| Part Number | UCC3581N | UCC3585N |
|---|---|---|
| Manufacturer | Unitrode | Texas Instruments |
| Category | PMIC - Voltage Regulators - DC DC Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers |
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| Product Status | Active | Obsolete |
| Output Type | Transistor Driver | Transistor Driver |
| Function | Step-Up, Step-Down, Step-Up/Step-Down | Step-Down |
| Output Configuration | Positive, Isolation Capable | Positive |
| Topology | Buck, Boost, Flyback, Forward Converter | Buck |
| Number of Outputs | 1 | 1 |
| Output Phases | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 6.8V ~ 15V | 3V ~ 5.5V |
| Frequency - Switching | Up to 100kHz | 500kHz |
| Duty Cycle (Max) | 84% | 100% |
| Synchronous Rectifier | No | Yes |
| Clock Sync | Yes | No |
| Serial Interfaces | - | - |
| Control Features | Current Limit, Enable, Frequency Control, Soft Start | Current Limit, Enable, Frequency Control, Soft Start |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Through Hole |
| Package / Case | 14-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 14-PDIP | 16-PDIP |