component
H78L05U
Public Made by Adomby adom
HXY MOSFET Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. 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
markdownH78L05U
HXY MOSFET · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
H78L05U from HXY MOSFET, in a SOT-89. 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 | VOUT | power_out | Output voltage pin, the regulated output of the H78LxxU series, which can deliver up to 150mA of output current. |
| 2 | GND | power_in | Ground pin; the datasheet requires a common ground between the input and output voltages. |
| 3 | VIN | power_in | Input voltage pin, which must remain typically 2.0 V above the output voltage even during the low point of the input ripple voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOT-89 |
| 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 |
|---|---|---|---|---|---|---|---|
| Line Regulation | LNR | -150 | 150 | mV | VIN=7V~18V, Io=20mA | 3 | |
| Line Regulation | LNR | -100 | 100 | mV | VIN=8V~18V, Io=20mA | 3 | |
| Load Regulation | LDR | -100 | 100 | mV | VIN=10V, Io=1mA~100mA | 3 | |
| Load Regulation | LDR | -30 | 30 | mV | VIN=10V, Io=1mA~40mA | 3 | |
| Quiescent Current | IQ | 5.5 | mA | VIN=10V, IOUT=40mA | 3 | ||
| Quiescent Current Change | △IQ | -1.5 | 1.5 | mA | VIN=8V~18V, IO=20mA | 3 | |
| Quiescent Current Change | △IQ | -0.1 | 0.1 | mA | VIN=10V, IOUT=1mA~40mA | 3 | |
| Junction temperature | Tj | -55 | 150 | °C | 2 | ||
| Storage temperature | Tstr | -55 | 155 | °C | 2 | ||
| Operation temperature | Topr | -40 | 125 | °C | 2 | ||
| Max Power | Pmax | 0.5 | W | 2 | |||
| Max Output current | 150 | mA | 2 | ||||
| Soldering temperature | 260 | °C | 2 | ||||
| ESD Rating (HBM) | ESD | 2 | kV | HBM | 2 | ||
| Output voltage accuracy | -5 | 5 | % | Feature list: output voltage accuracy tolerance ±5% | 1 | ||
| Dropout Voltage | VDIF | 2 | V | Ta=25℃, Io=100mA | 3 | ||
| Output noise Voltage | VN | 40 | uV/Vo | F=10Hz to 100KHz | 3 | ||
| Ripple Rejection | PSRR | 80 | dB | Ta=25℃, f=120Hz, Io=40mA, VIN=8V~20V | 3 |
CAD (KiCad official)
- Symbol:
H78L05U - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
h78l05u-etched.step/h78l05u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);h78l05u.step/h78l05u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HXY MOSFET datasheet (7 pp, sha256
00f4edaa2bcf11a1, retrieved 2026-10-19, tier: lcsc) - 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).