DK125 — AC-DC Power Control IC by Dongke Semiconductor
24W | 90V–265V Input | DIP-8 | In Stock | Authorized Distribution across India
What Is the DK125?
The DK125 is a high-efficiency AC-DC Flyback Power Supply Control IC from Dongke Semiconductor (DK) — engineered to be the intelligent core inside medium-power chargers, adapters, and switching power supplies. It converts high-voltage AC input (90V–265V) into stable, regulated low-voltage DC output, safely and efficiently powering devices up to 24W.
With a built-in 700V power transistor and self-powered technology, the DK125 eliminates the need for external auxiliary winding on the transformer — significantly simplifying design, reducing component count, and lowering manufacturing costs.
Key Features
- ⚡ 24W maximum output power — handles medium to high power applications with ease
- 🔌 Built-in 700V power transistor — no additional external high-voltage components needed
- 🔧 Self-powered technology — no external auxiliary winding required, simplifying transformer design
- 🌱 Standby power < 0.3W — meets European ErP energy efficiency standards
- 🛡️ Comprehensive protection — over-temperature (130°C), overvoltage, short circuit, overload & secondary open circuit protection
- 📡 Frequency jitter technology — reduces EMI interference, lowering filtering costs
- 🚀 Soft start — prevents voltage spikes and transformer saturation at startup
- 📦 Package: DIP-8 | ESD Rating: 4KV
Specifications at a Glance
ParameterValueInput Voltage90V – 265V ACMax Output Power24WSwitching Frequency65KHz PWMBuilt-in Transistor700VStandby Power< 0.3WOTP Threshold130°CPeak Current Protection1.3APackageDIP-8ESD Rating4KV
Applications
- 💻 Laptop Chargers & Power Adapters (up to 24W)
- 💡 LED Power Supplies & LED Drivers
- 📺 Set-Top Boxes & DVD Players
- 🏠 Home Appliances — Induction Cookers, Air Conditioners
- 🔋 Battery Chargers
- ⚙️ Industrial SMPS & Switching Power Supplies
Why Source from Regency Semiconductors?
As authorized distributors for Dongke Semiconductor in India, we supply genuine DK125 ICs with consistent quality, competitive pricing, and reliable stock — backed by pan-India sales coverage across Mumbai, Delhi, and South India.
📩 Contact us for pricing, samples & bulk orders
🌐 www.regencysemiconductors.com | sales1@regencysemiconductors.com | +918591695392
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