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MD85E30QC3

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Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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MD85E30QC3

Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L

MD85E30QC3 from Shanghai Mingda Microelectronics, in a SOT-23-5L. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VIN power_in Power input pin. Operating range 2.2V to 40V; absolute max 45V. Requires a >=2.2uF input capacitor placed close to the pin.
2 GND power_in Ground reference for the regulator. Quiescent (GND) current is typically 1.2-2.3uA depending on output setting.
3 EN input Enable pin (active high). Drive high (VENH >= 1.5V, up to 40V) to enable the regulator; drive low (VENL <= 0.6V) to enter shutdown (ISHUT ~0.1uA at VIN=40V). Not internally pulled; must be driven.
4 NC unconnected No internal connection. Leave floating or tie to a convenient net; do not use for signal routing.
5 VOUT power_out Regulated output voltage pin. Fixed 3.0V (+/-2%) for the MD8530 option, up to 300mA output current with foldback current limiting (~65mA short-circuit). Requires a >=2.2uF low-ESR ceramic output capacitor.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-23-5L
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • MD85E30QC3
  • MD85E33QC3
  • MD85E36QC3
  • MD85E50QC3
  • MD85A30QC3
  • MD85A33QC3
  • MD85A36QC3
  • MD85A50QC3
  • MD85E30QA3
  • MD85E33QA3
  • MD85E36QA3
  • MD85E50QA3
  • MD85E30PA1
  • MD85E33PA1
  • MD85E36PA1
  • MD85E50PA1
  • MD85E53PA1
  • MD85E57PA1
  • MD85EC0PA1
  • MD85EF0PA1
  • MD85A30PA1
  • MD85A33PA1
  • MD85A36PA1
  • MD85A50PA1
  • MD85AC0PA1
  • MD85E33SF4
  • MD85E50SF4
  • MD85EC0SF4
  • MD85EF0SF4

CAD (KiCad official)

  • Symbol: MD85E30QC3
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: md85e30qc3-etched.step / md85e30qc3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md85e30qc3.step / md85e30qc3.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 b57d90f008c009b2, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF