LP4054HB5F
Public Unreviewedby Ray
LOWPOWER 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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README
markdownLP4054HB5F
LOWPOWER · Battery Management · SOT-23-5
LP4054HB5F from LOWPOWER, 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 | STAT1 | output | Open-drain charge status output. Pulled LOW by an internal N-channel MOSFET while the battery is charging, and released HIGH (high-impedance) when the charge cycle is complete. Sink capability ~5 mA (VOL <= 0.5 V at 5 mA). |
| 2 | GND | power_in | Device ground reference. Also serves as the return for the RISET program resistor and input/output bypass capacitors. |
| 3 | BAT | power_out | Charge current output. Sources programmed charge current to the single-cell Li-Ion battery and regulates the final float voltage to 4.2 V (+/-1%). Continuous short-circuit to GND is permitted per the absolute maximum ratings. |
| 4 | VIN | power_in | Positive input supply from a wall adapter or USB source. Operating range 4.5 V to 6.5 V (absolute max 8 V). A ~10 uF bypass capacitor (optionally with a 1.5 ohm series resistor for X5R ceramics) is recommended close to this pin. |
| 5 | ISET | passive | Charge current program and monitor pin. A 1% resistor RISET from ISET to GND sets the charge current per IBAT = 1000 / RISET (e.g. 2 kohm -> ~500 mA, 10 kohm -> ~100 mA). Pin servos to 1 V in constant-current mode and can be measured to gauge actual charge current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LOWPOWER |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
LP4054HB5FLP4054HB5FB6F
CAD (KiCad official)
- Symbol:
LP4054HB5F - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
lp4054hb5f.step |
85 KB | You want the bare part, or you mark your own boards. |
lp4054hb5f-etched.step |
1.8 MB | You want the part with LP4054HB5F already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 457 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LOWPOWER datasheet (8 pp, sha256
506dbc4a4c251b34, 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).