IP2325 from INJOINIC, in a ESOP-8. 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	VSYS	power_in	Boost output intermediate node. Requires two 22uF ceramic decoupling capacitors placed close to the pin.
2	VOUT	power_out	Boost output pin, connects to the positive terminal of the 2S Li-ion battery pack. Target charge voltage 8.1V-8.4V (set by RVSET), charge current up to 1.2A.
3	VSET	input	Constant-voltage charge voltage set pin. An external resistor RVSET to GND programs the CV target: NC=8.4V, 120K=8.3V, 68K=8.2V, 1K=8.1V.
4	NTC	input	NTC temperature protection pin. Sources 20uA into an external NTC thermistor network; voltage thresholds VH=0.43V / VM=0.56V / VL=1.32V determine over/under-temperature actions. Tie via 51K to GND to disable.
5	LED	output	Charge status LED driver output. Max drive current 5mA. LED is on during charging, off when full, and blinks on fault/abnormal conditions.
6	VIN	power_in	Input supply and sensing pin. Recommended 4.5-5.5V (typ 5V), abs max 20V. UVLO ~4.5V, OVP ~5.75V. Quiescent input current ~20mA.
7	BST	passive	Bootstrap capacitor pin for the high-side gate drive. Place a 0.1uF capacitor between BST and LX close to the IC.
8	LX	power_out	DCDC switching node. Connects to the boost inductor (typ 2.2uH) at 500KHz switching frequency.
EPAD	GND	power_in	Exposed thermal pad and system/power ground. Solder to the PCB ground plane for thermal dissipation (θJA ≈ 60°C/W).

Key specifications

Parameter	Value
Manufacturer	INJOINIC
Package	ESOP-8
Category	PMIC
Pins	9

Ordering variants

Same part, different packaging or reel option.

IP2325
IP2325_8V8
IP2325_DA
IP2325_3S

CAD (KiCad official)

Symbol: IP2325
Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
3D model: ESOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ip2325.step`	193 KB	You want the bare part, or you mark your own boards.
`ip2325-etched.step`	1.3 MB	You want the part with `IP2325` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 324 faces against 63 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: INJOINIC datasheet (11 pp, sha256 ebb55c816a3b7cf0, 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