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FSQ311L

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FSQ311L

IC OFFLINE SWITCH FLYBACK 8LSOP

Manufacturer: Fairchild Semiconductor

Categories: AC DC Converters, Offline Switches

Quality Control: Learn More

Fairchild Semiconductor FSQ311L is an 8-LSOP packaged offline flyback converter. This monolithic device integrates a PWM controller and a power MOSFET designed for highly efficient, quasi-resonant flyback and forward converter applications. It features internal MOSFET switching, offering a simplified component count and reduced board space. The FSQ311L provides robust fault protection including current limiting, overload, over-temperature, and over-voltage protection. Its operating temperature range is -40°C to 85°C. Typical applications include power adapters, LED lighting, and general-purpose power supplies requiring up to 12W of output power. The device operates from a supply voltage of 8V to 20V with a start-up voltage of 12V and a breakdown voltage of 650V. The topology is flyback with isolated output.

Additional Information

Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:
Technical Details:
PackagingTube
Package / Case8-SMD, Gull Wing
Mounting TypeSurface Mount
Operating Temperature-40°C ~ 85°C (TA)
Duty Cycle-
Frequency - Switching-
Internal Switch(s)Yes
Voltage - Breakdown650V
Output IsolationIsolated
TopologyFlyback
Voltage - Supply (Vcc/Vdd)8V ~ 20V
Supplier Device Package8-LSOP
Fault ProtectionCurrent Limiting, Over Load, Over Temperature, Over Voltage
Voltage - Start Up12 V
Control FeaturesSync
Power (Watts)12 W

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