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Contents

README

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XB5606AJ

XySemi · Battery Management · SOT-23-5

XB5606AJ from XySemi, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground; connect the negative terminal of the battery to this pin. Tied together with pin 2 on the package (both are GND).
2 GND power_in Ground; connect the negative terminal of the battery to this pin. Tied together with pin 1 on the package (both are GND).
3 VDD power_in Power supply input; connects to the battery positive terminal via a 1 kΩ series resistor and 0.1 µF decoupling capacitor to GND. Absolute maximum -0.3 to 6 V.
4 VM bidirectional Negative terminal sense of the battery pack (charger-/load- node). The internal FET switch connects this terminal to GND during normal operation. Sensing this pin's voltage relative to GND performs charger detection and overcurrent / load short-circuit detection. Absolute maximum -6 to 10 V. Tied to pin 5.
5 VM bidirectional Negative terminal sense of the battery pack (charger-/load- node). Second VM pin used to carry the high-current path from the internal FET switch to the pack negative rail. Tied to pin 4.

Key specifications

Parameter Value
Manufacturer XySemi
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • XB5606AJ

CAD (KiCad official)

  • Symbol: XB5606AJ
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: XySemi datasheet (12 pp, sha256 c9b6365fb49d19a9, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF