XC6219B252MR-MS

MSKSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

XC6219B252MR-MS from MSKSEMI, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VIN	power_in	Power input pin; the supply is rated up to 8V, with an absolute maximum range of -0.3V to 8V.
2	GND	power_in	Ground pin, the return path for the regulator.
3	CE	input	Chip enable pin that shuts down the regulator's internal circuitry when driven by the CE signal.
4	NC	unconnected	No connection; the pin is not connected internally.
5	VOUT	power_out	Regulated output pin for the 2.5V XC6219B252 variant.

Key specifications

Parameter	Value
Manufacturer	MSKSEMI
Package	SOT-23-5
Category	Power Management (PMIC)
Pins	5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Output voltage accuracy tolerance		-2		2	%		2
Input voltage	Vin			8	V		5
Line regulation	△Vout1/(△Vin·Vout)		0.05	0.2	%/V	4.3V≤Vin≤8V, Iout=10mA	5
Load regulation	△Vout		10	30	V	Vin=4.3V, 1.0mA≤Iout≤100mA	5
Output voltage temperature coefficient	△Vout/(Ta·Vout)	-100		100	Ppm/°C	Iout=30mA, 0°C≤Ta≤70°C	5
Supply voltage (absolute maximum)		-0.3		8	V		4
Storage temperature		-50		125	C		4
Operating temperature		-40		85	C		4
Thermal resistance, junction to ambient	θJA			500	℃/W	SOT23-5; assume no ambient airflow, no heat sink	4
Power dissipation	PD			0.25	W	SOT23-5; measured at Ta=25℃	4
Output voltage (nominal)	Vout		2.5		V		3
Output current	Iout		350		mA	Vin-Vout=1V	5
Supply current	Iss1		40		uA		5
Power supply rejection ratio	PSRR		60		dB	F=1KHz, Vin=4.3Vdc+1Vpp	5

CAD (KiCad official)

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

Provenance

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

Datasheet: MSKSEMI datasheet (9 pp, sha256 86e38fb7ca4262ed, retrieved 2026-10-18, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

# XC6219B252MR-MS

**MSKSEMI** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

XC6219B252MR-MS from MSKSEMI, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | power_in | Power input pin; the supply is rated up to 8V, with an absolute maximum range of -0.3V to 8V. |
| 2 | GND | power_in | Ground pin, the return path for the regulator. |
| 3 | CE | input | Chip enable pin that shuts down the regulator's internal circuitry when driven by the CE signal. |
| 4 | NC | unconnected | No connection; the pin is not connected internally. |
| 5 | VOUT | power_out | Regulated output pin for the 2.5V XC6219B252 variant. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output voltage accuracy tolerance |  | -2 |  | 2 | % |  | 2 |
| Input voltage | Vin |  |  | 8 | V |  | 5 |
| Line regulation | △Vout1/(△Vin·Vout) |  | 0.05 | 0.2 | %/V | 4.3V≤Vin≤8V, Iout=10mA | 5 |
| Load regulation | △Vout |  | 10 | 30 | V | Vin=4.3V, 1.0mA≤Iout≤100mA | 5 |
| Output voltage temperature coefficient | △Vout/(Ta·Vout) | -100 |  | 100 | Ppm/°C | Iout=30mA, 0°C≤Ta≤70°C | 5 |
| Supply voltage (absolute maximum) |  | -0.3 |  | 8 | V |  | 4 |
| Storage temperature |  | -50 |  | 125 | C |  | 4 |
| Operating temperature |  | -40 |  | 85 | C |  | 4 |
| Thermal resistance, junction to ambient | θJA |  |  | 500 | ℃/W | SOT23-5; assume no ambient airflow, no heat sink | 4 |
| Power dissipation | PD |  |  | 0.25 | W | SOT23-5; measured at Ta=25℃ | 4 |
| Output voltage (nominal) | Vout |  | 2.5 |  | V |  | 3 |
| Output current | Iout |  | 350 |  | mA | Vin-Vout=1V | 5 |
| Supply current | Iss1 |  | 40 |  | uA |  | 5 |
| Power supply rejection ratio | PSRR |  | 60 |  | dB | F=1KHz, Vin=4.3Vdc+1Vpp | 5 |

## CAD (KiCad official)

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

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603082791848726528) (9 pp, sha256 `86e38fb7ca4262ed`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/xc6219b252mr-ms-datasheet.pdf)