component
XB5556A0
Public Unreviewedby Ray
XySemi Battery Management, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownXB5556A0
XySemi · Battery Management · SOT-23-5
XB5556A0 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 | VT | input | Test pin, for vendor use only; not used by application. Typically left unconnected in end-user designs. |
| 2 | GND | power_in | Ground reference. Connect to the negative terminal of the battery cell. |
| 3 | VDD | power_in | Power supply input. Connected to the battery positive terminal (BAT+) via a 100 Ω series resistor with a 0.1 µF decoupling capacitor to GND. Absolute maximum -0.3 V to 6 V. |
| 4 | VM | bidirectional | Negative terminal of the battery pack / charger-load return. The internal FET switch connects this terminal to GND for charge/discharge control and is used for overcurrent and short-circuit sensing. Absolute maximum -6 V to 10 V. |
| 5 | VM | bidirectional | Negative terminal of the battery pack / charger-load return. The internal FET switch connects this terminal to GND. Shared function with pin 4 for higher current handling. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XySemi |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
XB5556A0 - 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
727f208747ae2580, 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).