LM2685MTCX/NOPB

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The LM2685MTCX/NOPB is a low-cost, monolithic, step-up dc-dc converter from Texas Instruments. It is a non-isolated buck-boost voltage regulator with a high-current integrated switch, which allows it to operate over a wide input voltage range with high efficiency. It is suitable for applications including industrial, automotive, computing, cellular communications, medical, and portable electronic devices requiring a single battery or high power USB supply. The LM2685MTCX/NOPB is a high-performance, low-cost solution for providing a regulated output voltage from an unregulated input voltage source. The device features current limiting and thermal overload protection and can deliver up to 5 A of continuous output current. The device features an internal switch with low switch current, low switch resistance, and low quiescent current. The LM2685MTCX/NOPB is designed to operate with a single input voltage as low as 1.8 V or as high as 10 V and can be used to generate an output voltage ranging from 2.5 V to 5 V when operated in buck mode, or from 2.5 V to the input voltage when operated in boost mode.

The LM2685MTCX/NOPB offers a superior combination of low components count and low cost. The device is an ideal solution for applications that require up to 5 A of load current and are sensitive to size and cost. The device is also well suited for stepping up an input voltage as low as 1.8 V, or for stepping down an input voltage as high as 10.5 V. The device can operate in both buck and boost modes, depending on the nominal output voltage, allowing the LM2685 to work with a wide range of input and output voltages.

The LM2685MTCX/NOPB has two different switching modes: Pulse-Width Modulation (PWM) and Pulse Frequency Modulation (PFM). In PWM Mode, the device is designed to maintain a constant switching frequency and regulate the output voltage with an error amplifier. In PFM Mode, the device operates in pulse frequency modulation and the switching frequency is dynamically adjusted to maintain the output voltage. This is particularly useful for light load applications, where the frequency may be adjusted to reduce the noise and improve efficiency.

The LM2685MTCX/NOPB features overcurrent and thermal shutoff protection, making it suitable for a wide range of applications. The device also has a low quiescent current, making it suitable for battery-powered and ultra-low power applications. The device has a low parts count, making it an ideal solution for space-constrained applications. The device has excellent noise and ripple rejection, making it ideal for supplying a stable voltage to sensitive electronics.

In summary, the LM2685MTCX/NOPB is a low-cost, high performance voltage regulator suitable for a wide range of applications including industrial, automotive, computing, cellular communications, medical, and portable electronic devices. The device features an internal switch with low switch current, low switch resistance, and low quiescent current. The device enables operation over a wide input voltage range with high efficiency and has overcurrent and thermal shutoff protection. It is suitable for both buck and boost switching modes and has a low parts count, making it an ideal solution for space-constrained applications. The device also has excellent noise and ripple rejection, making it ideal for supplying a stable voltage to sensitive electronics.

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