component
MD8230A
Public Made by Adomby adom
Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMD8230A
Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3
MD8230A from Shanghai Mingda Microelectronics, in a TO-92-3. 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 of the TO-92 (A_Type) package; the input and output capacitors should be wired close to the GND, VIN and VOUT pins with low-impedance traces. |
| 2 | VIN | power_in | Regulator input; rated -0.3 to 45 V absolute maximum, operating up to 40 V, with a recommended input capacitor of 1.0 µF or more. |
| 3 | VOUT | power_out | Regulated 3.0 V output (±3%) with about 300 mA typical current limit, rated for 150 mA load, must not exceed VIN+0.3 V, and needs an output capacitor of 2.2 µF or more. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | TO-92-3 |
| 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 | VOUT(S) | 2.91 | 3 | 3.09 | V | VIN= VOUT(S)+2V, IOUT=10mA; Ta=25℃ | 3 |
| Input-output voltage differential (dropout), at IOUT=1mA | VDROP | 5 | 10 | mV | IOUT=1mA; Ta=25℃ | 3 | |
| Input-output voltage differential (dropout), at IOUT=150mA | VDROP | 1250 | 2000 | mV | IOUT=150mA; Ta=25℃ | 3 | |
| Input stability (line regulation) | ΔVOUT/(VOUT·ΔVIN) | 0.01 | 0.15 | %/V | VOUT(S)+2V≤VIN≤40V, IOUT=1mA; Ta=25℃ | 3 | |
| Load regulation | VOUT2 | 10 | 90 | mV | VIN = VOUT(S)+2V, 1mA≤IOUT≤150mA; Ta=25℃ | 3 | |
| Output voltage temperature coefficient | ΔVOUT/(VOUT·ΔTa) | 50 | 100 | ppm/℃ | VIN = VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤85℃ | 3 | |
| Quiescent current (ground current) | ISS | 1.4 | 2.8 | uA | no load; Ta=25℃ | 3 | |
| Input voltage (maximum) | Vmax | 40 | V | 3 | |||
| Overcurrent protection (output current limit) | ILIM | 200 | 300 | mA | VIN= VOUT(S)+2V, VOUT = 0.9×VOUT(S); Ta=25℃ | 3 | |
| Input voltage absolute rating | VIN | -0.3 | 45 | V | Ta=25℃ | 2 | |
| Total power dissipation, TO-92 | PD | 300 | mW | Ta=25℃ | 2 | ||
| Operating temperature range | Topr | -40 | 85 | ℃ | 2 | ||
| Storage temperature range | Tstg | -40 | 125 | ℃ | 2 | ||
| ESD protection level, HBM | ESD | 6000 | V | HBM | 2 | ||
| Overtemperature shutdown threshold | TSHDN | 160 | ℃ | IOUT=1mA | 3 | ||
| Thermal resistance junction-to-ambient, TO-92 | RθJA | 250 | ℃/W | 2 |
CAD (KiCad official)
- Symbol:
MD8230A - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
md8230a-etched.step/md8230a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md8230a.step/md8230a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (13 pp, sha256
ba73c262cb85ceb1, 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).