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| Part Number | LM3503SQ-44 | LM3503SQX-44 | LM3502SQ-44 |
|---|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | Texas Instruments |
| Product Status | Active | Obsolete | Obsolete |
| Type | DC DC Regulator | DC DC Regulator | DC DC Regulator |
| Topology | Step-Up (Boost) | Step-Up (Boost) | Step-Up (Boost) |
| Internal Switch(s) | Yes | Yes | Yes |
| Number of Outputs | 2 | 2 | 2 |
| Voltage - Supply (Min) | 2.5V | 2.5V | 2.5V |
| Voltage - Supply (Max) | 5.5V | 5.5V | 5.5V |
| Voltage - Output | 44V | 44V | 44V |
| Current - Output / Channel | 750mA (Switch) | 750mA (Switch) | 750mA (Switch) |
| Frequency | 1MHz | 1MHz | 1MHz |
| Dimming | Analog, PWM | Analog, PWM | PWM |
| Applications | Backlight | Backlight | Backlight |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 16-WFQFN Exposed Pad | 16-WFQFN Exposed Pad | 16-WFQFN Exposed Pad |
| Supplier Device Package | 16-WQFN (4x4) | 16-WQFN (4x4) | 16-WQFN (4x4) |
