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LM2734YMKX
+БОМIC REG BUCK ADJ 1A SOT23
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ПроизводительТехасские инструменты
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Мфр. Часть #LM2734YMKX
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В наличии4051
365 Дни гарантии качества
7*24 часы обслуживания каранти
90-гарантия послепродажного дня
Гарантия подлинного продукта
Спецификации
| Атрибут | Ценность |
| Part Status | Obsolete |
| Base Product Number | LM2734 |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3V |
| Voltage - Input (Max) | 20V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 18V |
| Current - Output | 1A |
| Frequency - Switching | 550kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package | SOT-23-6 Thin, TSOT-23-6 |
| Supplier Device Package | SOT-23-THIN |
| Packaging | Tape & Reel (TR) |
Обзор
Description
The LM2734YMKX is a high-efficiency, step-down DC-DC converter designed by Texas Instruments. It is part of the LM2734 series, which is known for its compact size and efficiency in converting higher input voltages to lower output voltages. The device operates with an input voltage range of 3.0V to 20V and can deliver up to 1A of output current, making it suitable for a variety of applications, such as powering microcontrollers, sensors, and other low-voltage devices.
The LM2734YMKX is available in a small SOT-23 package, which makes it ideal for space-constrained designs. It features a fixed switching frequency of 550 kHz, allowing for the use of small external components and reducing overall solution size. Key features include cycle-by-cycle current limiting, thermal shutdown, and a power-good output, which enhance reliability and protection. The converter’s efficiency is optimized through low R_DS(on) switches and low quiescent current, contributing to longer battery life in portable applications. Overall, the LM2734YMKX is a flexible and efficient choice for step-down voltage regulation needs.
The LM2734YMKX is available in a small SOT-23 package, which makes it ideal for space-constrained designs. It features a fixed switching frequency of 550 kHz, allowing for the use of small external components and reducing overall solution size. Key features include cycle-by-cycle current limiting, thermal shutdown, and a power-good output, which enhance reliability and protection. The converter’s efficiency is optimized through low R_DS(on) switches and low quiescent current, contributing to longer battery life in portable applications. Overall, the LM2734YMKX is a flexible and efficient choice for step-down voltage regulation needs.
Equivalent
The LM2734YMKX is a high-frequency step-down DC-DC converter. Equivalent products include:
1. TPS54331 from Texas Instruments
2. MC34063 from ON Semiconductor
3. LT1933 from Analog Devices
4. MP1584 from Monolithic Power Systems
5. LM2596 from Texas Instruments
These alternatives offer similar functionalities for step-down voltage conversion, but it's important to verify electrical specifications and package compatibility for interchangeability.
1. TPS54331 from Texas Instruments
2. MC34063 from ON Semiconductor
3. LT1933 from Analog Devices
4. MP1584 from Monolithic Power Systems
5. LM2596 from Texas Instruments
These alternatives offer similar functionalities for step-down voltage conversion, but it's important to verify electrical specifications and package compatibility for interchangeability.
Features
The LM2734YMKX is a high-frequency, step-down DC-DC converter designed by Texas Instruments. Key features include:
1. Input Voltage Range: The device supports a wide input voltage range of 3.0V to 20V, making it versatile for various applications.
2. Output Current: It can deliver up to 1A of continuous output current.
3. Switching Frequency: The converter operates at a high switching frequency of 1.6 MHz, facilitating the use of small external components and enabling a compact design.
4. Efficiency: The LM2734YMKX is optimized for high efficiency, reducing power loss and heat generation.
5. Soft-Start Capability: It includes an internal soft-start circuit to prevent inrush current during startup.
6. Protection Features: The device offers several protection mechanisms such as thermal shutdown and current limiting to enhance reliability.
7. Package: The LM2734YMKX is available in a small, thermally enhanced, 6-pin SOT-23 package, suitable for space-constrained applications.
These features make the LM2734YMKX suitable for applications like point-of-load power supplies, portable electronics, and industrial systems.
