component
78L05L-T92-K
Public Made by Adomby adom
UTC(Unisonic Tech) Linear Voltage Regulators (LDO), TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdown78L05L-T92-K
UTC(Unisonic Tech) · Linear Voltage Regulators (LDO) · TO-92-3
78L05L-T92-K from UTC(Unisonic 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 | OUTPUT | power_out | Regulated fixed output voltage terminal, rated for output current up to 100mA per the absolute maximum ratings. |
| 2 | GND | power_in | Ground reference terminal of the regulator. |
| 3 | INPUT | power_in | Unregulated input voltage terminal; absolute maximum input voltage is 30V for VOUT=5 |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC(Unisonic Tech) |
| Package | TO-92-3 |
| Category | Power Management ICs |
| 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 | 4.8 | 5 | 5.2 | V | TJ=25°C | 3 |
| Output Voltage | VOUT | 4.75 | 5.25 | V | 7V≤VIN≤20V,IOUT=1mA-40mA | 3 | |
| Load Regulation | VOUT | 15 | 60 | mV | TJ=25°C,IOUT=1mA-100mA | 3 | |
| Load Regulation | VOUT | 8 | 30 | mV | TJ=25°C,IOUT=1mA-40mA | 3 | |
| Line Regulation | VOUT | 8 | 150 | mV | 7V≤VIN≤20V,TJ=25°C | 3 | |
| Line Regulation | VOUT | 6 | 100 | mV | 8V≤VIN≤20V,TJ=25°C | 3 | |
| Quiescent Current | IQ | 2 | 5.5 | mA | VIN=10V,IOUT=0mA,TJ=25°C | 3 | |
| Quiescent Current Change | IQ | 1.5 | mA | 8V≤VIN≤20V | 3 | ||
| Quiescent Current Change | IQ | 0.1 | mA | 1mA≤VIN≤40mA | 3 | ||
| Temperature coefficient of VOUT | VO/T | 1 | mV/°C | IOUT=5mA | 3 | ||
| Ripple Rejection | RR | 60 | dB | 8V≤VIN≤20V,f=120Hz,TJ=25°C | 3 | ||
| Dropout Voltage | VD | 1.7 | V | TJ=25°C | 3 | ||
| Input Voltage | VIN | 30 | V | VOUT=5~9V | 3 | ||
| Output Current | IOUT | 100 | mA | 3 | |||
| Power Dissipation | PD | 625 | mW | TO-92/TO-92NL | 3 | ||
| Junction Temperature | TJ | 150 | °C | 3 | |||
| Operating Temperature | TOPR | -40 | 125 | °C | Guaranteed by design, not 100% tested (note 2) | 3 | |
| Storage Temperature | TSTG | -55 | 150 | °C | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | Note 1. The Maximum steady state usable output current is dependent on input voltage, heat sinking, lead length of the package and copper pattern of PCB. | 5 |
CAD (KiCad official)
- Symbol:
78L05L-T92-K - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
78l05l-t92-k-etched.step/78l05l-t92-k-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);78l05l-t92-k.step/78l05l-t92-k.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UTC(Unisonic Tech) datasheet (8 pp, sha256
81cd8edacd1fef82, retrieved 2026-10-26, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), 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).