component
MD57E10QC3
Public Made by Adomby adom
Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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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README
markdownMD57E10QC3
Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L
MD57E10QC3 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 | Unregulated input supply. Operating range 2.2 V to 5.5 V (absolute max -0.3 V to 6.0 V). Bypass with a 1.0 uF or larger ceramic capacitor to GND placed close to the pin. |
| 2 | GND | power_in | Device ground / return for input and output capacitors and internal reference. Connect to the system ground plane with a low-impedance path. |
| 3 | EN | input | Enable input. Drive above VENH (min 0.85 V, max 5.5 V) to enable the regulator; drive below VENL (max 0.35 V) to disable and activate the 240 ohm typical automatic output discharge. Internally pulled low through a 1 Mohm resistor to GND. Input current +/-0.1 uA at VIN = 5.5 V. Do not leave floating in noisy environments. |
| 4 | NC | unconnected | No internal connection. Leave floating or tie to GND for mechanical/thermal purposes; do not use as a routing node. |
| 5 | VOUT | power_out | Regulated LDO output. Fixed 1.0 V (QC3 = SOT-23-5L, 10 = 1.0 V output option) at up to 300 mA with +/-2% tolerance. Requires a 1.0 uF (1 uF to 10 uF) ceramic output capacitor with ESR 5 mohm to 500 mohm; the output capacitor may be placed up to 10 cm from the pin. |
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.
MD57E10QC3MD57E10QC3QA3MD57E10QC3WB6
CAD (KiCad official)
- Symbol:
MD57E10QC3 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
md57e10qc3-etched.step/md57e10qc3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md57e10qc3.step/md57e10qc3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (13 pp, sha256
da256fddd9468a88, 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).