component
MG6228N3B-33
Public Made by Adomby adom
Megain Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, 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
markdownMG6228N3B-33
Megain · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
MG6228N3B-33 from Megain, 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, the common return for the regulator (datasheet page 2 pin table; no electrical limit is stated for this pin specifically). |
| 2 | VIN | power_in | Input voltage pin; recommended operating range is 2.5 V to 6 V, and the absolute maximum rating is -0.3 V to +6.5 V. |
| 3 | VOUT | power_out | Regulated output voltage pin; the output is selectable from 1.8 V to 5 V in the listed options, with ±2% output accuracy. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Megain |
| 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 |
|---|---|---|---|---|---|---|---|
| 输入电压范围 (Input voltage range) | VIN | 2.5 | 6 | V | 4 | ||
| 输出电压精度 (Output voltage accuracy) | ΔVOUT | -2 | 2 | % | TJ = 25⁰C | 4 | |
| 负载调整率 (Load regulation) | ΔVLOAD | 8 | 20 | mV | IOUT = 1mA ~ 100mA, VIN = VOUT+1V or 3.5V (whichever greater) | 3 | |
| 负载调整率 (Load regulation) | ΔVLOAD | 25 | 60 | mV | IOUT = 1mA ~ 300mA, VIN = VOUT+1V or 3.5V (whichever greater) | 3 | |
| 负载调整率 (Load regulation) | ΔVLOAD | 40 | 100 | mV | IOUT = 1mA ~ 500mA, VIN = VOUT+1V or 3.5V (whichever greater) | 3 | |
| 压差电压, VOUT ≥ 2.5V (Dropout voltage) | VDROP | 120 | mV | IOUT = 100mA | 4 | ||
| 压差电压, VOUT ≥ 2.5V (Dropout voltage) | VDROP | 360 | mV | IOUT = 300mA | 4 | ||
| 压差电压, VOUT ≥ 2.5V (Dropout voltage) | VDROP | 660 | mV | IOUT = 500mA | 4 | ||
| 静态电流 (Quiescent current) | IQ | 0.5 | 1 | uA | IOUT = 0mA | 4 | |
| 关断电流 (Shutdown current) | ISD | 30 | nA | VEN = 0V | 4 | ||
| 启用高电平 (Enable high level) | VENHI | 0.8 | V | 4 | |||
| 启用低电平 (Enable low level) | VENLO | 0.2 | V | 4 | |||
| 限制电流 (Current limit) | ICL | 550 | 700 | mA | VIN = VOUT+1V or 3.5V (whichever greater) | 4 | |
| 输出关闭放电电阻 (Output discharge resistance) | RDIS | 10 | Ω | VEN = 0V, between VOUT and GND | 4 | ||
| 纹波抑制 (PSRR) | PSRR | 75 | dB | IOUT = 10mA, f = 1kHz | 4 | ||
| 纹波抑制 (PSRR) | PSRR | 80 | dB | IOUT = 10mA, f = 10KHz | 4 | ||
| 热关断 (Thermal shutdown) | TSD | 150 | ⁰C | 4 | |||
| 热关断滞后 (Thermal shutdown hysteresis) | TSDHY | 20 | ⁰C | 4 | |||
| 输入电压 (Input voltage, recommended) | VIN | 2.5 | 6 | V | 3 | ||
| 工作温度 (Operating temperature) | TA | -40 | 85 | ⁰C | 3 | ||
| 结温范围 (Junction temperature range) | TJ | -40 | 125 | ⁰C | 3 | ||
| 输入电压 (Input voltage, absolute maximum) | VIN | -0.3 | 6.5 | V | 3 | ||
| EN 输入电压 (EN input voltage, absolute maximum) | VEN | -0.3 | 6.5 | V | 3 | ||
| 结温 (Junction temperature, absolute maximum) | TJ | 150 | ⁰C | 3 | |||
| 功耗 (Power dissipation, SOT89-3) | PD | 0.5 | W | SOT89-3 | 3 | ||
| 焊接温度 (Soldering temperature) | 300 | ⁰C | t ≤ 10S | 3 | |||
| 贮存温度 (Storage temperature) | Tstg | -65 | 150 | ⁰C | 3 | ||
| 热阻 结到环境 (Junction-to-ambient thermal resistance, SOT89-3) | RθJA | 200 | ⁰C/W | SOT89-3, JEDEC 51-3 high-K four-layer board, TA = 25°C | 3 |
CAD (KiCad official)
- Symbol:
MG6228N3B-33 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
mg6228n3b-33-etched.step/mg6228n3b-33-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mg6228n3b-33.step/mg6228n3b-33.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Megain datasheet (9 pp, sha256
c1e78e55e0bf9aa9, 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-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).