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Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
docs	xc6219b252mr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
viewers	pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray	1mo ago
package.json	pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray	1mo ago
pads.json	pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray	1mo ago
page.json	xc6219b252mr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray	20h ago
README.md	xc6219b252mr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray	16d ago
xc6219b252mr-etched.fit.json	xc6219b252mr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
xc6219b252mr-etched.glb	xc6219b252mr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
xc6219b252mr-etched.step	xc6219b252mr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
xc6219b252mr.glb	Publish 0.1.0 · Ray	1mo ago
xc6219b252mr.kicad_mod	Publish 0.1.0 · Ray	1mo ago
xc6219b252mr.kicad_sym	Publish 0.1.0 · Ray	1mo ago
xc6219b252mr.lbr	rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 5 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray	1mo ago
xc6219b252mr.step	Publish 0.1.0 · Ray	1mo ago

XC6219B252MR

UMW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT23-5

XC6219B252MR from UMW, in a SOT23-5. 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	VIN	power_in	Input supply pin. Operating range 1.8V to 7V, absolute maximum 9V. Bypass to VSS with a 10µF ceramic capacitor close to the pin.
2	VSS	power_in	Device ground reference (0V).
3	CE	input	Chip Enable (active high). VCEH = 1.6V min (up to VIN) enables the regulator; VCEL = 0 to 0.5V places the device in shutdown (turn-off current typ. 0.1µA). CE input current ≤0.5µA. Do not leave floating.
4	NC	unconnected	No internal connection. Leave open or tie as convenient for the PCB layout.
5	VOUT	power_out	Regulated output, fixed 2.5V ±2.5% for XC6219B252MR. Supplies up to 300mA (typ) with a 280mV typ dropout at 100mA. Requires a 10µF ceramic output capacitor for stability.

Key specifications

Parameter	Value
Manufacturer	UMW
Package	SOT23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

XC6219B252MRB152MR
XC6219B252MRB182MR
XC6219B252MR
XC6219B252MRB282MR
XC6219B252MRB302MR
XC6219B252MRB332MR
XC6219B252MRB362MR
XC6219B252MRB502MR
XC6219B252MRB152PR
XC6219B252MRB182PR
XC6219B252PR
XC6219B252MRB282PR
XC6219B252MRB302PR
XC6219B252MRB332PR
XC6219B252MRB362PR
XC6219B252MRB502PR

CAD (KiCad official)

Symbol: XC6219B252MR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT23-5 (KiCad packages3D, STEP)
3D model files: xc6219b252mr-etched.step / xc6219b252mr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xc6219b252mr.step / xc6219b252mr.glb are the bare package body.

Provenance

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

Datasheet: UMW datasheet (9 pp, sha256 b0229c0bd1c70b57, 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