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| Part Number | LM3557SD-2 | LM3557SDX-2 |
|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments |
| Product Status | Active | Obsolete |
| Type | DC DC Regulator | DC DC Regulator |
| Topology | Step-Up (Boost) | Step-Up (Boost) |
| Internal Switch(s) | Yes | Yes |
| Number of Outputs | 1 | 1 |
| Voltage - Supply (Min) | 2.7V | 2.7V |
| Voltage - Supply (Max) | 7.5V | 7.5V |
| Voltage - Output | - | - |
| Current - Output / Channel | 800mA (Switch) | 800mA (Switch) |
| Frequency | 1.2MHz | 1.2MHz |
| Dimming | - | - |
| Applications | Backlight | Backlight |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-WFDFN Exposed Pad | 8-WFDFN Exposed Pad |
| Supplier Device Package | 8-WSON (3x3) | 8-WSON (3x3) |
