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MD7601A40
Public Made by Adomby adom
Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), TO-252. 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
markdownMD7601A40
Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · TO-252
MD7601A40 from Shanghai Mingda Microelectronics, in a TO-252. 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, operating range 2.2V to 40V (absolute maximum -0.3 to 45V), with a recommended input capacitor of 2.2µF or more placed close to the IC. |
| 2 | GND | power_in | Ground pin; the VOUT pin must not exceed VIN+0.3V relative to the supply. |
| 3 | VOUT | power_out | Regulated 4.0V output (MD7601A40) delivering up to 1A with 1.8A current limit and foldback, requiring an output capacitor of 2.2µF or more. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | TO-252 |
| Category | Power Supply Chip |
| 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 | 1.02 | ×VOUT(S) | VIN=VOUT(S)+2V, IOUT=10mA | 3 | |
| Dropout Voltage | VDROP | 4 | 8 | mV | IOUT=1mA | 3 | |
| Dropout Voltage | VDROP | 1000 | 1500 | mV | IOUT=1A | 3 | |
| Line Regulation | 0.01 | 0.02 | %/V | VOUT(S)+2V≤VIN≤40V, IOUT=1mA | 3 | ||
| Load Regulation | ΔVOUT | 20 | 80 | mV | VIN=VOUT(S)+2V, 1mA≤IOUT≤300mA, VOUT(S)≤10V | 3 | |
| Temperature Stability | -50 | 50 | ppm/℃ | VIN=VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤85℃ | 3 | ||
| GND Current | IGND | 10 | 30 | uA | no load, VOUT(S)≤10V | 3 | |
| Input Voltage | VIN | 2.2 | 40 | V | 3 | ||
| Input Voltage (absolute maximum) | VIN | -0.3 | 45 | V | Ta=25℃ | 2 | |
| Power Dissipation TO-252 | PD | 1800 | mW | TO 252 | 2 | ||
| Operating Ambient Temperature | Topr | -40 | 85 | ℃ | 2 | ||
| Storage Temperature | Tstg | -40 | 125 | ℃ | 2 | ||
| ESD Protection | ESD HBM | 2000 | V | HBM | 2 | ||
| GND Current | IGND | 460 | uA | IOUT=100mA | 3 | ||
| Maximum Output Current | IOUTMAX | 1 | A | 3 | |||
| Current Limit | ILIM | 1.8 | A | VIN=VOUT(S)+2V, VOUT=0.95×VOUT(S) | 3 | ||
| Short Circuit Current | ISHORT | 50 | mA | VIN=VOUT(S)+2V, VOUT=0V, VOUT(S)≤10V | 3 | ||
| PSRR | PSRR | 84 | dB | f=10Hz, VOUT(S)=3.6V | 3 | ||
| PSRR | PSRR | 80 | dB | f=100Hz, VOUT(S)=3.6V | 3 | ||
| PSRR | PSRR | 58 | dB | f=1kHz, VOUT(S)=3.6V | 3 | ||
| Over Temperature Protection | OTP | 180 | ℃ | IOUT=1mA | 3 |
CAD (KiCad official)
- Symbol:
MD7601A40 - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
md7601a40-etched.step/md7601a40-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md7601a40.step/md7601a40.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (12 pp, sha256
9797424939fb0df2, retrieved 2026-10-23, 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).