component
MD5110
Public Unreviewedby Ray
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
markdownMD5110
Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L
MD5110 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 1.4 V to 7.0 V (absolute max 8.0 V). Bypass with a >=1.0 µF ceramic capacitor placed close to the pin. |
| 2 | GND | power_in | Device ground / reference return. Typical GND (quiescent) current is 0.5 µA no-load; 40 µA at I_OUT = 100 mA. |
| 3 | CE | input | Chip-Enable (active-high). V_CEH = 1.0 V min / 6.0 V max enables the regulator; V_CEL <= 0.38 V disables it and activates the C_OUT auto-discharge switch between VOUT and GND (R_DCHG ~450 Ω typ). Do not leave floating. |
| 4 | NC | unconnected | No internal connection on the SOT23-5L package. Leave floating or tie to GND for mechanical reasons only. |
| 5 | VOUT | power_out | Regulated output from the internal P-channel MOSFET pass device. Factory-trimmed fixed output (see ordering; MD5110 is a customized voltage per note 1*, 1.2-5.0 V range). Max continuous current 300 mA, current limit 470 mA typ, short-circuit foldback ~65 mA. Requires >=0.1 µF low-ESR ceramic output cap. Do not force VOUT above VIN+0.3 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-5L |
| Category | PMIC |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
MD5110 - 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 (14 pp, sha256
b9016866a24d108a, 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).