XR77129ELB-F
IC REG CTRLR BUCK SMBUS 44TQFNManufacturer: MaxLinear, Inc.
Categories: DC DC Switching Controllers
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The MaxLinear, Inc. XR77129ELB-F is a versatile DC-DC controller IC designed for step-down power conversion. This component features a 4-output architecture, with each output configured as a positive, transistor driver stage, operating in a buck topology. It supports a wide input voltage range of 6V to 40V and offers flexible switching frequencies from 105kHz up to 1.23MHz. Control is managed via I2C and SMBus serial interfaces, with an enable feature for power sequencing. The XR77129ELB-F incorporates a synchronous rectifier for improved efficiency and is housed in a 44-TQFN (7x7) exposed pad package. This device is suitable for applications in networking, industrial automation, and consumer electronics requiring efficient, multi-phase voltage regulation. It operates reliably within an ambient temperature range of -40°C to 125°C.
Additional Information
Series: -RoHS Status: RoHS CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TrayDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Tray |
| Package / Case | 44-WFQFN Exposed Pad |
| Output Type | Transistor Driver |
| Mounting Type | Surface Mount |
| Function | Step-Down |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Output Configuration | Positive |
| Frequency - Switching | 105kHz ~ 1.23MHz |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) | 6V ~ 40V |
| Supplier Device Package | 44-TQFN (7x7) |
| Synchronous Rectifier | Yes |
| Control Features | Enable |
| Serial Interfaces | I2C, SMBus |
| Output Phases | 1 |
| Duty Cycle (Max) | - |
| Clock Sync | No |
| Number of Outputs | 4 |
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