component
CJ7905
Public Made by Adomby adom
Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2L. Datasheet-verified pinout, 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
markdownCJ7905
Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2L
CJ7905 from Changjing, in a TO-252-2L. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground / common reference pin. Also thermally and electrically bonded to the exposed tab of the TO-252-2L package. |
| 2 | IN | power_in | Unregulated negative input voltage. Recommended operating range -7 V to -25 V (absolute max -35 V). A 2.2 uF input capacitor (Ci) to GND is recommended for stability. |
| 3 | OUT | power_out | Regulated -5 V output (typ; -4.8 V to -5.2 V at 25 C). Delivers up to 1.5 A peak (typ peak current 2.1 A) with a 1 uF output capacitor (Co) to GND for stability. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-252-2L |
| Category | PMIC |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
CJ7905 - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252-2L (KiCad packages3D, STEP)
- 3D model files:
cj7905-etched.step/cj7905-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj7905.step/cj7905.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (3 pp, sha256
ee3cb70df3f20dbe, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).