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LT3990IDD#TRPBF
+BOMIC REG BUCK ADJ 350MA 10DFN
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Nhà sản xuấtCông ty Analog Devices Inc.
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Ông. Phần #LT3990IDD#TRPBF
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Bảng dữ liệu LT3990IDD#TRPBF DataSheet
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Gói 10-WFDFN
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Có sẵn6999
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.2V |
| Voltage-Input(Max) | 62V |
| Voltage-Output(Min/Fixed) | 1.21V |
| Voltage-Output(Max) | 25V |
| Current-Output | 350mA |
| Frequency-Switching | 210kHz ~ 2.3MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 10-WFDFN Exposed Pad |
Tổng quan
Description
Key features of the LT3990 include:
- Input Voltage Range: 4.3V to 60V, accommodating a wide range of industrial and automotive applications.
- Output Voltage: Adjustable from 1.2V to 36V, allowing flexibility in various circuit designs.
- Output Current: Capable of delivering up to 350mA, suitable for moderate power needs.
- Efficiency: High efficiency (up to 90%) due to its switching design, reducing power loss and thermal issues.
- Frequency: Programmable switching frequency from 200kHz to 2.5MHz, providing a trade-off between efficiency and component size.
- Protection Features: Includes thermal shutdown, short-circuit protection, and overcurrent protection for enhanced reliability.
The LT3990IDD#TRPBF comes in a thermally enhanced 8-lead DD (3mm x 3mm) package, marked for surface-mount assembly, making it ideal for densely packed electronic designs.
Equivalent
1. Texas Instruments LM5165: A high-efficiency, low quiescent current synchronous buck converter.
2. Microchip MCP16301: A high-efficiency buck regulator with adjustable output.
3. Maxim Integrated MAX17502: A high-efficiency, synchronous step-down DC-DC converter.
4. Diodes Incorporated AP63205: A 2A synchronous buck converter.
These alternatives offer similar functionality with variations in features such as output current, efficiency, and package type. Always verify specific requirements to ensure compatibility.
Features
1. Input Voltage Range: It operates with an input voltage range from 4V to 60V, making it versatile for various applications.
2. Output Current: The device can deliver up to 350mA of output current.
3. Switching Frequency: It features an adjustable switching frequency between 200kHz and 2.5MHz, allowing for optimization of efficiency and size.
4. Efficiency: The regulator is designed for high efficiency, even at low output currents, through its Burst Mode operation.
5. Low Quiescent Current: It has a low quiescent current of 2.7μA in Burst Mode, which is ideal for battery-operated devices.
6. Protection Features: The LT3990 includes features such as short-circuit protection, thermal shutdown, and soft-start to ensure reliable operation.
7. Package: It comes in a 10-lead (3mm x 3mm) DFN package with a thermally enhanced design.
These features make the LT3990 suitable for automotive, industrial, and distributed power systems, where wide input voltage range and high efficiency are crucial.