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CJ7805F

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

componentpower supply chipcj7805ffactory-2.0.0extractor-text

Verified CJ7805F

by Ray · last 12 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

12 Nov 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: CJ7805F · TO-220F-3 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 4-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: TO-220F-3_Vertical
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-orvyhzv0/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • ✓package_fit: thickness within the datasheet's package drawing (vertical TO package); standing height not judged: the drawing read gives no overall height (H, H1 or L) (datasheet p.3)
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 16 kB, viewers/symbol.html 7 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ cj7805f.kicad_sym✓ cj7805f.kicad_mod✓ cj7805f.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray
viewers cj7805f: viewers rendered from the public page · Ray
cj7805f-hero.glb Publish 0.1.0 · Ray
cj7805f-hero.overlay.json Publish 0.1.0 · Ray
cj7805f.glb Publish 0.1.0 · Ray
cj7805f.kicad_mod Publish 0.1.0 · Ray
cj7805f.kicad_sym Publish 0.1.0 · Ray
cj7805f.lbr Publish 0.1.0 · Ray
cj7805f.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json Set visibility: public · Ray
README.md Publish 0.1.0 · Ray
verification.json Verified: Published by the parts factory: tier lcsc, 3 pins · Ray

CJ7805F

Changjing · Linear Voltage Regulators (LDO) · TO-220F-3

CJ7805F from Changjing, in a TO-220F-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 IN power_in Unregulated input pin; the electrical characteristics are specified for input voltages of 7V to 25V, with 7V to 20V for the stated output voltage tolerance.
2 GND power_in Common ground pin of the regulator, which the datasheet pinout lists as pin 2 with no further electrical limits stated.
3 OUT power_out Regulated 5V output pin, specified at 4.75V to 5.25V for Io = 5mA to 1A, with a maximum output current IOM of 1.5A.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-220F-3
Category Power Supply Chip
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 4.85 5 5.15 V 1
Output voltage Vo 4.75 5 5.25 V 7V≤Vi≤20V, Io=5mA-1A 1
Load regulation ΔVo 9 100 mV Io=5mA-1.5A, TJ=25℃ 1
Load regulation ΔVo 4 50 mV Io=250mA-750mA, TJ=25℃ 1
Line regulation ΔVo 4 100 mV 7V≤Vi≤25V, TJ=25℃ 1
Line regulation ΔVo 1.6 50 mV 8V≤Vi≤12V, TJ=25℃ 1
Quiescent current Iq 5 8 mA 1
Quiescent current change ΔIq 0.3 1.3 mA 7V≤Vi≤25V 1
Quiescent current change ΔIq 0.03 0.5 mA 5mA≤Io≤1A 1
Ripple rejection RR 62 73 dB 8V≤Vi≤18V, f=120Hz 1
Output noise voltage VN 42 μV/Vo 10Hz≤f≤100KHz, TJ=25℃ 1
Output voltage drift △Vo/△T -1.1 mV/℃ IO=5mA 1
Dropout voltage Vd 2 Io=1A, TJ=25℃ 1
Output resistance RO 10 mΩ f=1KHz 1
Short circuit current Isc 230 mA 1
Peak current Ipk 2.2 A 1
Maximum output current IOM 1.5 A 1
Continuous total dissipation PD 1.5 W Ta=25℃ 1
Input voltage Vi 35 V 1
Operating temperature range TOPR 125 ℃ 1
Storage temperature range TSTG -65 150 ℃ 1
Operating junction temperature TJ 150 ℃ 1
Thermal resistance junction to ambient RθJA 83.3 ℃/W 1

CAD (KiCad official)

  • Symbol: CJ7805F
  • Footprint: Package_TO_SOT_THT:TO-220F-3_Vertical
  • 3D model: TO-220F-3 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Changjing datasheet (4 pp, sha256 4e6e78b88478b0c0, retrieved 2026-11-12, 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