LM2745MTCX

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LM2745MTCX

+BOM

IC REG CTRLR BUCK 14TSSOP

  • 제조업체텍사스 인스트루먼트(주)

  • 제조업체 부품 #LM2745MTCX

  • 데이터시트 LM2745MTCX DataSheet

  • 재고9846

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사양

속성 가치
Part Status Obsolete
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive
Topology Buck
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 3V ~ 6V
Frequency - Switching 50kHz ~ 1MHz
Duty Cycle (Max) 86%
Synchronous Rectifier Yes
Clock Sync Yes
Control Features Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 14-TSSOP
Base Product Number LM2745

개요

Description

The LM2745MTCX is a high-performance, dual-output, synchronous step-down DC-DC regulator designed for efficient power conversion in various applications, including consumer electronics, telecommunications, and industrial systems. It operates over a wide input voltage range, typically from 4.5V to 16V, making it versatile for different power supply environments.
This regulator features a peak current mode control architecture, which ensures excellent transient response and stability, as well as built-in protections like overcurrent and thermal shutdown. The LM2745MTCX can deliver up to 1.5A per channel with adjustable output voltage settings, allowing designers to tailor the output to specific requirements.
Additionally, it includes an integrated power switch for reduced component count and improved efficiency. The device supports various power-saving modes, optimizing performance for light load conditions. Its small footprint and low thermal resistance make it suitable for compact designs, ensuring reliability and performance in demanding applications. Overall, the LM2745MTCX is an ideal choice for efficient, reliable power management solutions.

Equivalent

The LM2745MTCX is a high-frequency, dual-output synchronous buck regulator. Equivalent products include:
1. TPS563201 - Texas Instruments
2. LTC3851 - Analog Devices
3. MICROCHIP MCP16301 - Microchip Technology
4. LM2675 - Texas Instruments
5. LT1763 - Analog Devices
Always check the specific requirements and specifications to ensure compatibility.

Features

The LM2745MTCX is a high-performance, synchronous step-down voltage regulator designed for efficient power management in various applications. Key features include:
1. Input Voltage Range: Operates from 4.5V to 17V, accommodating a wide range of input sources.
2. Output Current: Capable of delivering up to 5A of continuous output current.
3. High Efficiency: Provides high efficiency, typically above 90%, reducing thermal and power losses.
4. Integrated FETs: Includes internal high-side and low-side MOSFETs, minimizing external component count.
5. Adjustable Output Voltage: Output voltage can be set from 0.8V to 12V using external resistors.
6. Protection Features: Equipped with overcurrent protection, thermal shutdown, and under-voltage lockout.
7. Compact Package: Offered in a thermally enhanced MTCX package, saving board space.
8. Switching Frequency: Operates at a fixed frequency of 500kHz, ensuring stable performance.
Ideal for point-of-load applications, the LM2745MTCX is suitable for consumer electronics, industrial equipment, and portable devices.

Pinout

The LM2745MTCX is a dual-channel, synchronous buck controller with a pin count of 16. Its primary function is to provide efficient DC-DC conversion for various applications, including power management in consumer electronics and automotive systems.
Key functions of the LM2745 include:
1. Dual Output: Supports two independent voltage outputs.
2. Synchronous Rectification: Increases efficiency by utilizing both high-side and low-side MOSFETs.
3. Adjustable Output Voltage: Allows users to set the output voltage according to specific requirements.
4. Current Mode Control: Enhances transient response and stability.
5. Integrated Soft-Start: Reduces inrush current during startup.
6. Overcurrent Protection: Safeguards the device and load from excessive current.
The specific pin assignments enable functions such as power ground, feedback, enable, and more, which are essential for its operation in various configurations.

Manufacturer

The LM2745MTCX is manufactured by Texas Instruments (TI), a prominent technology company known for designing and manufacturing semiconductors and various integrated circuits. Founded in 1930, Texas Instruments specializes in a broad range of electronic components, including analog devices, embedded processors, and digital signal processors. The company serves multiple markets, such as automotive, industrial, communications, and consumer electronics.
The LM2745MTCX itself is a dual-output, step-down voltage regulator, designed for efficient power management in various applications. Texas Instruments is recognized for its innovation and extensive portfolio of products that enable engineers to develop advanced electronic systems.

Application

The LM2745MTCX is a dual-channel, high-speed operational amplifier commonly used in applications such as audio processing, signal conditioning, and data acquisition systems. Its low noise and high bandwidth make it suitable for precision instrumentation and medical devices. Additionally, it is utilized in feedback loops for power amplifiers, active filters, and sensor interfaces. The amplifier is ideal for systems requiring high accuracy and fast response times, including industrial automation and communication equipment.

Package

The LM2745MTCX is packaged in a 20-pin TSSOP (Thin Shrink Small Outline Package) format.

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