| Part Number | LT3954IUHE#TRPBF | LT3964IUHE#TRPBF | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | 
| Category | PMIC - LED Drivers | PMIC - LED Drivers | 
|   |   | |
| Product Status | Active | Obsolete | 
| Type | DC DC Regulator | DC DC Controller | 
| Topology | Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) | Step-Down (Buck) | 
| Internal Switch(s) | Yes | Yes | 
| Number of Outputs | 1 | 2 | 
| Voltage - Supply (Min) | 4.5V | 4V | 
| Voltage - Supply (Max) | 40V | 36V | 
| Voltage - Output | - | - | 
| Current - Output / Channel | 5A (Switch) | - | 
| Frequency | 100kHz ~ 1MHz | 2MHz | 
| Dimming | Analog, PWM | I²C, PWM | 
| Applications | - | Automotive, General Purpose, Industrial, Medical | 
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 36-WFQFN, 28 Leads, Exposed Pad | 36-WFQFN Exposed Pad | 
| Supplier Device Package | 36-QFN (5x6) | 36-QFN (5x6) |