Texas Instruments

LM2661MMX/NOPB

LM2661MMX/NOPB Description

The LM2661MMX/NOPB is a highly efficient, fixed-output voltage regulator designed by Texas Instruments. This device is part of the Power Management Integrated Circuit (PMIC) category and is ideal for applications requiring a reliable and compact power solution. The LM2661MMX/NOPB operates with an input voltage range of 1.5V to 5.5V and delivers a stable output current of up to 100mA. It features a ratiometric function, ensuring that the output voltage is proportional to the input voltage, which is particularly useful in applications where the input voltage may vary.

The LM2661MMX/NOPB employs a charge pump topology, which provides high efficiency and low power consumption, making it suitable for battery-powered devices. The device supports both positive and negative output configurations, offering flexibility in design. It operates at switching frequencies of 5kHz and 40kHz, allowing for optimized performance based on the specific requirements of the application.

LM2661MMX/NOPB Features

• Fixed Output Voltage: Ensures a stable and reliable power supply, ideal for sensitive electronic components.
• Wide Input Voltage Range (1.5V to 5.5V): Provides compatibility with a variety of power sources, including single-cell batteries.
• 100mA Output Current: Sufficient for powering small to medium-sized electronic devices.
• Ratiometric Function: Maintains a consistent output-to-input voltage ratio, enhancing stability in fluctuating input conditions.
• Charge Pump Topology: Offers high efficiency and low power consumption, crucial for battery-operated applications.
• Positive or Negative Output Configuration: Adds versatility to the design, catering to different circuit requirements.
• Surface Mount Packaging: Facilitates easy integration into compact PCB designs.
• Obsolete Status: While no longer in production, the LM2661MMX/NOPB remains a reliable choice for existing designs and legacy systems.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level 1 (Unlimited): Suitable for storage and handling in various environmental conditions.

LM2661MMX/NOPB Applications

The LM2661MMX/NOPB is well-suited for a range of applications, particularly those requiring efficient power management and compact design. Specific use cases include:

• Portable Electronic Devices: Ideal for powering small gadgets such as handheld gaming consoles, MP3 players, and portable GPS units.
• Battery-Powered Systems: Suitable for applications where battery life is critical, such as wireless sensors and remote monitoring devices.
• Consumer Electronics: Can be used in various consumer products that require stable power supply and compact form factor.
• Industrial Applications: Applicable in industrial devices that need reliable power management and robust performance.

Conclusion of LM2661MMX/NOPB

The LM2661MMX/NOPB from Texas Instruments is a versatile and efficient power management solution designed for a wide range of applications. Its fixed output voltage, wide input range, and ratiometric function make it a reliable choice for both positive and negative output configurations. The charge pump topology ensures high efficiency and low power consumption, which is essential for battery-operated devices. Despite its obsolete status, the LM2661MMX/NOPB remains a valuable component for existing designs and legacy systems, offering compliance with environmental and regulatory standards. Its surface mount package and moisture sensitivity level 1 rating further enhance its suitability for various industrial and consumer applications.