| Part Number | LM3370SD-4221/NOPB | LM3370SDX-4221/NOPB | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | 
|   |   | |
| Product Status | Active | Active | 
| Function | Step-Down | Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck | Buck | 
| Output Type | Fixed | Fixed | 
| Number of Outputs | 2 | 2 | 
| Voltage - Input (Min) | 2.7V | 2.7V | 
| Voltage - Input (Max) | 5.5V | 5.5V | 
| Voltage - Output (Min/Fixed) | 1.8V, 3.3V | 1.8V, 3.3V | 
| Voltage - Output (Max) | - | - | 
| Current - Output | 600mA | 600mA | 
| Frequency - Switching | 2MHz | 2MHz | 
| Synchronous Rectifier | Yes | Yes | 
| Operating Temperature | -30°C ~ 85°C (TA) | -30°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 16-WFDFN Exposed Pad | 16-WFDFN Exposed Pad | 
| Supplier Device Package | 16-WSON (5x4) | 16-WSON (5x4) |