| Part Number | FSQ311L | FSQ211L | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | 
| Category | PMIC - AC DC Converters, Offline Switchers | PMIC - AC DC Converters, Offline Switchers | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Output Isolation | Isolated | Isolated | 
| Internal Switch(s) | Yes | Yes | 
| Voltage - Breakdown | 650V | 650V | 
| Topology | Flyback | Flyback | 
| Voltage - Start Up | 12 V | 9 V | 
| Voltage - Supply (Vcc/Vdd) | 8V ~ 20V | 7V ~ 20V | 
| Duty Cycle | - | 67% | 
| Frequency - Switching | - | 67kHz | 
| Power (Watts) | 12 W | - | 
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage | Current Limiting, Over Load, Over Temperature | 
| Control Features | Sync | - | 
| Operating Temperature | -40°C ~ 85°C (TA) | -25°C ~ 85°C (TA) | 
| Package / Case | 8-SMD, Gull Wing | 8-SMD, Gull Wing | 
| Supplier Device Package | 8-LSOP | 8-LSOP | 
| Mounting Type | Surface Mount | Surface Mount |