component

LP28300AQVF

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by Ray

LOWPOWER Battery Management, TDFN-10-EP(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Datasheet

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Contents

README

markdown

LP28300AQVF

LOWPOWER · Battery Management · TDFN-10-EP(3x3)

LP28300AQVF from LOWPOWER, in a TDFN-10-EP(3x3). 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 REG input Input voltage feedback for the input voltage regulation loop. Connect to tap of an external resistor divider from VIN to GND to program the input voltage regulation. Once the voltage at REG pin drops to the inner threshold (1V typ), the charge current is reduced to maintain the input voltage at the regulation value.
2 VIN power_in Positive supply voltage input (4V-18V operating, 24V absolute max). Decouple with a 10µF or larger surface-mounted ceramic capacitor to GND.
3 PMID power_in Power MOS input pin. Connect a 22uF capacitor to ground. Absolute max 24V to GND.
4 SW output Switch pin. Connect to external inductor (typically 4.7uH) for the synchronous buck converter. Fast switching edges (<5ns) - keep trace short to minimize radiation.
5 GND power_in Ground return pin. Tie to the exposed pad (pin 11) and to the PCB ground plane for proper power dissipation.
6 NTC input NTC (Negative Temperature Coefficient) thermistor input. Senses battery pack temperature via an external divider referenced to VIN, and stops charging when temperature is out of range (VNTC_L=30%VIN, VNTC_H=70%VIN). Connect to GND to disable the temperature-monitoring function; pulling to VIN shuts down the charger.
7 STAT output Open-drain charge status output. Pulled low by an internal N-channel MOSFET when the battery is charging (VSTAT=0.5V max at ISTAT=5mA). High impedance during under-voltage lockout or shutdown. Typically driven with a 2K pull-up to VIN and an indicator LED.
8 BST passive Internal charge pump boost pin. Connect a 47nF bootstrap capacitor between BST and SW to drive the high-side MOSFET gate. Absolute max 24V to GND.
9 BAT power_out Battery pin. Connects to the positive terminal of the Li-ion battery being charged. Regulated float voltage 4.2V/4.35V/8.4V/12.6V depending on suffix; absolute max 20V to GND.
10 RS input Charge current sense pin. Connects to the high side of the external current-sense resistor RSNS (BAT is the low side). Charge current is set by IBAT = 50mV / RSNS (e.g. 25mΩ → 2A, 50mΩ → 1A).
11 GND power_in Exposed thermal pad. Must be connected to the PCB ground plane for proper power dissipation and to serve as the primary ground return.

Key specifications

Parameter Value
Manufacturer LOWPOWER
Package TDFN-10-EP(3x3)
Category PMIC
Pins 11

Ordering variants

Same part, different packaging or reel option.

  • LP28300AQVF
  • LP28300AQVFH
  • LP28300AQVFBQVF
  • LP28300AQVFCQVF
  • LP28300AQVFASPF
  • LP28300AQVFASPFH
  • LP28300AQVFBSPF
  • LP28300AQVFCSPF

CAD (KiCad official)

  • Symbol: LP28300AQVF
  • Footprint: Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm
  • 3D model: TDFN-10-EP(3x3) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lp28300aqvf.step 126 KB You want the bare part, or you mark your own boards.
lp28300aqvf-etched.step 2.1 MB You want the part with LP28300AQVF already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 522 faces against 74 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 (10 pp, sha256 63b5bf6ea852da2f, 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