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| Part Number | LT3431EFE#TRPBF | LT3439EFE#TRPBF | LT3433EFE#TRPBF | LT3437EFE#TRPBF | LT3434EFE#TRPBF | LT3436EFE#TRPBF | LT3435EFE#TRPBF | LT3431IFE#TRPBF | LT3430EFE#TRPBF |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| Function | Step-Down | Step-Up/Step-Down | Step-Up/Step-Down | Step-Down | Step-Down | Step-Up, Step-Up/Step-Down | Step-Down | Step-Down | Step-Down |
| Output Configuration | Positive | Positive, Isolation Capable | Positive | Positive | Positive | Positive | Positive | Positive | Positive |
| Topology | Buck | Push-Pull | Buck-Boost | Buck | Buck | Boost, SEPIC | Buck | Buck | Buck, SEPIC |
| Output Type | Adjustable | Fixed | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 5.5V | 2.8V | 4V | 3V | 3V | 3V | 3V | 5.5V | 5.5V |
| Voltage - Input (Max) | 60V | 17.5V | 60V | 60V | 60V | 25V | 60V | 60V | 60V |
| Voltage - Output (Min/Fixed) | 1.219V | - | 3.3V | 1.25V | 1.25V | 1.2V | 1.25V | 1.219V | 1.219V |
| Voltage - Output (Max) | 55.2V | - | 20V | 57V | 55.2V | 35V (Switch) | 55.2V | 55.2V | 57.6V |
| Current - Output | 3A (Switch) | 1A | 500mA (Switch) | 500mA (Switch) | 3A (Switch) | 3A (Switch) | 3A (Switch) | 3A (Switch) | 3A |
| Frequency - Switching | 500kHz | 20kHz ~ 250kHz | 200kHz | 200kHz | 200kHz | 800kHz | 500kHz | 500kHz | 200kHz |
| Synchronous Rectifier | No | No | No | No | No | No | No | No | No |
| Operating Temperature | 0°C ~ 125°C (TJ) | 0°C ~ 70°C (TJ) | 0°C ~ 125°C (TJ) | 0°C ~ 125°C (TJ) | 0°C ~ 125°C (TJ) | 0°C ~ 125°C (TJ) | 0°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | 0°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Supplier Device Package | 16-TSSOP-EP | 16-TSSOP-EP | 16-TSSOP-EP | 16-TSSOP-EP | 16-TSSOP-EP | 16-TSSOP-EP | 16-TSSOP-EP | 16-TSSOP-EP | 16-TSSOP-EP |
