component
MD7218D33UA2
Public Made by Adomby adom
Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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| md7218d33ua2-etched.step | 16d ago |
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MD7218D33UA2
Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2L
MD7218D33UA2 from Shanghai Mingda Microelectronics, in a TO-252-2L. 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 | VIN | power_in | Input supply pin; the absolute maximum rating is -0.3 V to 15 V, while the electrical characteristics table lists an input voltage range of 2.2 V to 18 V. |
| 2 | VOUT | power_out | Regulated output pin rated for up to 1 A; VOUT must not exceed VIN+0.3 V, because reverse current through parasitic diodes can destroy the IC. |
| 3 | GND | power_in | Ground reference pin, labelled 3 on the TO252-2L top view; the datasheet gives no further functional description for it. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | TO-252-2L |
| 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 (min/max printed as multiples of VOUT(S); VOUT(S)=3.3 V for this MPN) | VOUT(S) | 0.98 | 1.02 | V | VIN= VOUT(S)+2V, IOUT=1mA | 4 | |
| Output Voltage Accuracy | -2 | 2 | % | 1 | |||
| Dropout Voltage | VDROP | 4 | 8 | mV | IOUT=1mA | 4 | |
| Dropout Voltage | VDROP | 650 | 900 | mV | IOUT=1A | 4 | |
| Line Regulation | 0.01 | 0.02 | ％/V | VOUT(S)+2V≤VIN≤15V, IOUT=1mA | 4 | ||
| Load Regulation | VOUT2 | 80 | mV | VIN=VOUT(S)+2V, 1mA≤IOUT≤1A, VOUT(S)≤5.0V | 4 | ||
| Temperature Stability | -50 | 50 | ppm/℃ | VIN = VOUT(S)+2V, IOUT=1mA, -40℃≤Ta≤125℃ | 4 | ||
| GND Current | IGND | 1 | 1.6 | 2 | µA | no load, VOUT(S)≤5.0V | 4 |
| Input Voltage | VIN | 2.2 | 18 | V | 4 | ||
| Input Voltage (absolute maximum) | VIN | -0.3 | 15 | V | 3 | ||
| Operating Ambient Temperature | Topr | -40 | 85 | ℃ | 3 | ||
| Storage Temperature | Tstg | -40 | 125 | ℃ | 3 | ||
| Power Dissipation (TO252-2L) | PD | 1800 | mW | TO252-2L | 3 | ||
| Thermal Resistance RθJB (TO252-2L) | RθJB | 55 | ℃/W | TO252-2L, mounted on JEDEC standard 4-layer (2s2p) PCB test board | 3 | ||
| ESD Protection HBM | ESD HBM | 4000 | V | HBM | 3 |
CAD (KiCad official)
- Symbol:
MD7218D33UA2 - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252-2L (KiCad packages3D, STEP)
- 3D model files:
md7218d33ua2-etched.step/md7218d33ua2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md7218d33ua2.step/md7218d33ua2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (15 pp, sha256
a1ab1acfaf9f63a7, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).