LM5642XMHX
IC REG CTRLR BUCK 28ETSSOPManufacturer: Texas Instruments
Categories: DC DC Switching Controllers
Quality Control: Learn More
Texas Instruments LM5642XMHX is a dual-output synchronous buck controller designed for efficient step-down DC-DC conversion. This device features a 375kHz switching frequency and offers advanced control options including current limiting, enable functionality, and soft-start. The LM5642XMHX supports a wide input voltage range from 4.5V to 36V and boasts a high maximum duty cycle of 98.9%. Its architecture is optimized for positive output configurations, with two output phases for enhanced power delivery.
The controller integrates synchronous rectification for improved efficiency and is supplied in a 28-HTSSOP package, suitable for surface mounting. The LM5642XMHX is engineered for demanding applications across various industries, including industrial power supplies, automotive systems, and telecommunications infrastructure. Operating temperature range is -40°C to 125°C (TJ). This component is presented in Tape & Reel packaging.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tape & Reel (TR)Datasheet:Download Free CAD Model:
Technical Details:
| Packaging | Tape & Reel (TR) |
| Package / Case | 28-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 | 375kHz |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 36V |
| Supplier Device Package | 28-HTSSOP |
| Synchronous Rectifier | Yes |
| Control Features | Current Limit, Enable, Soft Start |
| Serial Interfaces | - |
| Output Phases | 2 |
| Duty Cycle (Max) | 98.9% |
| Clock Sync | Yes |
| Number of Outputs | 2 |
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