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See Product Specifications
| Part Number: | IR3640MPBF | 
| Category: | Integrated Circuits (ICs) | 
| Subcategory: | PMIC - Voltage Regulators - DC DC Switching Controllers | 
| Manufacturer: | Infineon Technologies | 
| Packaging: | Tube | 
| Product Status: | Obsolete | 
| Output Type: | Transistor Driver | 
| Function: | Step-Down | 
| Output Configuration: | Positive | 
| Topology: | Buck | 
| Number of Outputs: | 1 | 
| Output Phases: | 1 | 
| Voltage - Supply (Vcc/Vdd): | 4.5V ~ 5.5V | 
| Frequency - Switching: | 225kHz ~ 1.65MHz | 
| Duty Cycle (Max): | 92% | 
| Synchronous Rectifier: | Yes | 
| Clock Sync: | Yes | 
| Serial Interfaces: | - | 
| Control Features: | Current Limit, Enable, Frequency Control, Power Good, Sequencing, Soft Start | 
| Operating Temperature: | -40°C ~ 125°C (TJ) | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 20-VFQFN Exposed Pad | 
| Supplier Device Package: | 20-MLPQ (3x4) |