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Contents

Pinout
Key specifications
Electrical characteristics
CAD (KiCad official)
Provenance

README

markdown

MD8225

Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L

MD8225 from Shanghai Mingda Microelectronics, in a SOT-23-3L. 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	GND	power_in	Ground pin; keep the GND, VIN and VOUT wiring at low impedance and place the output capacitor close to VOUT-GND.
2	VOUT	power_out	Regulated 2.5V output (MD8225, ±3%, 300mA typical current limit); must not exceed VIN+0.3V, and needs at least 2.2µF output capacitor.
3	VIN	power_in	Supply input, withstands up to 40V (absolute maximum 45V) while holding regulation; needs at least 1.0µF input capacitor.

Key specifications

Parameter	Value
Manufacturer	Shanghai Mingda Microelectronics
Package	SOT-23-3L
Category	Power Management (PMIC)
Pins	3

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 (MD8225, 2.5V)		-3		3	%		1
Output voltage	VOUT(S)	2.425	2.5	2.575	V	VIN = VOUT(S)+2V, IOUT=10mA	2
Dropout voltage	VDROP		5	8	mV	IOUT = 1mA	2
Dropout voltage	VDROP		1250	2000	mV	IOUT = 150mA	2
Input stability	ΔVOUT/ΔVIN		0.01	0.15	%/V	VOUT(S)+2V ≤ VIN ≤ 40V, IOUT = 1mA	2
Load stability	ΔVOUT		10	90	mV	VIN = VOUT(S)+2V, 1mA ≤ IOUT ≤ 150mA	2
Output voltage temperature coefficient		-100	50	100	ppm/℃	VIN = VOUT(S)+2V, IOUT=10mA, -40℃ ≤ Ta ≤ 85℃	2
Quiescent current (GND current)	ISS		1.4	2.8	uA	no load	2
Input voltage (maximum)	Vmax			40	V		2
Overcurrent protection limit	ILIM	200	300		mA	VIN = VOUT(S)+2V, VOUT = 0.9 × VOUT(S)	2
Overtemperature shutdown	TSHDN		160		℃	IOUT = 1mA	2
Input voltage	VIN	-0.3		45	V		2
Power dissipation, SOT89-3	PD			500	mW	SOT 89-3 package	2
Power dissipation, SOT23-5	PD			250	mW	SOT 23-5 package	2
ESD protection (HBM)	ESD HBM			6000	V		2
Operating temperature range	Topr	-40		85	℃		2
Storage temperature range	Tstg	-40		125	℃		2
Input capacitor	CIN	1			µF	minimum value, as printed in recommended conditions	4
Output capacitor	COUT	2.2			µF	electrolytic or tantalum, or ceramic; minimum value as printed	4

CAD (KiCad official)

Symbol: MD8225
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3L (KiCad packages3D, STEP)
3D model files: md8225-etched.step / md8225-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md8225.step / md8225.glb are the bare package body.

Provenance

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

Datasheet: Shanghai Mingda Microelectronics datasheet (10 pp, sha256 bd4aefd613b0a967, retrieved 2026-10-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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