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78L15L-T92-B

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UTC(Unisonic Tech) Linear Voltage Regulators (LDO), TO-92-2.54mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management ics78l15l-t92-bfactory-2.0.0extractor-text

Verified 78L15L-T92-B

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: 78L15L-T92-B · TO-92-2.54mm · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 8-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: TO-92_Inline
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-wl5o63pf/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ 78l15l-t92-b.kicad_sym✓ 78l15l-t92-b.kicad_mod✓ 78l15l-t92-b.step
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Contents

README

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78L15L-T92-B

UTC(Unisonic Tech) · Linear Voltage Regulators (LDO) · TO-92-2.54mm

78L15L-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 15V output (78L15, 14.40-15.60V at TJ=25°C) delivering up to 100mA, with a recommended 0.1μF bypass capacitor.
2 GND power_in Ground reference pin for input and output.
3 INPUT power_in Unregulated input voltage, absolute maximum 35V for 10-18V output versions, with a recommended 0.33μF bypass capacitor.

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
Output Voltage VOUT 14.4 15 15.6 V TJ=25°C 5
Output Voltage VOUT 14.25 15.75 V 17.5V≤VIN≤30V,IOUT=1mA-40mA 5
Load Regulation ΔVOUT 25 150 mV TJ=25°C, IOUT=1mA-100mA 5
Load Regulation ΔVOUT 15 75 mV TJ=25°C, IOUT=1mA-40mA 5
Line Regulation ΔVOUT 25 150 mV 17.5V≤VIN≤30V,TJ=25°C 5
Line Regulation ΔVOUT 15 75 mV 20V≤VIN≤30V,TJ=25°C 5
Quiescent Current IQ 2.2 6.5 mA VIN=23V,IOUT=0mA,TJ=25°C 5
Quiescent Current Change ΔIQ 1.5 mA 20V≤VIN≤30V 5
Quiescent Current Change ΔIQ 0.1 mA 1mA≤VIN≤40mA 5
Ripple Rejection RR 34 63 dB 18.5V≤VIN≤28.5V,f=120Hz, TJ=25°C 5
Output Noise Voltage eN 90 μV 10Hz≤f≤100kHz 5
Temperature Coefficient of VOUT ΔVO/ΔT -1.3 mV/°C IOUT=5mA 5
Dropout Voltage VD 1.7 V TJ=25°C 5
Input Voltage VIN 35 V VOUT=10~18V 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 85 °C 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: 78L15L-T92-B
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-2.54mm (KiCad packages3D, STEP)
  • 3D model files: 78l15l-t92-b-etched.step / 78l15l-t92-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 78l15l-t92-b.step / 78l15l-t92-b.glb are 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 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF