.5 V, 3.3 V, 3.7 V and 4.2 V sources
  • Five boards in one pack for multiple projects
  • Compact step-up module suits battery-powered gadgets

Boost module pack for low-voltage projects

This pack contains five step-up converter boards that accept an input between 0.9 V and 5 V and deliver a regulated 5 V output. They suit hobbyists, students and engineers who need to power 5 V logic or USB devices from single-cell batteries, solar cells or other low-voltage sources.

Thermal and power behaviour in typical use

The modules run cool during normal operation because the conversion current stays modest at the voltages listed. No fan or heatsink is required and audible noise is absent. Efficiency varies with the input level, so the source must supply enough current for the target load without excessive voltage drop.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 70% of the 5,998 comparable items (median $24.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 0.9 V input to the boost converter without losing voltage?

Use short thick wires and solder directly to the input pads; a breadboard adds resistance that drops the already low 0.9 V below the converter's start-up threshold.

When should I replace a module if the 5 V output starts to sag under load?

Replace it when the output falls below 5 V at your normal load current, indicating the internal switch or inductor has degraded.

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