| Part Number | L6739TR | L6732TR | 
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | 
| Category | PMIC - Voltage Regulators - DC DC Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers | 
|   |   | |
| Product Status | Active | Obsolete | 
| Output Type | Transistor Driver | Transistor Driver | 
| Function | Step-Down | Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck | Buck | 
| Number of Outputs | 1 | 1 | 
| Output Phases | 1 | 1 | 
| Voltage - Supply (Vcc/Vdd) | 4.75V ~ 13.2V | 4.5V ~ 14V | 
| Frequency - Switching | 200kHz | 250kHz, 500kHz | 
| Duty Cycle (Max) | 100% | 100% | 
| Synchronous Rectifier | Yes | Yes | 
| Clock Sync | No | Yes | 
| Serial Interfaces | - | - | 
| Control Features | Enable, Frequency Control, Phase Control, Power Good | Current Limit, Enable, Phase Control, Power Good, Soft Start | 
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 16-VFQFN Exposed Pad | 16-PowerTSSOP (0.173", 4.40mm Width) | 
| Supplier Device Package | 16-VFQFN (3x3) | 16-HTSSOP |