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MD7612A33PA1
Public Made by Adomby adom
Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), SOT-89-3. 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
markdownMD7612A33PA1
Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · SOT-89-3
MD7612A33PA1 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 pin. |
| 2 | VIN | power_in | Power input pin, operating range 2.2V to 40V (absolute maximum 45V), with a recommended input capacitor of 2.2µF or more. |
| 3 | VOUT | power_out | Regulated 3.3V output pin (±2%) delivering up to 1A, with a recommended output capacitor of 2.2µF or more, and must not exceed VIN+0.3V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| 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(S) | 0.98 | 1 | 1.02 | xVOUT(S) | VIN=VOUT(S)+2V, IOUT=10mA | 4 |
| Dropout Voltage | VDROP | 10 | 20 | mV | IOUT=10mA | 4 | |
| Dropout Voltage | VDROP | 1000 | 1800 | mV | IOUT=1A | 4 | |
| Line Regulation | 0.01 | 0.02 | %/V | VOUT(S)+2V≤VIN≤40V, IOUT=1mA | 4 | ||
| Load Regulation | VOUT2 | 20 | 40 | mV | VIN=VOUT(S)+2V, 1mA≤IOUT≤300mA, VOUT(S)≤5.3V | 4 | |
| Temperature Stability | -45 | 45 | ppm/℃ | VIN=VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤85℃ | 4 | ||
| GND Current | IGND | 0.8 | 1.6 | 2.5 | uA | No load, 3.0≤VOUT(S)≤5.3 | 4 |
| GND Current | IGND | 480 | uA | IOUT=100mA | 4 | ||
| Shutdown Current | ISHUT | 0.1 | 1 | uA | VIN=40V, VEN=0V | 4 | |
| Input Voltage | VIN | 2.2 | 40 | V | 4 | ||
| Maximum Output Current | IOUTMAX | 1 | A | 4 | |||
| Current Limit | ILIM | 1.6 | A | VIN=VOUT(S)+2V, VOUT=0.9×VOUT(S) | 4 | ||
| EN H Level Voltage | VENH | 1.6 | 40 | V | 4 | ||
| EN L Level Voltage | VENL | 0 | 0.5 | V | 4 | ||
| EN H Level Current | IENH | -0.1 | 0.1 | uA | VIN=40V, VEN=VIN | 4 | |
| EN L Level Current | IENL | -0.1 | 0.1 | uA | VIN=40V, VEN=0 | 4 | |
| Short Circuit Current | ISHORT | 230 | mA | VIN=VEN=VOUT(S)+2V, VOUT=0V | 4 | ||
| Power Supply Rejection Ratio | PSRR | 72 | dB | f=10Hz, VOUT(S)=3.6V | 4 | ||
| Power Supply Rejection Ratio | PSRR | 70 | dB | f=100Hz, VOUT(S)=3.6V | 4 | ||
| Power Supply Rejection Ratio | PSRR | 65 | dB | f=1kHz, VOUT(S)=3.6V | 4 | ||
| Over Temperature Protection | OTP | 155 | ℃ | IOUT=10mA | 4 | ||
| Input Voltage (absolute maximum) | VIN | -0.3 | 45 | V | 3 | ||
| Power Dissipation | PD | 1000 | mW | SOT-89-3L | 3 | ||
| Thermal Resistance | RθJB | 100 | ℃/W | SOT-89-3L, JEDEC 4layer (2s2p) PCB | 3 | ||
| Operating Ambient Temperature | Topr | -40 | 85 | ℃ | 3 | ||
| Storage Temperature | Tstg | -40 | 125 | ℃ | 3 | ||
| ESD Protection | ESD HBM | 6000 | V | HBM | 3 |
CAD (KiCad official)
- Symbol:
MD7612A33PA1 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
md7612a33pa1-etched.step/md7612a33pa1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md7612a33pa1.step/md7612a33pa1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (13 pp, sha256
84f8ab5be7d1946c, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).