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LM78L05A
Public Made by Adomby adom
HTC Korea TAEJIN Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-3. 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
markdownLM78L05A
HTC Korea TAEJIN Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3
LM78L05A from HTC Korea TAEJIN Tech, in a TO-92-3. 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 | VOUT | power_out | Regulated 5V output of the LM78L05A, rated for up to 100mA output current (Io 100mA max). |
| 2 | GND | power_in | Ground reference pin for the regulator. |
| 3 | VIN | power_in | Unregulated input voltage; recommended 7V to 20V for the LM78L05, with absolute maximum input voltage of 30V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | TO-92-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage (25℃, 1mA ≤ Io ≤ 40mA) | VOUT | 4.9 | 5 | 5.1 | V | 25℃; 1mA ≤ Io ≤ 40mA | 5 |
| Output voltage (1mA ≤ Io ≤ 40mA, 7V ≤ VIN ≤ 20V) | VOUT | 4.875 | 5 | 5.125 | V | 1mA ≤ Io ≤ 40mA; 7V ≤ VIN ≤ 20V (Note 2) | 5 |
| Output voltage (1mA ≤ Io ≤ 70mA, over temperature) | VOUT | 4.875 | 5 | 5.125 | V | 1mA ≤ Io ≤ 70mA; -30℃ ~ 125℃ (Note 2) | 5 |
| Line regulation | ΔVLINE | 32 | 150 | mV | 7V ≤ VIN ≤ 20V | 5 | |
| Line regulation (25℃) | ΔVLINE | 26 | 100 | mV | 8V ≤ VIN ≤ 20V; 25℃ | 5 | |
| Load regulation | ΔVLOAD | 15 | 60 | mV | 1mA ≤ Io ≤ 100mA | 5 | |
| Load regulation (25℃) | ΔVLOAD | 8 | 30 | mV | 1mA ≤ Io ≤ 40mA; 25℃ | 5 | |
| Quiescent (bias) current, 25℃ | IB | 3.8 | 6 | mA | 25℃ | 5 | |
| Quiescent (bias) current, 125℃ | IB | 5.5 | mA | 125℃ | 5 | ||
| Bias current change (line) | ΔIB | 1.5 | mA | 9V ≤ VIN ≤ 20V | 5 | ||
| Bias current change (load) | ΔIB | 0.1 | mA | 1mA ≤ Io ≤ 40mA; -30℃ ~ 125℃ | 5 | ||
| Ripple rejection | RR | 41 | 49 | dB | 8V ≤ VIN ≤ 18V, f=120Hz; 25℃ | 5 | |
| Output noise voltage | VN | 42 | uV | 10Hz ≤ f ≤ 100kHz; 25℃ | 5 | ||
| Dropout voltage | VD | 1.7 | V | 25℃ | 5 | ||
| Input voltage (recommended operating) | VIN | 7 | 20 | V | LM78L05 / LM78L05A | 2 | |
| Output current | Io | 100 | 100 | mA | 2 | ||
| Operating virtual junction temperature | TJ | -40 | 125 | ℃ | 2 | ||
| Input voltage (absolute maximum) | VIN | 30 | V | LM78L05 ~ LM78L10 | 1 | ||
| Maximum power dissipation | PDMax | 0.77 | W | TO-92; TA = 25℃ | 1 | ||
| Thermal resistance junction-to-ambient | θJA | 162 | ℃/W | TO-92 | 1 | ||
| Lead temperature (soldering, 10 sec) | TSOL | 260 | ℃ | 10 sec | 1 | ||
| Storage temperature range | TSTG | -65 | 150 | ℃ | 1 | ||
| Operating junction temperature range (absolute maximum) | TJOPR | -40 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
LM78L05A - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
lm78l05a-etched.step/lm78l05a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm78l05a.step/lm78l05a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (11 pp, sha256
b5b1ed6d19d1619d, retrieved 2026-10-18, 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).