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MD8353A

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Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MD8353A

Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · SOT-89-3

MD8353A from Shanghai Mingda Microelectronics, in a SOT-89-3. 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 83XXA pinout variant (pin 1 is GND, whereas the non-A variant puts VOUT here).
2 VIN power_in Input supply pin, operating range 2.2V to 40V (absolute maximum 45V), with a recommended input capacitor of 1.0µF or more placed close to the IC.
3 VOUT power_out Regulated output pin delivering up to 300mA, with a recommended output capacitor of 1.0µF or more, and must not exceed VIN+0.3V.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-89-3
Category Power Supply Chip
Pins 3

CAD (KiCad official)

  • Symbol: MD8353A
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: md8353a-etched.step / md8353a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md8353a.step / md8353a.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 0505673b2c0a2133, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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