component
CJ79L15
Public Made by Adomby adom
Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 16d ago |
| viewers | 16d ago |
| cj79l15-etched.glb | 16d ago |
| cj79l15-etched.step | 16d ago |
| cj79l15-hero.glb | 16d ago |
| cj79l15-hero.overlay.json | 16d ago |
| cj79l15.glb | 16d ago |
| cj79l15.kicad_mod | 16d ago |
| cj79l15.kicad_sym | 16d ago |
| cj79l15.lbr | 16d ago |
| cj79l15.step | 16d ago |
| package.json | 16d ago |
| page.json | 16d ago |
| README.md | 16d ago |
CJ79L15
Changjing · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
CJ79L15 from Changjing, 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 | GND | power_in | Common ground reference pin for the negative regulator; the datasheet gives no separate limit for this pin. |
| 2 | IN | power_in | Negative unregulated input, with an absolute maximum input voltage Vi of -35 V and an input capacitor Ci of 0.33 µF recommended in the typical application. |
| 3 | OUT | power_out | Regulated negative output of -15 V (typ.) with a maximum output current of 100 mA; a 0.1 µF output capacitor Co is recommended close to the regulator for stability and transient response. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 | Vo | -14.4 | -15 | -15.6 | V | 25℃ | 1 |
| Output voltage | Vo | -14.25 | -15 | -15.75 | V | -17.5V≤Vi≤-30V, Io=1mA~40mA | 1 |
| Load Regulation | ΔVo | 25 | 150 | mV | Io=1mA~100mA, Vi=-23V, 25℃ | 1 | |
| Load Regulation | ΔVo | 15 | 75 | mV | Io=1mA~40mA, Vi=-23V, 25℃ | 1 | |
| Line regulation | ΔVo | 65 | 300 | mV | -17.5V≤Vi≤-30V, Io=40mA, 25℃ | 1 | |
| Line regulation | ΔVo | 50 | 250 | mV | -20V≤Vi≤-30V, Io=40mA, 25℃ | 1 | |
| Ripple Rejection | RR | 34 | 39 | dB | -18.5V≤Vi≤-28.5V, f=120Hz, 0-125℃ | 1 | |
| Input Voltage | Vi | -35 | V | 1 | |||
| Continuous total dissipation | PD | 0.5 | W | 1 | |||
| Operating Junction Temperature Range | TOPR | 0 | 125 | ℃ | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
CJ79L15 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
cj79l15-etched.step/cj79l15-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cj79l15.step/cj79l15.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (3 pp, sha256
a0d741f6e9836e8e, retrieved 2026-10-17, 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).