component

LM7905T

Public Made by Adom

by adom

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

componentpower management (pmic)lm7905tfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

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.
Download PDF
Contents

README

markdown

LM7905T

HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220-3

LM7905T from HGSEMI, in a TO-220-3. 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 GND power_in Common ground reference terminal of the negative regulator; the datasheet gives no separate voltage or current limit for this pin.
2 Input power_in Unregulated negative supply input, with an absolute maximum input voltage of -35V at TJ=25°C.
3 Output power_out Regulated negative output of -5.0V nominal for LM7905 (-4.82V to -5.18V over the stated conditions), rated for output current in excess of 1.0A.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package TO-220-3
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 VO -5.18 -4.82 V -7.0V ≤ VIN ≤ -20V, 5.0mA ≤ IO ≤ 1.0 A 2
Line Regulation ∆UV 47.5 mV IO = 100mA, -7.0V ≤ VIN ≤ -25V 2
Line Regulation ∆UV 23.5 mV IO = 100mA, -8.0V ≤ VIN ≤ -12V 2
Line Regulation ∆UV 95 mV IO = 500mA, -7.0V ≤ VIN ≤ -25V 2
Load Regulation ∆UI 95 mV 5.0mA ≤ IO ≤ 1.5 A 2
Load Regulation ∆UI 47.5 mV 250mA ≤ IO ≤ 750mA 2
Quiescent Current IB 7.8 mA 2
Quiescent Current Change ∆IB 1.25 mA -7.0V ≤ VIN ≤ -25V 2
Quiescent Current Change ∆IB 0.48 mA 5.0mA ≤ IO ≤ 1.5 A 2
Maximum input voltage -35 V TJ=25°C 2
Maximum operating junction temperature 125 ℃ 2

CAD (KiCad official)

  • Symbol: LM7905T
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220-3 (KiCad packages3D, STEP)
  • 3D model files: lm7905t-etched.step / lm7905t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm7905t.step / lm7905t.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (7 pp, sha256 cd0f86e4d6f2597d, retrieved 2026-10-17, 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