LM2731XMFX

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LM2731XMFX

+物料清單

IC REG BOOST ADJ 1.8A SOT23-5

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規格

屬性 價值
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

概述

Description

The LM2731XMFX is a high-efficiency, step-up (boost) DC-DC converter designed to provide a regulated output voltage from a lower input voltage source. It features an integrated 1.2A switch, offering up to 85% efficiency, making it suitable for battery-powered applications where maximizing runtime is essential. The device operates over a wide input voltage range of 2.7V to 5.5V and can deliver an output voltage of up to 28V.
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

Equivalent products to the LM2731XMFX include the TPS63060 from Texas Instruments, MAX8684 from Maxim Integrated, and LTC3625 from Analog Devices. These alternatives offer similar features such as step-up/step-down conversion and adjustable output voltages. However, it's essential to compare specifications like input voltage range, output current capability, and efficiency to ensure compatibility with your application.

Features

The LM2731XMFX is a high-efficiency step-up (boost) DC-DC converter designed for powering devices from low-voltage sources. Key features include:
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

The LM2731XMFX is a step-up (boost) voltage regulator with a pin count of 10. It is designed to efficiently convert a low input voltage to a higher output voltage, making it suitable for battery-powered applications.
### 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

The LM2731XMFX is manufactured by Texas Instruments (TI), a well-known semiconductor company. Founded in 1930 and based in Dallas, Texas, Texas Instruments designs and produces a wide range of electronic components, including analog ICs, embedded processors, and digital signal processors. The company is a leader in the analog and embedded processing sectors, providing innovative solutions for various applications in industries such as automotive, industrial, communications, and consumer electronics. TI is recognized for its commitment to research and development, contributing to advancements in technology and electronics. The LM2731XMFX itself is a step-up voltage regulator, often utilized in power management applications, demonstrating TI's focus on providing efficient and reliable electronic components for various technological needs.

Application

The LM2731XMFX is a step-up (boost) DC-DC converter designed for applications requiring a compact power supply solution. Key application areas include:
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.

Package

The LM2731XMFX is packaged in a small, 10-lead MSOP (Micro Small Outline Package) form factor.