1. Input Voltage Range: The device supports a wide input voltage range of 3.0V to 20V, making it versatile for various applications.
2. Output Current: It can deliver up to 1A of continuous output current.
3. Switching Frequency: The converter operates at a high switching frequency of 1.6 MHz, facilitating the use of small external components and enabling a compact design.
4. Efficiency: The LM2734YMKX is optimized for high efficiency, reducing power loss and heat generation.
5. Soft-Start Capability: It includes an internal soft-start circuit to prevent inrush current during startup.
6. Protection Features: The device offers several protection mechanisms such as thermal shutdown and current limiting to enhance reliability.
7. Package: The LM2734YMKX is available in a small, thermally enhanced, 6-pin SOT-23 package, suitable for space-constrained applications.
These features make the LM2734YMKX suitable for applications like point-of-load power supplies, portable electronics, and industrial systems.
Pinout
The LM2734YMKX is a simple switcher synchronous step-down voltage regulator. It typically comes in a 6-pin SOT-23 package. The functions of its pins are as follows:
1. SW (Switch): This pin connects to the inductor and is the switching node where the inductor, diode, and output capacitor are connected to switch the output voltage.
2. VIN (Input Voltage): This is the input power supply pin where the input voltage is applied.
3. FB (Feedback): This pin is used to regulate the output voltage by comparing the feedback voltage to an internal reference.
4. GND (Ground): This pin is the ground reference for the IC.
5. EN (Enable): This pin is used to turn the regulator on or off. Driving the pin high enables the device, while driving it low disables it.
6. BST (Boost): This pin is used to provide a drive voltage higher than the input voltage to the high-side MOSFET for efficient switching.
These functions enable the LM2734YMKX to regulate voltage efficiently in various applications.
1. SW (Switch): This pin connects to the inductor and is the switching node where the inductor, diode, and output capacitor are connected to switch the output voltage.
2. VIN (Input Voltage): This is the input power supply pin where the input voltage is applied.
3. FB (Feedback): This pin is used to regulate the output voltage by comparing the feedback voltage to an internal reference.
4. GND (Ground): This pin is the ground reference for the IC.
5. EN (Enable): This pin is used to turn the regulator on or off. Driving the pin high enables the device, while driving it low disables it.
6. BST (Boost): This pin is used to provide a drive voltage higher than the input voltage to the high-side MOSFET for efficient switching.
These functions enable the LM2734YMKX to regulate voltage efficiently in various applications.
Manufacturer
The LM2734YMKX is manufactured by Texas Instruments. Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronics globally. It is one of the largest semiconductor companies in the world and known for its innovation in developing analog chips and embedded processors.
Application
The LM2734YMKX is a step-down DC-DC converter commonly used in applications requiring efficient power management. Key application areas include:
1. Consumer Electronics: Provides power regulation in devices like smartphones, tablets, and cameras.
2. Automotive Systems: Powers components such as infotainment systems and sensors.
3. Industrial Equipment: Used in control systems, sensors, and communication devices.
4. Networking: Powers routers, modems, and other networking hardware.
5. Medical Devices: Assists in low-power medical equipment.
6. Embedded Systems: Supplies power for microcontrollers and other digital components.
Its versatility and efficiency make it suitable for various compact, power-sensitive applications.
1. Consumer Electronics: Provides power regulation in devices like smartphones, tablets, and cameras.
2. Automotive Systems: Powers components such as infotainment systems and sensors.
3. Industrial Equipment: Used in control systems, sensors, and communication devices.
4. Networking: Powers routers, modems, and other networking hardware.
5. Medical Devices: Assists in low-power medical equipment.
6. Embedded Systems: Supplies power for microcontrollers and other digital components.
Its versatility and efficiency make it suitable for various compact, power-sensitive applications.
Package
The LM2734YMKX is a DC-DC step-down regulator from Texas Instruments. It comes in a SOT-23 package, specifically a 5-pin SOT-23 (also known as SOT-23-5) which is a small-outline, surface-mount package ideal for compact applications.
