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LM2611AMF
Product for LM2611AMF
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製造商零件號 # : LM2611AMF
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包裝/封裝: SOT-23 (DBV)-5
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製造商: Texas Instruments
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產品分類 : Voltage Regulators - DC DC Switching Regulators
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LM2611AMF 數據表
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詳細說明
Featuring a shutdown pin for power saving, the LM2611 also includes a negative feedback (NFB) pin for easy output voltage adjustment using just two resistors. The cycle-by-cycle current limiting and internal compensation further enhance the usability of the LM2611. It is available in a small 5-pin, SOT-23 package and comes in two grades – Grade A with a 1.2A current limit and 0.5-Ω RDS(ON), and Grade B with a 0.9A current limit and 0.7-Ω RDS(ON)
主要特徵
- High Efficiency and Low Noise
- Ultra-Low Quiescent Current
- Fast Start-Up Time and Soft-Start
- Low Dropout Voltage: 2.3 V at 300 mA
- Compact SOT-23 Package
- Excellent Line Regulation
應用
- Highly versatile voltage regulator
- Efficient power management solution
- Perfect for portable electronics
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Topology | CuK, Inverting | Vin (min) (V) | 2.7 |
| Vin (max) (V) | 14 | Vout (max) (V) | -1.23 |
| Vout (min) (V) | -32 | Features | Light Load Efficiency |
| Switch current limit (typ) (A) | 1.2 | Switching frequency (min) (kHz) | 1400 |
| Switching frequency (max) (kHz) | 1400 | Iq (typ) (mA) | 1.8 |
| Iout (max) (A) | 0.4 | Rating | Catalog |
| Operating temperature range (°C) | -40 to 125 | Type | Converter |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is LM2611AMF?
The LM2611AMF is a step-up DC-DC voltage regulator designed by Texas Instruments. It is specifically designed for white LED applications in small-sized LCD backlighting, flashlights, and camera flash modules.
How Does LM2611AMF Work?
The LM2611AMF operates by converting a lower input voltage to a higher output voltage suitable for driving white LEDs. It utilizes a boost topology to efficiently step up the voltage, providing constant current to the LEDs for consistent brightness levels.
How Many Pins does LM2611AMF have and What are the Functions of the Pinout Configuration?
The LM2611AMF is housed in a 6-pin SOT-23 package. The pinout configuration includes:
- VIN: Input voltage pin.
- VOUT: Output voltage pin.
- FB: Feedback pin for setting the output current.
- GND: Ground pin.
- EN: Enable pin.
- NC: No connect pin.
What are the Pros and Cons of LM2611AMF?
Pros:
- Efficient LED Driving: Designed specifically for white LED applications, ensuring optimal performance and brightness.
- Small Package: Compact SOT-23 package for space-constrained designs.
- Wide Input Voltage Range: Can operate with a wide input voltage range, enhancing versatility.
- Feedback Control: Allows for precise adjustment of LED current levels.
Cons:
- Limitation to LED Applications: Specifically tailored for white LED driving, may not be suitable for other voltage regulation tasks.
- Limited Features: Basic functionality compared to more advanced DC-DC converters.
- Thermal Considerations: Heat dissipation management may be required due to current handling capabilities.
Are There Any Equivalents/Alternatives to LM2611AMF for Recommendation?
- The LM3414 from Texas Instruments is a buck-boost LED driver suitable for various LED applications.
- Alternatives to the LM2611AMF include the MP3302 from Monolithic Power Systems and the AS1310 from ams AG.
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