component
MD7333
Public Made by Adomby adom
Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 16d ago |
| viewers | 16d ago |
| md7333-etched.glb | 16d ago |
| md7333-etched.step | 16d ago |
| md7333-hero.glb | 16d ago |
| md7333-hero.overlay.json | 16d ago |
| md7333.glb | 16d ago |
| md7333.kicad_mod | 16d ago |
| md7333.kicad_sym | 16d ago |
| md7333.lbr | 16d ago |
| md7333.step | 16d ago |
| package.json | 16d ago |
| page.json | 16d ago |
| README.md | 16d ago |
MD7333
Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
MD7333 from Shanghai Mingda Microelectronics, in a SOT-89-3. 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 (VSS) pin, the leftmost lead in the SOT-89 package drawing. |
| 2 | VDD | power_in | Positive input supply (VIN); absolute maximum 18 V, recommended input capacitor 1.0 µF or more. |
| 3 | OUT | power_out | Regulated 3.3 V ±2% output (MD7333), up to 300 mA; needs an output capacitor of 2.2 µF or more (tantalum recommended) between VOUT and VSS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-89-3 |
| 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 | VOUT | 3.234 | 3.3 | 3.366 | V | VIN= 5.3V，IOUT=10mA | 4 |
| Output current | IOUT | 300 | mA | VIN= 5.3V | 4 | ||
| Input-output voltage difference (dropout) | Vdrop | 220 | mV | IOUT=100 mA | 4 | ||
| Input-output voltage difference (dropout) | Vdrop | 5 | mV | IOUT=1 mA | 4 | ||
| Input stability | △VOUT1/△VIN·VOUT | 0.05 | 0.2 | ％/V | 4.3V≤VIN≤15V IOUT=1mA | 4 | |
| Load stability | △VOUT2 | 60 | 100 | mV | VIN=5.3V 1.0mA≤IOUT≤300mA | 4 | |
| Output voltage temperature coefficient | △VOUT/△Ta·VOUT | -100 | 50 | 100 | Ppm/℃ | VIN=5.3V，IOUT=10mA -40℃≤Ta≤85℃ | 4 |
| Current consumption | ISS1 | 1.2 | 2.5 | uA | VIN=15V 无负载 | 4 | |
| Input voltage | VIN | 18 | V | 4 | |||
| Output short-circuit current | Ilim | 15 | 50 | mA | Vout=0V | 4 | |
| Input voltage (absolute maximum) | VIN | 18 | V | 2 | |||
| Power dissipation (absolute maximum) | PD | 300 | Mw | SOT_89 | 2 | ||
| Operating ambient temperature range | Topr | -40 | 85 | ℃ | 2 | ||
| Storage ambient temperature range (absolute maximum) | Tstg | -40 | 125 | ℃ | 2 | ||
| Input capacitor | CIN | 1 | µF | 6 | |||
| Output capacitor | CL | 2.2 | µF | 钽电容器 (tantalum) | 6 |
CAD (KiCad official)
- Symbol:
MD7333 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
md7333-etched.step/md7333-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md7333.step/md7333.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (13 pp, sha256
f5efc29fea38182c, retrieved 2026-10-19, 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).