| Part Number | LM1770SMF | LM1770UMF |
|---|---|---|
| Manufacturer | National Semiconductor | National Semiconductor |
| 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 | - |
| Function | Step-Down | - |
| Output Configuration | Positive | - |
| Topology | Buck | - |
| Number of Outputs | 1 | - |
| Output Phases | 1 | - |
| Voltage - Supply (Vcc/Vdd) | 2.8V ~ 5.5V | - |
| Frequency - Switching | 100kHz ~ 1MHz | - |
| Duty Cycle (Max) | - | - |
| Synchronous Rectifier | Yes | - |
| Clock Sync | No | - |
| Serial Interfaces | - | - |
| Control Features | - | - |
| Operating Temperature | -40°C ~ 125°C (TJ) | - |
| Mounting Type | Surface Mount | - |
| Package / Case | SC-74A, SOT-753 | - |
| Supplier Device Package | SOT-23-5 | - |