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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- The LM3100 Synchronously Rectified Buck Converter features all functions needed to implement a highly efficient, cost effective buck regulator capable of supplying 1.5 A to loads with voltages as low as 0.8 V. Dual 40 V N-Channel synchronous MOSFET switches allow for low external component thus reducing complexity and minimizing board space. The LM3100 is designed to work exceptionally well with ceramic and other very low ESR output capacitors. The Constant ON-Time (COT) regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. Through the use of a unique design the regulator does not rely on output capacitor ESR for stability, as do most other COT regulators. The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include VCC under-voltage lockout, thermal shutdown and gate drive under-voltage lockout. The part is available in a thermally enhanced HTSSOP-20 package
- Input Voltage Range 4.5 V to 36 V
- 1.5 A Output Current
- 0.8 V, ±1.5% Reference
- Integrated 40 V, Dual N-Channel Buck Synchronous Switches
- Low Component Count and Small Solution Size
- No Loop Compensation Required
- Ultra-Fast Transient Response
- Stable With Ceramic and Other Low ESR Capacitors
- Programmable Switching Frequency up to 1 MHz
- Max. Duty Cycle Limited During Start-Up
- Valley Current Limit
- Precision Internal Reference for Adjustable Output Voltage Down to 0.8 V
- Thermal Shutdown
- Thermally Enhanced HTSSOP-20 Package
- All trademarks are the property of their respective owners.
LM3100 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Case/Package | HTSSOP-20 |
| Show | |
| Product Lifecycle Status | |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
Order guide
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- Delivery date: usually 2 to 7 working days.
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- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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