LM3668QDNTRQ1

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LM3668QDNTRQ1 is a high efficiency, low power and low noise DC to DC switching regulator from Texas Instruments. It is a regulator suitable for a wide range of application fields. This device features a high-efficiency switching architecture, up to 90% efficiency, and integrates a N-channel MOSFET and other components. It is suitable for charging lithium ion batteries and other power management systems. It has a low quiescent current and low output ripple for higher efficiency and low noise applications.

Application Field

The LM3668QDNTRQ1 is suitable for a wide range of applications. It can be used in a variety of different application fields, including:

• Portable device charging
• Power management systems
• USB powered devices
• Battery charging applications
• Automotive applications
• Industrial systems
• Wireless applications

Working Principle

The LM3668QDNTRQ1 is a DC to DC switching regulator with MOSFET switching for higher efficiency. The device has a wide input voltage range of 5V to 68V, and can be used for both step-up and step-down operations. The device includes an integrated PWM controller, a synchronous rectifier, a low-side MOSFET, and a PFM/PWM control logic circuit. It is capable of providing up to 4A output current with up to 90% efficiency and up to 2A of load current. The device provides accurate voltage regulation, enables fast transient response and low output noise.

The device has a current-mode control topology, allowing the device to respond to load and line transients quickly and accurately. It also has built-in protection features such as over current protection and thermal shutdown for safe and reliable operation. The LM3668QDNTRQ1 provides adjustable Soft Start/Soft Stop timing, pre-bias operation, external synchronization of the oscillator, and a wide range of output voltage options.

Conclusion

The LM3668QDNTRQ1 is a high efficiency, low power and low noise DC to DC switching regulator from Texas Instruments. It is suitable for a wide range of application fields, including portable device charging, power management systems, USB powered devices, battery charging applications, automotive applications, industrial systems, and wireless applications. The device has a current-mode control topology and provides adjustable Soft Start/Soft Stop timing, pre-bias operation, external synchronization of the oscillator, and a wide range of output voltage options. It also has built-in protection features such as over current protection and thermal shutdown for safe and reliable operation.

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