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| Part Number | LT3956IUHE#TRPBF | LT3954IUHE#TRPBF | LT3955IUHE#TRPBF | LT3956EUHE#TRPBF | 
|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | 
| Product Status | Active | Active | Active | Active | 
| Type | DC DC Regulator | DC DC Regulator | DC DC Regulator | DC DC Regulator | 
| Topology | Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) | Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) | Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) | Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) | 
| Internal Switch(s) | Yes | Yes | Yes | Yes | 
| Number of Outputs | 1 | 1 | 1 | 1 | 
| Voltage - Supply (Min) | 4.5V | 4.5V | 4.5V | 4.5V | 
| Voltage - Supply (Max) | 80V | 40V | 60V | 80V | 
| Voltage - Output | 80V | - | - | 80V | 
| Current - Output / Channel | 3.3A (Switch) | 5A (Switch) | 3.5A (Switch) | 3.3A (Switch) | 
| Frequency | 100kHz ~ 1MHz | 100kHz ~ 1MHz | 100kHz ~ 1MHz | 100kHz ~ 1MHz | 
| Dimming | Analog, PWM | Analog, PWM | Analog, PWM | Analog, PWM | 
| Applications | - | - | - | - | 
| Operating Temperature | -40°C ~ 125°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 | 
| Package / Case | 36-WFQFN, 28 Leads, Exposed Pad | 36-WFQFN, 28 Leads, Exposed Pad | 36-WFQFN, 28 Leads, Exposed Pad | 36-WFQFN, 28 Leads, Exposed Pad | 
| Supplier Device Package | 36-QFN (5x6) | 36-QFN (5x6) | 36-QFN (5x6) | 36-QFN (5x6) |