component
MD8830
Public Made by Adomby adom
Shanghai Mingda Microelectronics DC-DC Converters, SOT-23-3L. 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
markdownMD8830
Shanghai Mingda Microelectronics · DC-DC Converters · SOT-23-3L
MD8830 from Shanghai Mingda Microelectronics, in a SOT-23-3L. 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 | VSS | power_in | Ground pin (接地引脚) of the MD88XX boost regulator; the datasheet gives no electrical limit for this pin beyond the VSS reference used by the absolute maximum ratings. |
| 2 | VOUT | power_out | Output voltage pin that monitors the output and supplies the internal circuitry; absolute maximum VOUT voltage is VSS-0.3 V to VSS+12 V. |
| 3 | LX | output | Switching pin (开关引脚) that drives the inductor; absolute maximum LX voltage is VSS-0.3 V to VSS+12 V and LX current is 1000 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-3L |
| 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 |
|---|---|---|---|---|---|---|---|
| 输出电压精度 | △Vout | -2.5 | 2.5 | % | 4 | ||
| 输入电压 | Vin | 10 | V | 4 | |||
| 启动电压 | Vstart | 0.75 | 0.9 | V | Iout=1mA, Vin: 0→2V (Fig.1) | 4 | |
| 保持电压 | Vhold | 0.7 | V | Iout=1mA, Vin: 2→0V (Fig.1) | 4 | ||
| 输入电流 | Iin | 15 | 20 | uA | Iout=0mA (Fig.1) | 4 | |
| 静态功耗 | IDD | 4 | 7 | uA | VS = VOUT+0.5V (Fig.2) | 4 | |
| 关断电流 | ISHDN | 0.5 | uA | CE=GND | 4 | ||
| CE 高电平 | VCEH | 0.9 | V | 4 | |||
| CE 低电平 | VCEL | 0.6 | V | 4 | |||
| 功率管导通电阻 | RSWON | 0.4 | 0.5 | Ω | 4 | ||
| 开关管漏电流 | ILEAK | 0.5 | uA | VS = VOUT+0.5V, VX=6V (Fig.3) | 4 | ||
| 振荡频率 | FOSC | 300 | 350 | 400 | kHz | VS = VOUT*0.95 (Fig.3) | 4 |
| 占空比 | DOSC | 65 | 75 | 85 | % | VS = VOUT*0.95 (Fig.3) | 4 |
| VOUT电压 | VOUT | 12 | V | 3 | |||
| LX电流 | ILX | 1000 | mA | 3 | |||
| 允许功耗 (SOT-23-3) | PD | 0.25 | W | 3 | |||
| 工作温度范围 | Tmin-max | -40 | 85 | ℃ | 3 | ||
| 存储温度范围 | Tstorage | -40 | 125 | ℃ | 3 | ||
| 焊接温度和时间 | 260 | ℃ | 10 S | 3 |
CAD (KiCad official)
- Symbol:
MD8830 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
md8830-etched.step/md8830-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md8830.step/md8830.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (13 pp, sha256
498c84c06ae74d6e, retrieved 2026-10-20, 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).