power module identification

Find a power-module reference

Distinguish buck, boost, buck-boost, charger and protection records before selecting a pinout.

Separate the jobs

The catalog groups voltage conversion, battery charging, protection, UPS and fuel-gauge references under Power & charging. These serve different functions. A familiar charger chip does not tell you whether the complete board includes protection, regulated output or a power path for running a load.

Search the actual variant

Try buck, step-down, boost, step-up, buck-boost, TP4056 or TP4057. Match connector and terminal labels against the exact source drawing. A chip-package diagram identifies IC pins; it is not a physical terminal map for every inexpensive module using that chip.

Record the evidence you need

• Exact PCB model or clear identification of the generic variant.
• Separate input, output and battery terminal labels, with polarity.
• Documented input range, configured output and load limits.
• Battery chemistry and charging requirements when applicable.
• Documented protection and power-path behavior for that board.

Use the power desk

The app has sourced profiles, adapter comparisons, runtime estimates and power budgets. Published observations, manufacturer requirements and your own measurements remain distinct. A typical observed current is not a maximum rating. Estimates depend on your inputs and do not establish compatibility for an unidentified module.

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