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MD8230A

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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.

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MD8230A

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md8230a.step / md8230a.glb are 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, 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