| Part Number | LTC3859AHUHF#PBF | LTC3859ALHUHF#PBF | 
|---|---|---|
| Manufacturer | Linear Technology | Analog Devices Inc. | 
| Category | PMIC - Voltage Regulators - DC DC Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers | 
|   |   | |
| Product Status | Active | Active | 
| Output Type | - | Transistor Driver | 
| Function | - | Step-Down, Step-Up/Step-Down | 
| Output Configuration | - | Positive | 
| Topology | - | Buck, Buck-Boost, SEPIC | 
| Number of Outputs | - | 3 | 
| Output Phases | - | 2 | 
| Voltage - Supply (Vcc/Vdd) | - | 4.5V ~ 38V | 
| Frequency - Switching | - | 115kHz ~ 835kHz, 350kHz ~ 535kHz | 
| Duty Cycle (Max) | - | 99%, 100% | 
| Synchronous Rectifier | - | Yes | 
| Clock Sync | - | No | 
| Serial Interfaces | - | - | 
| Control Features | - | Enable, Frequency Control, Power Good, Soft Start, Tracking | 
| Operating Temperature | - | -40°C ~ 150°C (TJ) | 
| Mounting Type | - | Surface Mount | 
| Package / Case | - | 38-WFQFN Exposed Pad | 
| Supplier Device Package | - | 38-QFN (5x7) |