LM2664M6

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LM2664M6 is a DC/DC switch voltage regulator with improved performance, efficiency and low quiescent current. It is a 1.8 V to 5.5V input, 1.0A output, synchronous boost DC-DC regulator with automatic PFM/PWM switching. It works off a single supply and provides a regulated output voltage with very few external components. The LM2664M6 is built using advanced switched capacitor technology and provides many features that allow the user to better manage their system.

The LM2664M6 has many applications, such as charging single cell Li sites, powering system components, and low power and low noise power supply design. Its main applications include broadband communications, DSL, security and medical systems, consumer electronics, automotive, and industrial control systems.

The LM2664M6 works in two different modes, Pulse Frequency Modulation (PFM) mode and Pulse Width Modulation (PWM) mode. In this device, the output voltage is controlled by the modulation of the buck-boost converter frequency. The LM2664M6 can switch between modes to find the best combination of voltage regulation accuracy and quiescent current for the specific application. In PFM mode, an internal comparator and current reference monitor the output voltage and control the switching frequency to hold the output voltage. In PWM mode, the output voltage can be adjusted by varying the duty cycle of the switching waveforms. The duty cycle of the switching waveform is varied based on the error between the output voltage and the internal reference voltage.

The LM2664M6 has a low quiescent current of 4 μA in PFM mode and 12 μA in PWM mode. This allows the device to operate with a low power consumption. The wide operating temperature range of -40°C to +85°C makes it suitable for operation in a variety of applications. Furthermore, the device is completely short-circuit proof and supplies up to 1A of continuous output current.

In conclusion, the LM2664M6 is a high-performance, high-efficiency, low-quiescent current synchronous boost DC-DC regulator suitable for powering system components and low power/low noise power supply designs. Its automatic PFM/PWM switching capability helps it adapt to different applications and provide the best performance. With a low quiescent current, wide operating temperature, and short-circuit protection, the LM2664M6 is a great choice for many applications.

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