| Part Number | LT3474IFE#TRPBF | LT3477IFE#TRPBF | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | 
| Category | PMIC - LED Drivers | PMIC - LED Drivers | 
|   |   | |
| Product Status | Active | Active | 
| Type | DC DC Regulator | DC DC Regulator | 
| Topology | Step-Down (Buck) | Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) | 
| Internal Switch(s) | Yes | Yes | 
| Number of Outputs | 1 | 1 | 
| Voltage - Supply (Min) | 3.5V | 2.5V | 
| Voltage - Supply (Max) | 36V | 25V | 
| Voltage - Output | - | - | 
| Current - Output / Channel | 1A | 3A (Switch) | 
| Frequency | 200kHz ~ 2MHz | 200kHz ~ 3.5MHz | 
| Dimming | PWM | PWM | 
| Applications | Automotive, Backlight | - | 
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad | 
| Supplier Device Package | 16-TSSOP-EP | 20-TSSOP-EP |