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| Part Number | LM3434SQ/NOPB | LM3435SQ/NOPB | LM3434SQX/NOPB | LM3432SQ/NOPB | LM3433SQ/NOPB |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Obsolete | Obsolete | Obsolete |
| Type | DC DC Controller | DC DC Regulator | DC DC Controller | DC DC Regulator | DC DC Controller |
| Topology | Step-Down (Buck) | Flyback | Step-Down (Buck) | Step-Up (Boost) | Step-Down (Buck) |
| Internal Switch(s) | No | Yes | No | Yes | No |
| Number of Outputs | 1 | 3 | 1 | 6 | 1 |
| Voltage - Supply (Min) | 3V | 2.7V | 3V | 6V | 3V |
| Voltage - Supply (Max) | 5.8V | 5.5V | 5.8V | 40V | 5.8V |
| Voltage - Output | - | - | - | 80V | - |
| Current - Output / Channel | - | 2A (Switch) | - | 40mA | - |
| Frequency | 1MHz | 1MHz | 1MHz | - | 1MHz |
| Dimming | PWM | I²C | PWM | Analog, PWM | PWM |
| Applications | - | - | - | Backlight | Backlight |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 24-WFQFN Exposed Pad | 40-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad |
| Supplier Device Package | 24-WQFN (4x4) | 40-WQFN (5x5) | 24-WQFN (4x4) | 24-WQFN (4x5) | 24-WQFN (4x4) |
