| Part Number | LTC3870IUF-1#PBF | LTC3870EUF-1#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 | PWM Signal | PWM Signal | 
| Function | Step-Down | Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck | Buck | 
| Number of Outputs | 2 | 2 | 
| Output Phases | 2 | 2 | 
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 60V | 4.5V ~ 60V | 
| Frequency - Switching | 500kHz | 500kHz | 
| Duty Cycle (Max) | - | - | 
| Synchronous Rectifier | No | No | 
| Clock Sync | Yes | Yes | 
| Serial Interfaces | - | - | 
| Control Features | Current Limit, Enable, Frequency Control, Phase Control, Soft Start | Current Limit, Enable, Frequency Control, Phase Control | 
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 
| Supplier Device Package | 24-QFN (4x4) | 24-QFN (4x4) |