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MD52E15QA3

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by Ray

Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. 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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MD52E15QA3

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

MD52E15QA3 from Shanghai Mingda Microelectronics, in a SOT-23-3L. 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 GND power_in Device ground. Reference return for the internal bandgap, error amplifier, and pass transistor. Typical GND current is 0.6µA (no load) and ~210µA at IOUT=500mA.
2 VOUT power_out Regulated 1.5V output (VOUT(S)=1.5V for MD52E15QA3). Delivers up to 500mA continuous. Requires a ≥1.0µF low-ESR ceramic output capacitor for stability. Absolute maximum output voltage rating VSS−0.3 to VIN+0.3V.
3 VIN power_in Unregulated input supply. Operating range 2.2V to 7.0V (absolute maximum −0.3 to 8V). Requires a ≥1.0µF input decoupling capacitor. In the SOT23-3L variant the EN function is internally tied to VIN, so the LDO is always enabled when VIN is present.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-23-3L
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • MD52E15QA3
  • MD52E15QA3QC3
  • MD52E15QA3PA1
  • MD52E15QA3WB6

CAD (KiCad official)

  • Symbol: MD52E15QA3
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Shanghai Mingda Microelectronics datasheet (14 pp, sha256 11f4b5d8b0feb201, 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