component
MC78LC18NTRG
Public Made by Adomby adom
onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TSOT-23-5. 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
markdownMC78LC18NTRG
onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TSOT-23-5
MC78LC18NTRG from onsemi, in a TSOT-23-5. 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 | Power supply ground. |
| 2 | Vin | power_in | Positive power supply input voltage; the maximum rating is 12 V. |
| 3 | Vout | power_out | Regulated output voltage; the maximum rating is −0.3 V to Vin +0.3 V. |
| 4 | N/C | unconnected | No internal connection. |
| 5 | N/C | unconnected | No internal connection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TSOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage | Vin | 12 | V | 2 | |||
| Output Voltage (Vout) range vs Vin | Vout | -0.3 | V | Printed as −0.3 to Vin +0.3 | 2 | ||
| Power Dissipation (Case 483, NTR Suffix) | PD | 140 | mW | TA = 85°C | 2 | ||
| Thermal Resistance, Junction-to-Ambient (Case 483, NTR Suffix) | RJA | 280 | °C/W | Junction-to-ambient | 2 | ||
| Operating Junction Temperature | TJ | 125 | °C | 2 | |||
| Operating Ambient Temperature | TA | -40 | 85 | °C | 2 | ||
| Storage Temperature | Tstg | -55 | 150 | °C | 2 | ||
| Lead Soldering Temperature | Tsolder | 10 | sec | @ 260°C | 2 | ||
| Output Voltage (1.8 V) | Vout | 1.746 | 1.8 | 1.854 | V | TA = 25°C, Iout = 1.0 mA | 3 |
| Line Regulation | Regline | 0.05 | 0.2 | %/V | Vin = VO(nom.) + 1.0 V to 12 V, Iout = 1.0 mA | 3 | |
| Load Regulation | Regload | 40 | 60 | mV | Iout = 1.0 mA to 10 mA | 3 | |
| Output Current (1.8 V) | Iout | 35 | 50 | mA | 1.5 V, 1.8 V (Vin = 4.0 V) | 3 | |
| Dropout Voltage (1.6 V to 3.2 V output row) | Vin−Vout | 30 | 60 | mV | Iout = 1.0 mA, Measured at Vout −3.0% | 3 | |
| Quiescent Current | IQ | 1.1 | 3.6 | A | Iout = 1.0 mA to IO(nom.) | 3 |
CAD (KiCad official)
- Symbol:
MC78LC18NTRG - Footprint:
Package_TO_SOT_SMD:TSOT-23-5 - 3D model: TSOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
mc78lc18ntrg-etched.step/mc78lc18ntrg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc78lc18ntrg.step/mc78lc18ntrg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (13 pp, sha256
0d5c5a33ef7a10db, 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).