| Part Number | LTC3779IFE#PBF | LTC3769IFE#PBF | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | 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 | Transistor Driver | 
| Function | Step-Up, Step-Down | Step-Up, Step-Up/Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck, Boost | Boost, SEPIC | 
| Number of Outputs | 1 | 1 | 
| Output Phases | 1 | 1 | 
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 150V | 4.5V ~ 60V | 
| Frequency - Switching | 50kHz ~ 600kHz | 105kHz ~ 760kHz | 
| Duty Cycle (Max) | 90% | 96% | 
| Synchronous Rectifier | Yes | Yes | 
| Clock Sync | No | No | 
| Serial Interfaces | - | - | 
| Control Features | Current Limit, Power Good, Soft Start | Current Limit, Enable, Frequency Control, Power Good, Soft Start | 
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad | 
| Supplier Device Package | 38-TSSOP-EP | 20-TSSOP-EP |