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| Part Number | LM2598SX-3.3 | LM2599SX-3.3 | LM2596SX-3.3 | LM2598S-3.3 |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | National Semiconductor | Texas Instruments |
| Product Status | Obsolete | Obsolete | Active | Obsolete |
| Function | Step-Down | Step-Down | - | Step-Down |
| Output Configuration | Positive | Positive | - | Positive |
| Topology | Buck | Buck | - | Buck |
| Output Type | Fixed | Fixed | - | Fixed |
| Number of Outputs | 1 | 1 | - | 1 |
| Voltage - Input (Min) | 4.5V | 4.5V | - | 4.5V |
| Voltage - Input (Max) | 40V | 40V | - | 40V |
| Voltage - Output (Min/Fixed) | 3.3V | 3.3V | - | 3.3V |
| Voltage - Output (Max) | - | - | - | - |
| Current - Output | 1A | 3A | - | 1A |
| Frequency - Switching | 150kHz | 150kHz | - | 150kHz |
| Synchronous Rectifier | No | No | - | No |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | - | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | - | Surface Mount |
| Package / Case | TO-263-8, D²Pak (7 Leads + Tab), TO-263CA | TO-263-8, D²Pak (7 Leads + Tab), TO-263CA | - | TO-263-8, D²Pak (7 Leads + Tab), TO-263CA |
| Supplier Device Package | DDPAK/TO-263-7 | DDPAK/TO-263-7 | - | DDPAK/TO-263-7 |
