component
MD52E25QC3
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Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+73@@ -0,0 +1,73 @@+# 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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918005271310337) (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](docs/md52e25qc3-datasheet.pdf)
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