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EG78L05

EG Micro · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

EG78L05 from EG Micro, in a SOT-89-3. 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 VOUT power_out Regulated 5V output, supplying up to 100mA maximum output current with 4.82V to 5.18V output at Tj=25°C.
2 GND power_in Ground reference pin for the regulator.
3 VIN power_in Unregulated input voltage; absolute maximum input is 30V minimum rating for 3.3V to 10V output versions, and 7V to 20V is the specified operating input range for the 5V output.

Key specifications

Parameter Value
Manufacturer EG Micro
Package SOT-89-3
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) Vo 4.82 5 5.18 V Tj=25°C 7
Output voltage (line and load range) Vo 4.8 5.2 V 7V≤Vi≤20V; Io=1mA~40mA 7
Output voltage (full range) Vo 4.75 5.25 V 7V≤Vi≤Vmax; Io=1mA~70mA 7
Ripple rejection RR 41 50 dB 10V≤Vi≤20V; f=120Hz; Tj=25°C 7
Quiescent current Iq 2 5.5 mA 7
Load regulation ΔVo 11 60 mV Tj=25°C; Io=1mA~100mA 7
Load regulation ΔVo 5 30 mV Tj=25°C; Io=1mA~40mA 7
Line regulation ΔVo 8 150 mV Tj=25°C; 7V≤Vi≤20V 7
Line regulation ΔVo 6 100 mV Tj=25°C; 8V≤Vi≤20V 7
Quiescent current change (line) ΔIq 1.5 mA 8V≤Vi≤20V 7
Quiescent current change (load) ΔIq 0.1 mA 1mA≤Io≤40mA 7
Input voltage (absolute maximum) Vi 30 V 输出电压 3.3V~10V 6
Maximum power dissipation Pd 600 mW SOT-89 6
ESD protection voltage VESD 2.7 KV 6
Operating ambient temperature Topr -25 125 ℃ 6
Storage temperature Tstg -55 150 ℃ 6
Dropout voltage Vd 1.7 V Tj=25°C 7
Output voltage temperature drift ∆Vo/∆T 0.65 mV/°C Io=5mA 7
Output noise voltage VN 40 μV 10Hz≤f≤100kHz 7

CAD (KiCad official)

  • Symbol: EG78L05
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: eg78l05-etched.step / eg78l05-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); eg78l05.step / eg78l05.glb are the bare package body.

Provenance

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

  • Datasheet: EG Micro datasheet (9 pp, sha256 a530a0b16f5bb58e, retrieved 2026-10-19, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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