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| Part Number | LTC3126EFE | LTC3126HFE | LTC3126IFE | LTC3128EFE | LTC3124EFE |
|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Function | Step-Down | Step-Down | Step-Down | Step-Up/Step-Down | Step-Up |
| Output Configuration | Positive | Positive | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck | Buck-Boost | Boost |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 2.4V | 2.4V | 2.4V | 1.73V | 1.8V |
| Voltage - Input (Max) | 42V | 42V | 42V | 5.5V | 5.5V |
| Voltage - Output (Min/Fixed) | 0.818V | 0.818V | 0.818V | 1.8V | 2.5V |
| Voltage - Output (Max) | 42V | 42V | 42V | 5.5V | 15V |
| Current - Output | 2.5A | 2.5A | 2.5A | 3A | 2.5A (Switch) |
| Frequency - Switching | 200kHz ~ 2.2MHz | 200kHz ~ 2.2MHz | 200kHz ~ 2.2MHz | 1.2MHz | 1MHz |
| Synchronous Rectifier | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 150°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 28-TSSOP (0.173", 4.40mm Width) Exposed Pad | 28-TSSOP (0.173", 4.40mm Width) Exposed Pad | 28-TSSOP (0.173", 4.40mm Width) Exposed Pad | 20-WFQFN Exposed Pad | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Supplier Device Package | 28-TSSOP-EP | 28-TSSOP-EP | 28-TSSOP-EP | 20-QFN (3x3) | 16-TSSOP-EP |
