| Part Number | UCC3585D | UCC3581D |
|---|---|---|
| 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 | Active |
| Output Type | Transistor Driver | Transistor Driver |
| Function | Step-Down | Step-Up, Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive | Positive, Isolation Capable |
| Topology | Buck | Buck, Boost, Flyback, Forward Converter |
| Number of Outputs | 1 | 1 |
| Output Phases | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 5.5V | 6.8V ~ 15V |
| Frequency - Switching | 500kHz | Up to 100kHz |
| Duty Cycle (Max) | 100% | 84% |
| Synchronous Rectifier | Yes | No |
| Clock Sync | No | Yes |
| Serial Interfaces | - | - |
| Control Features | Current Limit, Enable, Frequency Control, Soft Start | Current Limit, Enable, Frequency Control, Soft Start |
| Operating Temperature | 0°C ~ 85°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SOIC | 14-SOIC |