LM2687MM/NOPB

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LM2687MM/NOPB is a high performance DC-DC switching regulator designed to meet the needs of advanced power management in a variety of applications. It uses a powerful PWM control scheme that combines precise dynamic and static regulation with compact size and low power consumption. TheLM2687MM/NOPB offers wide input voltage range, high efficiency and features like programmable switching frequency and soft-start. The output voltage can be externally adjusted by using a voltage feedback loop.The LM2687MM/NOPB is a current-mode control, fixed frequency, synchronous buck regulator with integrated high-side and low-side pass FETs. It employs a voltage-mode control scheme and is capable of driving up to 10A load. The output voltage is regulated to a user-defined level by adjusting the switching frequency and duty cycle. The LM2687MM/NOPB is optimized for low voltage buck application in consumer, industrial, automobile and medical systems.

The LM2687MM/NOPB has an input voltage range of up to 40V, and can provide up to 10A of output load current with a very low quiescent current of just 7mA. It operates at a fixed frequency of 200kHz and can be easily synchronized to the system clock allowing easy design of clock divider circuits. Its low noise performance and fast transient response make it ideal for applications requiring high accuracy and reliability.

The device features an integrated 4-step PWM control with adjustable soft-start and programmable clock synchronization. It also includes programmable overvoltage and undervoltage protection circuitry for both the input and output. The output voltage is adjustable with an external voltage feedback loop and optional load current measurement is also available. The device includes thermal protection andUVLO protection for safety and reliability.

The LM2687MM/NOPB can operate in either power-saving mode (PSM) or burst mode (BM), allowing even more power savings in applications that require low overall power consumption. In PSM, the device constantly monitors the output voltage and switches at reduced frequency when an output voltage deviation falls within a predefined tolerance range. This reduces the amount of power dissipated and the corresponding temperature rise. In BM, the device switches at a period equivalent of a few kHz when the load current is low, providing maximum power savings when the load current is small.

The LM2687 MM/NOPB is a versatile and powerful switch-mode regulator suitable for a range of applications such as automotive, consumer, industrial, and medical systems. It offers superior performance at low current levels and its integrated power-saving mode makes it well-suited for designs targeting low overall power consumption. Its high efficiency, low quiescent current, and adjustable switching frequency provide designers with a wide range of options for their system design.

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