component
LM78L05ACMK
Public Made by Adomby adom
HGSEMI 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
markdownLM78L05ACMK
HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
LM78L05ACMK from HGSEMI, 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 | Regulated 5 V output (4.8 to 5.2 V at TJ = 25°C) delivering up to 100 mA, with internal current limiting and thermal shutdown. |
| 2 | GND | power_in | Ground reference for input and output; the exposed tab shown on the SOT-89-3 drawing is also labeled GND. |
| 3 | VIN | power_in | Unregulated input voltage, rated at 30 V maximum DC for the 5 V version and 7 to 20 V in the electrical characteristics. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 4.8 | 5 | 5.2 | V | TJ = 25°C | 5 |
| Output Voltage | VO | 4.75 | 5.25 | V | IO = 1 to 40 mA, VI = 7 to 20 V | 5 | |
| Line Regulation | VO | 150 | mV | VI = 7 to 20 V, TJ = 25°C | 5 | ||
| Line Regulation | VO | 100 | mV | VI = 8 to 20 V, TJ = 25°C | 5 | ||
| Load Regulation | VO | 60 | mV | IO = 1 to 100 mA, TJ = 25°C | 5 | ||
| Load Regulation | VO | 30 | mV | IO = 1 to 40 mA, TJ = 25°C | 5 | ||
| Quiescent Current | Id | 6 | mA | TJ = 25°C | 5 | ||
| Quiescent Current | Id | 5.5 | mA | TJ = 125°C | 5 | ||
| Quiescent Current Change | Id | 0.1 | mA | IO = 1 to 40 mA | 5 | ||
| Quiescent Current Change | Id | 1.5 | mA | VI = 8 to 20 V | 5 | ||
| Output Noise Voltage | eN | 40 | μV | B = 10 Hz to 100 kHz, TJ = 25°C | 5 | ||
| Supply Voltage Rejection | SVR | 41 | 49 | dB | VI = 8 to 18 V, f = 120 Hz, IO = 40 mA, TJ = 25°C | 5 | |
| Dropout Voltage | Vd | 1.7 | V | 5 | |||
| DC Input Voltage | VI | 30 | V | VO = 3.3 to 10 V | 4 | ||
| Output Current | IO | 100 | mA | 4 | |||
| Lead Temperature | TL | 260 | °C | Soldering, 10 seconds | 4 | ||
| Storage Temperature Range | Tstg | -40 | 150 | °C | 4 | ||
| Operating Junction Temperature Range | Top | 0 | 125 | °C | 4 |
CAD (KiCad official)
- Symbol:
LM78L05ACMK - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
lm78l05acmk-etched.step/lm78l05acmk-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm78l05acmk.step/lm78l05acmk.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (15 pp, sha256
8395135be00cf694, retrieved 2026-11-05, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).