component
HG7144MK-1
Public Made by Adomby adom
HGSEMI 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
markdownHG7144MK-1
HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
HG7144MK-1 from HGSEMI, 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 reference for the regulator (datasheet pin table: 地 / ground). |
| 2 | VIN | power_in | Input pin; the input voltage must not exceed 36V (absolute maximum supply voltage -0.3V to +36V), and the output capacitor should be placed close to the VIN and VOUT pins. |
| 3 | VOUT | power_out | Regulated output pin for the fixed output voltage (2.5V to 5.0V depending on variant; the HG7144-1 is 4.4V); maximum output current 100mA, and an output capacitor greater than 2.2uF to ground is required. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| 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 (Input voltage) | VIN | 36 | V | 4 | |||
| 输出电压 (Output voltage) | VOUT | 4.312 | 4.4 | 4.488 | V | VIN=VOUT+2V, IOUT=10mA | 4 |
| 输出电流 (Output current) | IOUT | 70 | 100 | mA | VIN=VOUT+2V | 4 | |
| 负载调节率 (Load regulation) | △VOUT | 25 | 60 | mV | VIN=VOUT+2V, 1mA ≤ IOUT ≤ 50mA | 4 | |
| Dropout 电压 (Dropout voltage) | VDIF | 2 | 4 | mV | IOUT=1mA, △Vo=2% | 4 | |
| 静态电流 (Quiescent current, no load) | ISS | 2 | 3 | uA | 无负载 (no load) | 4 | |
| 输入电压调节率 (Line regulation) | 0.2 | %/V | Vo+1V≤VIN≤36V, IOUT=1mA | 4 | |||
| 电源供应电压 (Supply voltage) | -0.3 | 36 | V | 2 | |||
| 工作环境温度 (Operating ambient temperature) | -40 | 85 | ℃ | 2 | |||
| 储存温度范围 (Storage temperature) | -45 | 140 | ℃ | 2 | |||
| 热阻 (Thermal resistance, junction-ambient, SOT89) | θJA | 200 | ℃/W | 无环境气流、无散热片 (still air, no heatsink), SOT89 package | 2 | ||
| 功耗 (Power dissipation, SOT89) | PD | 0.5 | W | Ta=25℃ | 2 | ||
| 输出电容 (Output capacitor to GND) | 2.2 | uF | output pin to GND; part relies on output capacitor ESR for compensation | 5 | |||
| 温度系数 (Temperature coefficient) | 100 | ppm/℃ | IOUT=10mA, -40℃<Ta<85℃ | 4 |
CAD (KiCad official)
- Symbol:
HG7144MK-1 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
hg7144mk-1-etched.step/hg7144mk-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hg7144mk-1.step/hg7144mk-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (8 pp, sha256
1499003a238fa4c7, retrieved 2026-10-18, 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).