component
MD5115
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
markdownMD5115
Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L
MD5115 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 | VOUT | power_out | Regulated LDO output, fixed 1.5 V ±2%, up to 300 mA (current limit ~470 mA typ). Requires COUT ≥ 0.1 µF ceramic (low-ESR compatible). Must not exceed VIN+0.3 V. Internally auto-discharged to GND through RDCHG (~450 Ω typ) when CE=0. |
| 2 | GND | power_in | Device ground reference. Typical GND (quiescent) current 0.5 µA no-load, 40 µA at 100 mA load. |
| 3 | CE | input | Chip enable (active high). VCEH ≥ 1.0 V (max 6.0 V) enables the regulator; VCEL ≤ 0.38 V shuts it down (shutdown IQ ~10 nA typ). Do not leave floating. Driving CE low also triggers the COUT auto-discharge path. |
| 4 | VIN | power_in | Unregulated supply input, operating range 1.4 V to 7.0 V (abs max 8.0 V). Bypass with CIN ≥ 1.0 µF placed close to the pin. Dropout ~60 mV at IOUT=100 mA. |
| 5 | EP | passive | Exposed thermal pad on package underside. Recommended to connect to GND plane for improved thermal dissipation (package PD = 100 mW). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-5L |
| Category | PMIC |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
MD5115 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
md5115-etched.step/md5115-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md5115.step/md5115.glbare the bare package body.
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).