component
LM78L15
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
markdownLM78L15
HTC Korea TAEJIN Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3
LM78L15 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 output voltage, nominal 15 V for the LM78L15, with output current up to 100 mA. |
| 2 | GND | power_in | Ground reference pin for the regulator. |
| 3 | VIN | power_in | Unregulated input voltage; the recommended input range for the LM78L15 is 17.5 V to 30 V, and the absolute maximum input voltage for LM78L12 to LM78L18 is 35 V. |
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 | VOUT | 14.4 | 15 | 15.6 | V | 25℃; 1mA ≤ Io ≤ 40mA; 17.5V ≤ VIN ≤ 30V | 8 |
| Output Voltage | VOUT | 14.25 | 15 | 15.75 | V | 1mA ≤ Io ≤ 70mA; -30℃ ~ 125℃ | 8 |
| Line Regulation | ΔVLINE | 65 | 300 | mV | 17.5V ≤ VIN ≤ 30V | 8 | |
| Line Regulation | ΔVLINE | 58 | 250 | mV | 19V ≤ VIN ≤ 30V; 25℃ | 8 | |
| Load Regulation | ΔVLOAD | 25 | 150 | mV | 1mA ≤ Io ≤ 100mA | 8 | |
| Load Regulation | ΔVLOAD | 15 | 75 | mV | 1mA ≤ Io ≤ 40mA; 25℃ | 8 | |
| Bias Current | IB | 4.2 | 6.5 | mA | 25℃ | 8 | |
| Bias Current | IB | 6 | mA | 125℃ | 8 | ||
| Bias Current Change | ΔIB | 1.5 | mA | 19V ≤ VIN ≤ 30V | 8 | ||
| Bias Current Change | ΔIB | 0.1 | mA | 1mA ≤ Io ≤ 40mA; -30℃ ~ 125℃ | 8 | ||
| Dropout Voltage | VD | 1.7 | V | 25℃ | 8 | ||
| Ripple Rejection | RR | 37 | 44 | dB | 18.5V ≤ VIN ≤ 28.5V, f=120Hz; 25℃ | 8 | |
| Input Voltage | VIN | 17.5 | 30 | V | 2 | ||
| Output Current | Io | 100 | 100 | mA | 2 | ||
| Operating Virtual Junction Temperature | TJ | -40 | 125 | ℃ | 2 | ||
| Input Voltage | VIN | 35 | V | Printed for LM78L12 ~ LM78L18 group, which includes LM78L15 | 1 | ||
| Maximum Power Dissipation | PDMax | 0.77 | W | TA = 25°C; TO-92 | 1 | ||
| Thermal Resistance Junction-To-Ambient | θJA | 162 | ℃/W | TO-92 | 1 | ||
| Lead Temperature | TSOL | 260 | ℃ | Soldering, 10 sec | 1 | ||
| Storage Temperature Range | TSTG | -65 | 150 | ℃ | 1 | ||
| Operating Junction Temperature Range | TJOPR | -40 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
LM78L15 - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
lm78l15-etched.step/lm78l15-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm78l15.step/lm78l15.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 2026-10-19, 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).