component
COS29502WU
Public Made by Adomby adom
COSINE Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 11d ago |
| viewers | 11d ago |
| cos29502wu-etched.glb | 11d ago |
| cos29502wu-etched.step | 11d ago |
| cos29502wu-hero.glb | 11d ago |
| cos29502wu-hero.overlay.json | 11d ago |
| cos29502wu.glb | 11d ago |
| cos29502wu.kicad_mod | 11d ago |
| cos29502wu.kicad_sym | 11d ago |
| cos29502wu.lbr | 11d ago |
| cos29502wu.step | 11d ago |
| package.json | 11d ago |
| page.json | 11d ago |
| README.md | 11d ago |
COS29502WU
COSINE · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5
COS29502WU from COSINE, in a TO-263-5. 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 | EN | input | CMOS/TTL-compatible enable input for the COS29xx2, where logic-high (≥2.4V) enables and logic-low (≤0.8V) shuts down the output, and it may be tied to VIN if ON/OFF control is not needed. |
| 2 | IN | power_in | Input supply that feeds the output power device, with a recommended range of 4.5 to 26V and an absolute maximum of 40V. |
| 3 | GND | power_in | Ground pin, which is internally connected to the thermal tab. |
| 4 | OUT | power_out | Regulated output voltage, adjustable from 1.25V to 25V, which needs an output capacitor of at least 10µF at full load for stability. |
| 5 | ADJ | input | Adjustable feedback input to the resistor divider from OUT to GND with a 1.24V typical reference, where the resistor from OUT to ADJ should not exceed 10kΩ. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | COSINE |
| Package | TO-263-5 |
| Category | Power Management (PMIC) |
| Pins | 6 |
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 | VOUT | -1 | 1 | % | IOUT=10mA | 4 | |
| Output Voltage | VOUT | -2 | 2 | % | 10mA ≤ IOUT ≤ IFL, (VOUT + 1V) ≤ VIN ≤ 26V | 4 | |
| Line Regulation | 0.3 | 0.6 | % | IOUT=10mA, (VOUT + 1V) ≤ VIN ≤ 26V | 4 | ||
| Load Regulation | 0.2 | 3 | % | 10mA≦IOUT≦1.5A | 4 | ||
| Output Voltage Temperature Coefficient | ΔVo/ΔT | 20 | 100 | ppm/°C | 4 | ||
| Dropout Voltage | 125 | 250 | mV | ΔVOUT = -1%, COS2950x, IOUT=250mA | 4 | ||
| Dropout Voltage | 370 | 600 | mV | ΔVOUT = -1%, COS2950x, IOUT=5A | 4 | ||
| Dropout Voltage | 250 | mV | ΔVOUT = -1%, COS2950x, IOUT=2.5A | 4 | |||
| Ground Current | IGND | 5.2 | mA | COS2950x, IOUT=2.5A, VIN = VOUT +1V | 4 | ||
| Ground Current | IGND | 28 | mA | COS2950x, IOUT=5A, VIN = VOUT +1V | 4 | ||
| Ground Pin Current at Dropout | IGRNDDO | 1.9 | mA | COS2950x, IOUT=10mA, VIN 0.5V less than specified VOUT | 5 | ||
| Current Limit | ILIM | 6.3 | 7.8 | A | COS2950x, VOUT=0V | 5 | |
| Ground Current in Shutdown | 5 | 75 | nA | 5 | |||
| Output Noise Voltage | en | 390 | µVrms | CL=10µF, IL=100mA, 10Hz to 100kHz | 5 | ||
| Output Noise Voltage | en | 211 | µVrms | CL=33µF, IL=100mA, 10Hz to 100kHz | 5 | ||
| Reference Voltage | 1.22 | 1.24 | 1.252 | V | 5 | ||
| Reference Voltage Temperature Coefficient | 20 | ppm/°C | 5 | ||||
| Adjust Pin Bias Current | 100 | pA | 5 | ||||
| Flag Output Low Voltage | VOL | 400 | mV | 5 | |||
| Flag Hysteresis | 15 | mV | 5 | ||||
| Input Logic Voltage Low (OFF) | 0.8 | V | 5 | ||||
| Input Logic Voltage High (ON) | 2.4 | V | 5 | ||||
| Enable Pin Input Current | 24 | pA | VEN=0.8V | 5 | |||
| Enable Pin Input Current | 3 | nA | VEN=26V | 5 | |||
| Regulator Output Current in Shutdown | 18 | µA | -40°C≤TJ≤ +125°C | 5 | |||
| Maximum Input Voltage | VIN | -0.3 | 40 | V | 3 | ||
| Enable Input Voltage | -0.3 | V | -0.3 to VIN | 3 | |||
| Storage Temperature Range | -55 | 150 | °C | 3 | |||
| Operating Junction Temperature Range | -40 | 125 | °C | 3 | |||
| ESD Susceptibility, HBM | 2000 | V | 3 | ||||
| Package Thermal Resistance, Junction-to-case | RθJC | 2 | °C/W | TO-263 | 3 | ||
| Input Supply Voltage | 4.5 | 26 | V | 3 | |||
| Operating ambient temperature | -40 | 85 | °C | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | Internally connected directly to the device pin3 (GND). The thermal tab must be connected to a copper area on the PCB at the same | 2 |
CAD (KiCad official)
- Symbol:
COS29502WU - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
cos29502wu-etched.step/cos29502wu-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cos29502wu.step/cos29502wu.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: COSINE datasheet (10 pp, sha256
e0043457320aadcb, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).