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LM2731XMFX
+BOMIC REG BOOST ADJ 1.8A SOT23-5
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #LM2731XMFX
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Bảng dữ liệu LM2731XMFX DataSheet
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Có sẵn2013
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Part Status | Obsolete |
| Function | Step-Up |
| Output Configuration | Positive |
| Topology | Boost |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 14V |
| Voltage - Output (Min / Fixed) | 2.7V |
| Voltage - Output (Max) | 22V (Switch) |
| Current - Output | 1.8A (Switch) |
| Frequency - Switching | 1.6MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| Base Product Number | LM2731 |
Tổng quan
Description
Key features include adjustable output voltage, a fixed switching frequency of 1.2MHz, and various protection mechanisms such as overcurrent protection and thermal shutdown. The LM2731XMFX also supports both a soft-start function to minimize inrush current and a shutdown mode to conserve power when the converter is not in use. Its small package size and ease of integration make it ideal for portable electronic devices, LED drivers, and other applications requiring efficient power management in a compact footprint.
Equivalent
Features
1. Input Voltage Range: Operates from 2.3V to 5.5V, making it suitable for various battery types.
2. Output Voltage: Adjustable output voltage up to 28V, ideal for powering high-voltage applications.
3. High Efficiency: Achieves efficiencies up to 95%, reducing thermal loss and extending battery life.
4. Integrated Switch: Features an internal power switch, simplifying design and reducing component count.
5. Low Quiescent Current: Offers low standby power consumption, enhancing battery performance in portable applications.
6. Overcurrent Protection: Includes built-in protection to prevent damage under overload conditions.
7. Compact Package: Available in a small 10-pin MSOP package, allowing for space-efficient designs.
8. Operating Frequency: Fixed 1.2MHz switching frequency enables small external components, optimizing PCB space.
These features make the LM2731XMFX suitable for applications like portable devices, LED drivers, and battery-powered systems.
Pinout
### Pin Functions:
1. VIN (Pin 1): Input voltage.
2. SW (Pin 2): Switch node for inductor connection.
3. GND (Pin 3): Ground reference.
4. COMP (Pin 4): Compensation node for stability.
5. FB (Pin 5): Feedback pin to regulate output voltage.
6. EN (Pin 6): Enable pin to turn the device on/off.
7. VOUT (Pin 7): Output voltage.
8. SS (Pin 8): Soft-start pin for limiting inrush current.
9. Rset (Pin 9): Resistor connection for setting output voltage.
10. NC (Pin 10): No connection.
This device is suitable for applications requiring a compact and efficient power supply solution.
Manufacturer
Application
1. Portable Devices: Used in battery-powered devices to increase voltage levels for efficient operation.
2. LED Drivers: Powers LED lighting where higher voltage is needed.
3. Power Management: Regulates voltage in embedded systems and microcontrollers.
4. Consumer Electronics: Utilized in devices like smartphones and tablets for optimizing battery life.
5. Industrial Equipment: Supplies power in various industrial applications requiring voltage boosting.
Its efficiency and small footprint make it suitable for a wide range of electronic devices.