component
MD5350-1
Public Made by Adomby adom
Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout cross-checked by two models against the datasheet, 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
markdownMD5350-1
Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L
MD5350-1 from Shanghai Mingda Microelectronics, in a SOT-23-3L. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground pin of the regulator, reference for VIN and VOUT. |
| 2 | VOUT | power_out | Regulated 5.0V ±2% output, up to 500mA with 1A current limit; keep VOUT no more than 0.3V above VIN and use an output capacitor of 2.2µF or more. |
| 3 | VIN | power_in | Input supply, operating up to 10V (absolute maximum 12V), with an input capacitor of 1.0µF or more. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-3L |
| Category | Power Management (PMIC) |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output voltage tolerance (catalog, MD5350-1 5.0V) | -2 | 2 | % | 2 | |||
| Input voltage (electrical table) | VIN | 10 | V | 3 | |||
| Input voltage (absolute maximum) | VIN | 12 | V | 2 | |||
| Input stability | ΔVOUT1/ΔVIN*VOUT | 0.05 | 0.2 | %/V | VOUT+1V≤VIN≤10V, IOUT=10mA | 3 | |
| Load stability | ΔVOUT2 | 20 | 40 | mV | VIN=VOUT+1V, 1mA≤IOUT≤100mA | 3 | |
| Output voltage temperature coefficient | ΔVOUT/(ΔTa*VOUT(S)) | -100 | 50 | 100 | ppm/℃ | VIN=VOUT+1V, IOUT=1mA, -40℃≤Ta≤125℃ | 3 |
| Input-output voltage differential (dropout), VOUT=5V | VDROP | 400 | 900 | mV | IOUT=500mA, VOUT=5V | 3 | |
| Current consumption (quiescent) | ISS1 | 1.2 | 2.5 | uA | VIN=10V, no load | 3 | |
| Operating ambient temperature range | TOPR | -40 | 85 | ℃ | 2 | ||
| Storage ambient temperature range | TSTG | -40 | 125 | ℃ | 2 | ||
| Allowable power dissipation, SOT-23 | PD | 250 | mW | Ta=25℃ | 2 | ||
| Input capacitor (CIN) | CIN | 1 | µF | 8 | |||
| Output capacitor (CL), tantalum | CL | 2.2 | µF | tantalum capacitor | 8 | ||
| Output capacitor (CL), aluminum electrolytic | CL | 10 | µF | aluminum electrolytic capacitor | 8 | ||
| Output current (guaranteed) | IOUT | 500 | mA | VIN=VOUT+1V | 3 | ||
| Current limit | ILIM | 1 | A | VIN=VOUT+1V | 3 | ||
| Power supply rejection ratio, 100Hz | PSRR | 44 | dB | f=100Hz, IOUT=10mA | 3 | ||
| Power supply rejection ratio, 1kHz | PSRR | 23 | dB | f=1kHz, IOUT=10mA | 3 | ||
| Thermal resistance junction to board, SOT-23 | RθJB | 200 | ℃/W | Mounted on JEDEC 4-layer (2s2p) PCB test board | 2 | ||
| Output voltage (nominal, MD5350-1) | VOUT | 5 | V | VIN=VOUT+1V, IOUT=50mA | 3 |
CAD (KiCad official)
- Symbol:
MD5350-1 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
md5350-1-etched.step/md5350-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md5350-1.step/md5350-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (12 pp, sha256
248fdd6b5737ce18, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).