LNK306GN — Power Integrations LinkSwitch‑TN Offline Switcher IC

The LNK306GN is a highly integrated offline AC‑to‑DC switching regulator IC from the LinkSwitch‑TN family by Power Integrations — designed to simplify low‑power power supply designs by combining a high‑voltage MOSFET, control circuitry, and protection features into one compact chip. 

🧠 Key Characteristics

• Type: Integrated offline AC‑DC switcher / PMIC (Power Management IC) 

• Series: LinkSwitch‑TN 

• Package: SMD‑8B (8‑lead surface‑mount, gull wing) 

• Topology Support: Buck, Buck‑Boost, and Flyback configurations 

• Input Voltage: Designed for universal mains (~85–265 VAC) 

• Switching Frequency: ~66 kHz 

• Breakdown Voltage: ~700 V internal switch 

• Operating Temp: –40°C to +150°C (junction) 

• Duty Cycle: ~69% max 

• Non‑Isolated Output: Designed for non‑isolated buck/buck‑boost supplies