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MD52E25QC3

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by Ray

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

componentpower management (pmic)md52e25qc3
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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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Contents

README

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MD52E25QC3

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

MD52E25QC3 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 Positive supply input, 2.2V to 7.0V operating range (absolute max 8V). Bypass to GND with a ceramic capacitor ≥1.0μF placed close to the pin.
2 GND power_in Device ground reference. All internal voltages, the reference, and the feedback divider return here.
3 EN input Active-high enable input. VENH ≥ 1.0V (up to VIN, max 7.0V) turns the regulator on; VENL ≤ 0.38V puts the device into shutdown (ISHUT = 10nA typ at VIN=7.0V) and activates the internal COUT auto-discharge path (RDCHG ≈ 280-640Ω). Input current is ±0.1μA max; do not leave floating.
4 NC unconnected No internal connection. Leave floating or tie to GND for mechanical robustness.
5 VOUT power_out Regulated 2.5V output (±2% accuracy). Delivers up to 500mA with 230mV dropout at IOUT=500mA. Requires a low-ESR ceramic output capacitor ≥1.0μF for stability; do not force this pin above VIN+0.3V (reverse current via the P-MOSFET parasitic diode can destroy the IC).

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-23-5L
Category Power Management (PMIC)
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • MD52E25QC3
  • MD52E28QC3
  • MD52E30QC3
  • MD52E33QC3
  • MD52E36QC3
  • MD52E40QC3
  • MD52E50QC3
  • MD52E25QA3
  • MD52E28QA3
  • MD52E30QA3
  • MD52E33QA3
  • MD52E36QA3
  • MD52E40QA3
  • MD52E50QA3
  • MD52A25PA1
  • MD52A28PA1
  • MD52A30PA1
  • MD52A33PA1
  • MD52A36PA1
  • MD52A40PA1
  • MD52A50PA1
  • MD52E25WB6
  • MD52E28WB6
  • MD52E30WB6
  • MD52E33WB6
  • MD52E36WB6
  • MD52E40WB6
  • MD52E50WB6

CAD (KiCad official)

  • Symbol: MD52E25QC3
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Shanghai Mingda Microelectronics datasheet (None pp, sha256 4168b8cf3e52f15f, 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