component
CJ7805F
Public Made by Adomby adom
Changjing Linear Voltage Regulators (LDO), TO-220F-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCJ7805F
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, primaryclaude-haiku-5-5(text), consensusclaude-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).