LT3970IMS-3.3#PBF

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The LT3970IMS-3.3#PBF is a high-efficiency, low-voltage, DC-DC Switching Regulator solution recommended for performance-critical applications. The device offers integrated switching diode protection, adjustable output supervision and a wide range of operation parameters. It is an inexpensive, space-efficient, efficient solution for DC-DC switching applications that require a combination of current, voltage and output ripple control.

The LT3970IMS-3.3#PBF operates in Step-Down, Step-Up, Inverting and SEPIC topologies, and provides up to 2A of continuous output current. It features a power supply range from 4.75V to 32V, requires no external compensation and is foldback current limited for overload protection. The output voltage can be adjusted from 0.8V to 24V with 0.5% accuracy, and it has excellent transient response characteristics with output voltage settling time of 600ns.

The LT3970IMS-3.3#PBF is usually used for low-noise, low-power applications such as computing, communication and instrumentation, which require tight output voltage regulation in an environment where multiple current and voltage loads exist. It is also suitable for battery-powered applications or those requiring low ripple and noise. Typical applications include medical systems, point-of-load regulation, voltage doubling, and low-dropout regulators.

The LT3970IMS-3.3#PBF includes several features to ensure reliability and prevent damage. It is equipped with under voltage, over voltage and over temperature protections, as well as a number of input/output shutdown modes, which will protect the device against potential faults in the external circuit.

The LT3970IMS-3.3#PBF features programmable soft-start and a low-angle current limit to minimize output voltage overshoot and transient ripple at start-up. Soft-stop and brownout circuitry further protect the device from an undesirable operating condition such as output short-circuit and input power failure. Additionally, proprietary total power management control logic optimizes efficiency over the full load range.

The LT3970IMS-3.3#PBF has a low-power sleep mode, which can be used for greatly reducing the device’s quiescent current, allowing it to be used in portable or battery-powered applications. It also includes an ultra-low-ripple Pulse-Width Modulated (PWM) mode and a low-noise, low-ripple Pulse Frequency Modulated (PFM) mode to further improve efficiency and reduce noise.

The LT3970IMS-3.3#PBF includes two control input pins to control its operation. One is a logic-level control pin, which enables/disables the device. The other is an analog voltage control pin, which adjusts the output voltage. The device is compatible with a variety of different control signals, allowing for versatile design applications.

In summary, the LT3970IMS-3.3#PBF is an excellent DC-DC switching regulator solution for system designers looking for tight output voltage regulation and superior performance in a space-efficient package. Its adjustable output voltage and current limit, programmable soft start/stop and brownout protection, and low-power sleep mode make this device suitable for a variety of applications.

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