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MD7136
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.
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MD7136
Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · SOT-89-3
MD7136 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 terminal (接地端); the datasheet gives no electrical limit for this pin. |
| 2 | VDD | power_in | Power supply input; the absolute maximum input voltage VIN is 18 V. |
| 3 | VOUT | power_out | Regulated output; VOUT must not exceed VIN+0.3 V (absolute maximum VOUT range Vss-0.3 to VIN+0.3 V), and the short-circuit output current is about 30 mA. |
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 | 3.492 | 3.6 | 3.708 | V | VIN= 5.6V, IOUT=10mA | 3 |
| Output current | IOUT | 25 | 30 | mA | VIN= 5.6V | 3 | |
| Input-output voltage difference (dropout) | Vdrop | 40 | 60 | mV | IOUT=1mA | 3 | |
| Input stability | ΔVOUT/ΔVIN·VOUT | 0.05 | 0.2 | ％/V | 4.6V≤VIN≤18V, IOUT=1mA | 3 | |
| Load stability | ΔVOUT2 | 60 | 100 | mV | VIN=5.6V, 1.0mA≤IOUT≤30mA | 3 | |
| Output voltage temperature coefficient | ΔVOUT/ΔTa·VOUT | -100 | 50 | 100 | ppm/℃ | VIN=5.6V, IOUT=10mA, -40℃≤Ta≤85℃ | 3 |
| Quiescent current | ISS | 1.2 | 5 | uA | VIN=18V 无负载 | 3 | |
| Input voltage (maximum operating) | Vmax | 18 | V | 3 | |||
| Output short-circuit current | Ishort | 30 | mA | Vout=0V | 3 | ||
| Input voltage | VIN | 18 | V | 2 | |||
| Allowable power dissipation | PD | 500 | mW | SOT89-3 | 2 | ||
| Operating ambient temperature range | Topr | -40 | 85 | ℃ | 2 | ||
| Storage ambient temperature range | Tstg | -40 | 125 | ℃ | 2 | ||
| Input capacitor | CIN | 1 | µF | 5 | |||
| Output capacitor (tantalum) | CL | 2.2 | µF | tantalum capacitor | 5 | ||
| Output capacitor (aluminum electrolytic) | CL | 10 | µF | aluminum electrolytic capacitor | 5 |
CAD (KiCad official)
- Symbol:
MD7136 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
md7136-etched.step/md7136-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md7136.step/md7136.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (12 pp, sha256
a3ed5d5344bdc5d5, retrieved 2026-10-28, 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-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).
# MD7136
**Shanghai Mingda Microelectronics** · Linear Voltage Regulators (LDO) · SOT-89-3
MD7136 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 terminal (接地端); the datasheet gives no electrical limit for this pin. |
| 2 | VDD | power_in | Power supply input; the absolute maximum input voltage VIN is 18 V. |
| 3 | VOUT | power_out | Regulated output; VOUT must not exceed VIN+0.3 V (absolute maximum VOUT range Vss-0.3 to VIN+0.3 V), and the short-circuit output current is about 30 mA. |
## 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 | 3.492 | 3.6 | 3.708 | V | VIN= 5.6V, IOUT=10mA | 3 |
| Output current | IOUT | 25 | 30 | | mA | VIN= 5.6V | 3 |
| Input-output voltage difference (dropout) | Vdrop | | 40 | 60 | mV | IOUT=1mA | 3 |
| Input stability | ΔVOUT/ΔVIN·VOUT | | 0.05 | 0.2 | ％/V | 4.6V≤VIN≤18V, IOUT=1mA | 3 |
| Load stability | ΔVOUT2 | | 60 | 100 | mV | VIN=5.6V, 1.0mA≤IOUT≤30mA | 3 |
| Output voltage temperature coefficient | ΔVOUT/ΔTa·VOUT | -100 | 50 | 100 | ppm/℃ | VIN=5.6V, IOUT=10mA, -40℃≤Ta≤85℃ | 3 |
| Quiescent current | ISS | | 1.2 | 5 | uA | VIN=18V 无负载 | 3 |
| Input voltage (maximum operating) | Vmax | | | 18 | V | | 3 |
| Output short-circuit current | Ishort | | 30 | | mA | Vout=0V | 3 |
| Input voltage | VIN | | | 18 | V | | 2 |
| Allowable power dissipation | PD | | | 500 | mW | SOT89-3 | 2 |
| Operating ambient temperature range | Topr | -40 | | 85 | ℃ | | 2 |
| Storage ambient temperature range | Tstg | -40 | | 125 | ℃ | | 2 |
| Input capacitor | CIN | 1 | | | µF | | 5 |
| Output capacitor (tantalum) | CL | 2.2 | | | µF | tantalum capacitor | 5 |
| Output capacitor (aluminum electrolytic) | CL | 10 | | | µF | aluminum electrolytic capacitor | 5 |
## CAD (KiCad official)
- Symbol: `MD7136`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `md7136-etched.step` / `md7136-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `md7136.step` / `md7136.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Shanghai Mingda Microelectronics datasheet](docs/md7136-datasheet.pdf) (12 pp, sha256 `a3ed5d5344bdc5d5`, retrieved 2026-10-28, 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`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/md7136-datasheet.pdf)