component
78L05L-T92-B
Public Made by Adomby adom
UTC(Unisonic Tech) Linear Voltage Regulators (LDO), TO-92-2.54mm. 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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Contents
README
markdown78L05L-T92-B
UTC(Unisonic Tech) · Linear Voltage Regulators (LDO) · TO-92-2.54mm
78L05L-T92-B from UTC(Unisonic Tech), in a TO-92-2.54mm. 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 output (5V for 78L05) delivering up to 100mA with a 0.1μF output bypass capacitor recommended. |
| 2 | GND | power_in | Ground reference pin common to input and output. |
| 3 | INPUT | power_in | Unregulated input voltage, absolute maximum 30V for 5-9V output versions, with a 0.33μF bypass capacitor recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC(Unisonic Tech) |
| Package | TO-92-2.54mm |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage (VOUT=5~9V) | VIN | 30 | V | VOUT=5~9V | 3 | ||
| Output Current | IOUT | 100 | mA | 3 | |||
| Power Dissipation TO-92 | PD | 625 | mW | TO-92/TO-92NL | 3 | ||
| Junction Temperature | TJ | 150 | °C | 3 | |||
| Operating Temperature | TOPR | -40 | 85 | °C | 3 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 3 | ||
| 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 | ΔVOUT | 15 | 60 | mV | TJ=25°C,IOUT=1mA-100mA | 3 | |
| Load Regulation | ΔVOUT | 8 | 30 | mV | TJ=25°C,IOUT=1mA-40mA | 3 | |
| Line Regulation | ΔVOUT | 8 | 150 | mV | 7V≤VIN≤20V,TJ=25°C | 3 | |
| Line Regulation | ΔVOUT | 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 | ΔIQ | 1.5 | mA | 8V≤VIN≤20V | 3 | ||
| Quiescent Current Change | ΔIQ | 0.1 | mA | 1mA≤VIN≤40mA | 3 | ||
| Ripple Rejection | RR | 41 | 80 | dB | 8V≤VIN≤20V,f=120Hz,TJ=25°C | 3 | |
| Output Noise Voltage | eN | 40 | μV | 10Hz≤f≤100kHz | 3 | ||
| Temperature coefficient of VOUT | ΔVO/ΔT | -0.65 | mV/°C | IOUT=5mA | 3 | ||
| Dropout Voltage | VD | 1.7 | V | TJ=25°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-B - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-2.54mm (KiCad packages3D, STEP)
- 3D model files:
78l05l-t92-b-etched.step/78l05l-t92-b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);78l05l-t92-b.step/78l05l-t92-b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UTC(Unisonic Tech) datasheet (8 pp, sha256
019cf0ff8e450efc, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).