Description
3S111 PWM Power IC SMD (SOP-8) – High Efficiency Switching Controller for Power Supply & LED TV
The 3S111 PWM Power IC is a highly efficient switching controller designed for use in SMPS (Switch Mode Power Supply) circuits. This IC plays a crucial role in regulating voltage and controlling switching operations in power circuits, ensuring stable and efficient performance.
It is commonly found in LED TVs, power adapters, battery chargers, and other electronic devices. Due to its compact SOP-8 SMD design, it is widely used in modern electronic boards where space and efficiency are critical.
This IC is especially useful for electronics technicians and repair professionals, helping to fix common power-related issues like no power, dead condition, or unstable voltage output.
⭐ Key Features & Highlights
- ⚡ High-Efficiency PWM Controller IC – Optimized for switching power supply circuits
- 🔌 Wide Application Support – Suitable for LED TVs, SMPS, chargers & adapters
- 🔥 Low Power Consumption Design – Improves overall circuit efficiency
- 🛡️ Built-in Protection Features – Includes overload & short circuit protection
- 📦 Compact SMD Package (SOP-8) – Easy to install in modern PCB designs
- ⚙️ Stable Performance – Reliable operation in high-frequency switching
- 🔧 Perfect for Repairing Work – Ideal for technicians and electronics repair shops
📊 Specifications Table
| Parameter | Details |
|---|---|
| IC Name | 3S111 |
| Marking Code | 3S111 / SK631 / 069L |
| Type | PWM Power Controller IC |
| Package | SOP-8 (SMD) |
| Function | Switching Power Regulation |
| Application | SMPS, LED TV, Charger Circuits |
| Mounting Type | Surface Mount Device (SMD) |
| Efficiency | High |
| Protection Features | Overload, Short Circuit (Typical) |
🔧 Applications
- 📺 LED TV Power Supply Boards
- 🔌 Mobile & Laptop Chargers
- ⚡ SMPS Power Circuits
- 🔋 Adapter & Battery Charging Circuits
- 🛠️ Electronic Repair & Maintenance Work
- 💡 LED Driver Circuits
🎯 Why Choose This IC?
- ✔️ Reliable replacement for damaged PWM IC
- ✔️ Cost-effective solution for repairing power boards
- ✔️ Widely used in real-world electronic circuits
- ✔️ Stable and long-lasting performance








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