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LM7805L-TA3-T

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UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM7805L-TA3-T

UTC Unisonic Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220

LM7805L-TA3-T from UTC Unisonic Tech, in a TO-220. 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 Input power_in Unregulated input supply; the absolute maximum input voltage is 35 V for the 5 V to 18 V output versions (VOUT=5~18V).
2 GND power_in Common ground return; the notes for use require the GND pin to be at the minimum potential in all operating conditions.
3 Output power_out Regulated 5 V output rated for up to 1 A (IOUT max 1 A); the notes for use recommend a maximum output capacitance of 1000 µF.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
Package TO-220
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 (TJ=25°C) VOUT 4.8 5 5.2 V TJ =25°C, IOUT=5mA ~ 1.0A 4
Output Voltage (line/load full range) VOUT 4.75 5.25 V VIN =7.5V ~ 20V, IOUT=5mA ~ 1.0A, PD≤15W 4
Dropout Voltage VD 2 V TJ =25°C 4
Load Regulation VOUT 50 mV TJ =25°C, IOUT=5mA ~ 1.0A 4
Load Regulation VOUT 25 mV TJ =25°C, IOUT=0.25A ~ 0.75A 4
Line Regulation VOUT 50 mV VIN =7V ~ 25V, TJ =25°C 4
Line Regulation (IOUT=1.0A) VOUT 50 mV VIN =7.5V ~ 20V, TJ =25°C, IOUT=1.0A 4
Quiescent Current IQ 8 mA TJ =25°C, IOUT≤1.0A 4
Quiescent Current Change (line) IQ 1 mA VIN =7.5V ~ 20V 4
Quiescent Current Change (load) IQ 0.5 mA IOUT=5mA ~ 1.0A 4
Output Noise Voltage eN 40 μV 10Hz≤f≤100kHz 4
Temperature Coefficient of Vo Vo/T -0.6 mV/°C IOUT=5mA 4
Ripple Rejection RR 62 80 dB VIN =8V ~ 18V, f=120Hz, TJ =25°C 4
Peak Output Current IPEAK 1.8 A TJ =25°C 4
Input Voltage (VOUT=5~18V) VIN 35 V VOUT=5~18V 4
Output Current IOUT 1 A 4
Operating Junction Temperature TOPR -20 125 °C Operating temperature range applies unless otherwise specified 4
Storage Temperature TSTG -55 150 °C 4
Junction to Ambient (TO-220) θJA 65 °C/W TO-220/TO-220F 4
Junction to Case (TO-220) θJC 5 °C/W TO-220/TO-262 4

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 Notes: 1.The Maximum steady state usable output current are dependent on input voltage, heat sinking, lead length of the package and copper pattern of PCB. The data above represents pulse test conditi 9

CAD (KiCad official)

  • Symbol: LM7805L-TA3-T
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: lm7805l-ta3-t-etched.step / lm7805l-ta3-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm7805l-ta3-t.step / lm7805l-ta3-t.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: UTC Unisonic Tech datasheet (13 pp, sha256 d0d3a0ed9ce50c1d, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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