Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Obsolete |
| Function | Step-Up |
| OutputConfiguration | Positive |
| Topology | Boost |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 2.7V |
| Voltage-Input(Max) | 14V |
| Voltage-Output(Min/Fixed) | 2.7V |
| Voltage-Output(Max) | 40V (Switch) |
| Current-Output | 1A (Switch) |
| Frequency-Switching | 1.6MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | SC-74A, SOT-753 |
Обзор
Description
The LM2733XMFX is a high-frequency boost converter IC from Texas Instruments, designed to provide efficient voltage step-up in a compact package. It operates with a switching frequency of 1.6 MHz, which allows the use of small external components and minimizes the size of the solution. The device can deliver up to 1.6A of switch current, making it suitable for a variety of applications requiring voltage boost, such as powering LEDs, LCD displays, or portable devices.
Key features include a wide input voltage range of 2.7V to 14V, which offers flexibility in various power supply scenarios. It also includes integrated power MOSFETs, which contribute to its high efficiency and reduced component count. The LM2733XMFX comes in a SOT-23-5 package that supports space-constrained applications. It includes built-in protection features such as over-current protection and thermal shutdown to ensure reliable operation.
Overall, the LM2733XMFX is an excellent choice for designers seeking a compact and efficient boost converter solution in various electronic applications.
Key features include a wide input voltage range of 2.7V to 14V, which offers flexibility in various power supply scenarios. It also includes integrated power MOSFETs, which contribute to its high efficiency and reduced component count. The LM2733XMFX comes in a SOT-23-5 package that supports space-constrained applications. It includes built-in protection features such as over-current protection and thermal shutdown to ensure reliable operation.
Overall, the LM2733XMFX is an excellent choice for designers seeking a compact and efficient boost converter solution in various electronic applications.
Equivalent
The LM2733XMFX is a boost converter from Texas Instruments. Equivalent products include the LT1615 from Analog Devices, the TPS61097 from Texas Instruments (another option from the same manufacturer), and the MAX1703 from Maxim Integrated (now part of Analog Devices). These alternatives offer similar boosting functions, but ensure to check specific parameters like input voltage range, output current, and efficiency to match your design requirements.
Features
The LM2733XMFX is a boost converter from Texas Instruments designed for use in a variety of applications that require efficient power conversion. Key features include:
1. Wide Input Voltage Range: Operates from 2.7V to 14V, making it versatile for different power sources.
2. High Switching Frequency: Available in 600 kHz and 1.6 MHz options, allowing the use of small external components and enabling compact design.
3. Output Voltage: Capable of boosting the voltage to as high as 40V, suitable for applications needing high output voltage.
4. Efficiency: Achieves high efficiency up to 90%, minimizing power loss and heat generation.
5. Low Shutdown Current: Consumes minimal power when in shutdown mode, aiding in battery-powered applications.
6. Small Package: Offered in a SOT-23 package, allowing for space-constrained designs.
7. Protection Features: Includes overcurrent protection and thermal shutdown to enhance reliability and safety.
These features make the LM2733XMFX suitable for applications like LCD bias supplies, battery-powered devices, and consumer electronics.
1. Wide Input Voltage Range: Operates from 2.7V to 14V, making it versatile for different power sources.
2. High Switching Frequency: Available in 600 kHz and 1.6 MHz options, allowing the use of small external components and enabling compact design.
3. Output Voltage: Capable of boosting the voltage to as high as 40V, suitable for applications needing high output voltage.
4. Efficiency: Achieves high efficiency up to 90%, minimizing power loss and heat generation.
5. Low Shutdown Current: Consumes minimal power when in shutdown mode, aiding in battery-powered applications.
6. Small Package: Offered in a SOT-23 package, allowing for space-constrained designs.
7. Protection Features: Includes overcurrent protection and thermal shutdown to enhance reliability and safety.
These features make the LM2733XMFX suitable for applications like LCD bias supplies, battery-powered devices, and consumer electronics.
Pinout
The LM2733XMFX is a step-up DC-DC converter from Texas Instruments. It is commonly used in applications requiring a boost in voltage. The device is available in a 5-pin SOT-23 package. Here’s a concise description of its pin functions:
1. SW (Switch): This pin is connected to the inductor and diode. It is the switch node, carrying the switching current.
2. GND (Ground): This is the ground pin connected to the system ground.
3. FB (Feedback): This pin senses the output voltage for regulation purposes and is connected to an external resistor-divider network.
4. SHDN (Shutdown): This pin is used to enable or disable the device. A high level turns the device on, while a low level places it in shutdown mode, reducing current consumption.
5. VIN (Input Voltage): This is the power supply input pin for the device.
The LM2733 provides efficient voltage conversion with a high switching frequency, allowing the use of small inductors and capacitors, which is ideal for space-constrained applications.
1. SW (Switch): This pin is connected to the inductor and diode. It is the switch node, carrying the switching current.
2. GND (Ground): This is the ground pin connected to the system ground.
3. FB (Feedback): This pin senses the output voltage for regulation purposes and is connected to an external resistor-divider network.
4. SHDN (Shutdown): This pin is used to enable or disable the device. A high level turns the device on, while a low level places it in shutdown mode, reducing current consumption.
5. VIN (Input Voltage): This is the power supply input pin for the device.
The LM2733 provides efficient voltage conversion with a high switching frequency, allowing the use of small inductors and capacitors, which is ideal for space-constrained applications.
Manufacturer
The LM2733XMFX is a product manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide array of analog and embedded processing chips. The company is known for its strong emphasis on research and development, innovation, and providing solutions that improve efficiency and performance across various industries, including automotive, industrial, personal electronics, and communications equipment. TI is recognized for its high-quality products and is a leader in the semiconductor industry.
Application
The LM2733XMFX is a step-up DC-DC converter, primarily used in applications requiring voltage boosting. It is suitable for battery-powered devices, LCD displays, and white LED drivers due to its high efficiency and small size. The device is also used in portable electronics, such as smartphones and tablets, to boost battery voltage for various internal components. Additionally, it is used in low-power applications like sensor networks and wireless communication devices where efficient power conversion is crucial. The LM2733XMFX can also be found in automotive and industrial applications where compact and efficient power solutions are needed.
Package
The LM2733XMFX is a boost converter IC from Texas Instruments, packaged in a SOT-23-5 (Small Outline Transistor) configuration. This package type is compact, featuring five pins, and is suitable for space-constrained applications.
