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LM2745MTCX
+BOMIC REG CTRLR BUCK 14TSSOP
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제조업체텍사스 인스트루먼트(주)
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제조업체 부품 #LM2745MTCX
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데이터시트 LM2745MTCX DataSheet
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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
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
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
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
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 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.