LM2746MXA/NOPB
SWITCHING REGULATOR/CONTROLLERManufacturer: National Semiconductor
Categories: DC DC Switching Controllers
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The National Semiconductor LM2746MXA-NOPB is a high-performance, positive output, step-down DC-DC controller IC. This buck regulator features a transistor driver output and operates from a 3V to 5.5V supply. Its switching frequency is adjustable from 50kHz to 1MHz, with a maximum duty cycle of 80%. The device integrates essential control features including current limit, enable, frequency control, power good, soft start, and tracking. It supports synchronous rectification for improved efficiency. The LM2746MXA-NOPB is housed in a 14-HTSSOP package suitable for surface mounting and operates within an ambient temperature range of -40°C to 125°C (TJ). This component finds application in power management solutions for various industries including telecommunications, industrial automation, and consumer electronics.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 14-PowerTSSOP (0.173"", 4.40mm Width) |
| Output Type | Transistor Driver |
| Mounting Type | Surface Mount |
| Function | Step-Down |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Output Configuration | Positive |
| Frequency - Switching | 50kHz ~ 1MHz |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 5.5V |
| Supplier Device Package | 14-HTSSOP |
| Synchronous Rectifier | Yes |
| Control Features | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking |
| Serial Interfaces | - |
| Output Phases | 1 |
| Duty Cycle (Max) | 80% |
| Clock Sync | No |
| Number of Outputs | 1 |
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