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| Part Number | LM3509SDE/NOPB | LM3509SDX/NOPB | LM3509SD/NOPB |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Active |
| 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) | 2.7V | 2.7V | 2.7V |
| Voltage - Supply (Max) | 5.5V | 5.5V | 5.5V |
| Voltage - Output | 21V | 21V | 21V |
| Current - Output / Channel | 30mA | 30mA | 30mA |
| Frequency | 1.27MHz | 1.27MHz | 1.27MHz |
| Dimming | I²C | I²C | I²C |
| 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 | 10-WFDFN Exposed Pad | 10-WFDFN Exposed Pad | 10-WFDFN Exposed Pad |
| Supplier Device Package | 10-SON (3x3) | 10-SON (3x3) | 10-SON (3x3) |
