Power Integrations LNK306DG-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.06 | $1.06 |
| 15+ | $1.03 | $15.45 |
| 25+ | $1.01 | $25.25 |
| 50+ | $0.95 | $47.50 |
| 100+ | $0.84 | $84.00 |
| N+ | $0.17 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | LinkSwitch®-TN |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Isolation | Non-Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Buck, Buck-Boost, Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 69% |
| Frequency - Switching | 66kHz |
| Power (Watts) | - |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Short Circuit |
| Control Features | - |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width), 7 Leads |
| Supplier Device Package | SO-8C |
| ROHS |
The LNK306DG-TL from Power Integrations is a LinkSwitch-TN offline switcher that integrates a 700V power MOSFET for non-isolated Buck, Buck-Boost, and Flyback designs. Operating at 66kHz with up to 69% duty cycle, it includes current limiting, open loop, over temperature, and short circuit protection. Housed in an 8-SOIC 7-lead package, it handles junction temperatures from -40°C to 150°C.
- Integrated 700V MOSFET reduces external component count and board space.
- Multi-topology flexibility (Buck, Buck-Boost, Flyback) supports diverse non-isolated designs.
- Comprehensive protection suite (current limiting, open loop, over temperature, short circuit) improves reliability.
- Wide -40°C to 150°C junction temperature range suits demanding thermal environments.
- 66kHz switching frequency with 69% max duty cycle enables compact magnetics.
Non-Isolated AC-DC Bias Supplies
The LNK306DG-TL's Buck topology and 700V breakdown rating make it well suited for direct-coupled bias supplies from offline AC mains, eliminating the need for a transformer.
Low-Power Buck-Boost Rails
With Buck-Boost capability, this LinkSwitch-TN device delivers a regulated rail even when the output voltage crosses the input range, ideal for compact appliance control boards.
Compact Flyback Auxiliary Power
When a Flyback arrangement is used, the integrated switch and 66kHz operation support small auxiliary supplies in non-isolated system architectures.
Harsh-Environment Control Electronics
A -40°C to 150°C junction temperature range allows deployment in industrial and outdoor control electronics requiring wide thermal tolerance.
Space-Constrained 8-SOIC Designs
The 8-SOIC 7-lead package with integrated MOSFET reduces external component count for space-limited offline switcher designs.
- Q: What switching topologies does the LNK306DG-TL support?
- A: It supports Buck, Buck-Boost, and Flyback topologies in a non-isolated configuration.
- Q: What is the breakdown voltage rating?
- A: The device has a 700V breakdown voltage (Vds rating).
- Q: Does it include an integrated switch?
- A: Yes, the power MOSFET is integrated on-chip.
- Q: What is the maximum duty cycle and switching frequency?
- A: 69% maximum duty cycle at 66kHz switching frequency.
- Q: What protections are built in?
- A: Current limiting, open loop, over temperature, and short circuit protection.
- Q: What switching topologies does the LNK306DG-TL support?
- A: It supports Buck, Buck-Boost, and Flyback topologies in a non-isolated configuration.
- Q: What is the breakdown voltage rating?
- A: The device has a 700V breakdown voltage (Vds rating).
- Q: Does it include an integrated switch?
- A: Yes, the power MOSFET is integrated on-chip.
- Q: What is the maximum duty cycle and switching frequency?
- A: 69% maximum duty cycle at 66kHz switching frequency.
- Q: What protections are built in?
- A: Current limiting, open loop, over temperature, and short circuit protection.

LNK306DG-TL.pdf