| Allicdata Part #: | LM3676SDX-3.3/NOPB-ND |
| Manufacturer Part#: |
LM3676SDX-3.3/NOPB |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Texas Instruments |
| Short Description: | IC REG BUCK 3.3V 0.6A SYNC 8WSON |
| More Detail: | Buck Switching Regulator IC Positive Fixed 3.3V 1 ... |
| DataSheet: |  LM3676SDX-3.3/NOPB Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Voltage - Output (Min/Fixed): | 3.3V |
| Base Part Number: | LM3676 |
| Supplier Device Package: | 8-WSON (3x3) |
| Package / Case: | 8-WFDFN Exposed Pad |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -30°C ~ 85°C (TA) |
| Synchronous Rectifier: | Yes |
| Frequency - Switching: | 2MHz |
| Current - Output: | 600mA |
| Voltage - Output (Max): | -- |
| Series: | -- |
| Voltage - Input (Max): | 5.5V |
| Voltage - Input (Min): | 2.9V |
| Number of Outputs: | 1 |
| Output Type: | Fixed |
| Topology: | Buck |
| Output Configuration: | Positive |
| Function: | Step-Down |
| Part Status: | Obsolete |
| Packaging: | Tape & Reel (TR) |
Description
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The LM3676SDX-3.3/NOPB is a Highly Integrated, High Efficiency Switch Mode DC-DC Converter that targets notebook and netbook computers applications. It is a complete solution, including internal MOSFETs, switching FET drivers, low dropout linear regulators, a power good comparator and frequency foldback logic block. The LM3676SDX-3.3/NOPB provides a 3.3V 400mA supply by using two low dropout linear regulators and one DC/DC buck switching regulator. With its integration and miniaturisation, the LM3676SDX-3.3/NOPB is ideal for powering notebook and netbook computer circuits.
Application Field:
The LM3676SDX-3.3/NOPB is ideal for powering notebook and netbook computer circuits. The switcher consists of two separate regulation loops, each responsible for a specific output voltage - 3.3V, generated by two low dropout linear regulators (LDOs). It includes two switching MOSFETs and two drivers, as well as a power good comparator and frequency foldback logic to control product EMI. The LM3676SDX-3.3/NOPB is a complete, high-efficiency, monolithic, DC/DC switching regulator, specifically designed for applications where efficiency and miniaturisation are absolutely paramount.
Working Principle:
The working principle of the LM3676SDX-3.3/NOPB is to regulate and maintain an output voltage through the use of two low dropout linear regulators, as well as a DC/DC buck switching regulator. The switching regulator is used to boost the voltage of the input voltage, while the linear regulators provide the higher output voltage and current. The LM3676SDX-3.3/NOPB monitors output voltage and current levels by using feedback signals, which it then adjusts by changing the switching period of the switching FETs. The frequency foldback logic block is used to adjust the switching frequency and maximize efficiency.
The LM3676SDX-3.3/NOPB also includes a number of additional features including an overvoltage protection circuit and overtemperature protection logic, as well as thermal protection. The LM3676SDX-3.3/NOPB supports a wide input voltage range, making it suitable for applications in both laptop and desktop computers. The LM3676SDX-3.3/NOPB is highly integrated and extremely efficient, providing designers with a low cost and high performance solution for notebook and netbook computer power requirements.
The specific data is subject to PDF, and the above content is for reference
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