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| Part Number: | XR77128ELBTR-F | 
| Category: | Integrated Circuits (ICs) | 
| Subcategory: | PMIC - Voltage Regulators - DC DC Switching Controllers | 
| Manufacturer: | MaxLinear, Inc. | 
| Packaging: | Tape & Reel (TR) | 
| Product Status: | Obsolete | 
| Output Type: | Transistor Driver | 
| Function: | Step-Down | 
| Output Configuration: | Positive | 
| Topology: | Buck | 
| Number of Outputs: | 4 | 
| Output Phases: | 1 | 
| Voltage - Supply (Vcc/Vdd): | 5.5V ~ 25V | 
| Frequency - Switching: | 105kHz ~ 1.23MHz | 
| Duty Cycle (Max): | - | 
| Synchronous Rectifier: | Yes | 
| Clock Sync: | No | 
| Serial Interfaces: | I²C, SMBus | 
| Control Features: | Enable | 
| Operating Temperature: | -40°C ~ 125°C (TJ) | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 44-WFQFN Exposed Pad | 
| Supplier Device Package: | 44-TQFN (7x7) |