component
MD7219E30QC3
Public Made by Adomby adom
Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), SOT-23-5L. 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
markdownMD7219E30QC3
Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · SOT-23-5L
MD7219E30QC3 from Shanghai Mingda Microelectronics, in a SOT-23-5L. 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 accepting 2.2V to 18V (absolute maximum 20V), to be decoupled with a 2.2uF input capacitor placed close to the IC. |
| 2 | GND | power_in | Ground pin for the regulator. |
| 3 | EN | input | Enable input, active high, with logic high 1.6V to 18V turning the output on and logic low 0V to 0.5V shutting it down. |
| 4 | NC | unconnected | No internal connection. |
| 5 | VOUT | power_out | Regulated 3.0V output (±2%) delivering up to 1A, with a 2.2uF low-ESR ceramic output capacitor and not to exceed VIN+0.3V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-5L |
| Category | Power Supply Chip |
| Pins | 5 |
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 | VOUT(S) | -2 | 2 | % | VIN=VOUT(S)+2V, IOUT=1mA | 4 | |
| Input Voltage (abs max) | VIN | -0.3 | 20 | V | 3 | ||
| Power Dissipation SOT23-5L | PD | 250 | mW | SOT23-5L | 3 | ||
| Operating Ambient Temperature | Topr | -40 | 85 | ℃ | 3 | ||
| Storage Temperature | Tstg | -40 | 125 | ℃ | 3 | ||
| ESD Protection HBM | ESD | 4000 | V | HBM | 3 | ||
| Thermal Resistance SOT23-5L | RθJA | 180 | ℃/W | SOT23-5L | 3 | ||
| Dropout Voltage | VDROP | 3 | 8 | mV | VOUT(S)=3.3V, IOUT=1mA | 4 | |
| Dropout Voltage | VDROP | 900 | 1300 | mV | VOUT(S)=3.3V, IOUT=1A | 4 | |
| Line Regulation | ΔVOUT/(ΔVIN·VOUT) | 0.01 | 0.02 | %/V | VOUT(S)+2V≤VIN≤18V, IOUT=1mA | 4 | |
| Temperature Stability | -50 | 50 | ppm/℃ | VIN=VOUT(S)+2V, IOUT=1mA, -40℃≤Ta≤125℃ | 4 | ||
| GND Current | IGND | 14 | 30 | µA | no load, VOUT(S)≤5.0V | 4 | |
| Shutdown Current | ISHUT | 0.1 | 1 | µA | VIN=18V, VEN=0 | 4 | |
| Input Voltage | VIN | 2.2 | 18 | V | 4 | ||
| Maximum Output Current | IOUTMAX | 1 | A | 4 | |||
| EN High Level Voltage | VENH | 1.6 | 18 | V | 4 | ||
| EN Low Level Voltage | VENL | 0 | 0.5 | V | 4 | ||
| EN High Level Current | IENH | -0.1 | 0.1 | µA | VIN=18V, VEN=VIN | 4 | |
| EN Low Level Current | IENL | -0.1 | 0.1 | µA | VIN=18V, VEN=0 | 4 | |
| Load Regulation | ΔVOUT2 | 80 | mV | VIN=VOUT(S)+2V, 1mA≤IOUT≤1A, VOUT(S)≤5.0V | 4 | ||
| GND Current | IGND | 420 | µA | IOUT=100mA | 4 | ||
| Current Limit | ILIM | 1.35 | A | VIN=VOUT(S)+2V, VOUT=0.95×VOUT(S) | 4 | ||
| PSRR | PSRR | 72 | dB | f=10Hz, IOUT=10mA | 4 | ||
| PSRR | PSRR | 80 | dB | f=100Hz, IOUT=10mA | 4 | ||
| PSRR | PSRR | 75 | dB | f=1kHz, IOUT=10mA | 4 | ||
| Short Circuit Current | ISHORT | 40 | mA | VIN=VEN=VOUT(S)+2.0V, VOUT=0V | 4 | ||
| Over Temperature Protection | OTP | 150 | ℃ | IOUT=1mA | 4 |
CAD (KiCad official)
- Symbol:
MD7219E30QC3 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
md7219e30qc3-etched.step/md7219e30qc3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md7219e30qc3.step/md7219e30qc3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (15 pp, sha256
0052f2803aae3218, retrieved 2026-10-23, tier: lcsc) - 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).