LTC3388IDD-3#TRPBF

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The LTC3388IDD-3#TRPBF is a synchronous multi-phase DC/DC buck-boost regulator, specifically designed to provide both a high voltage boost and a low voltage buck conversion from an input supply. This device is well-suited for applications such as high power distributed power systems, battery management systems, low voltage battery-powered systems, and other applications that require precise control of high voltages and currents. The device integrates a synchronous buck converter, a synchronous boost converter, and other features to provide high stability and precise regulation of voltage and current in a small and simple design. The device is available in a Pb-free and RoHS compliant 16-pin 4mm × 4mm QFN package, and is designed to be highly efficient in operation.

The LTC3388IDD-3#TRPBF’s synchronous buck and boost converters are controlled using a fixed frequency voltage mode control scheme. This scheme uses a reference voltage to determine the switching frequency, and a pulse width modulation (PWM) signal to adjust the duty cycle of the switches. The PWM signal is generated by an internal oscillator. The operating frequency of the device is adjustable from 100kHz to 750kHz. At the output, the device includes integrated low-side MOSFETs to provide current limiting, as well as an over-temperature protection feature. In addition, the device includes two separate enable control pins for each of the buck and boost circuits.

The LTC3388IDD-3#TRPBF features a wide input voltage range of 4.5V to 28V, and can output up to 25V. The device can deliver up to 8A and very low output ripple. The output voltage can be adjusted via a single 0.8V reference pin, and tracking between the buck and boost outputs is adjustable via the Tracking Multiply pin on the device. The device is designed to have a very low input and output noise, and has low quiescent current requirements to ensure low power operation.

The LTC3388IDD-3#TRPBF is ideal for applications that require high reliability and accurate voltage and current regulation in a compact and efficient design. It is suitable for high power distributed power systems, battery management systems, and low voltage battery-powered systems. With its adjustable switching frequency and adjustable tracking voltage, the device is highly configurable for various applications and requirements.

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