HIP6302VCBZ-T

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The HIP6302VCBZ-T is a monolithic buck voltage regulator control module designed for pointing-of-load (POL) conversion applications. It operates over an input voltage range of 2.6V to 10V, and is ideal for use in telecom, networking and computer applications. The device features a spread spectrum frequency modulation scheme and enables systems to reduce peak-to-average power ratios and pass EMC tests. The HIP6302VCBZ-T integrates a high-speed low on-resistance, high efficiency synchronous rectifying MOSFET and allows for a wide range of single-phase, dual-phase and multi-phase buck regulator configurations.

The design and construction of the HIP6302VCBZ-T provide a quite powerful yet exceptionally flexible DC/DC control module with plenty of modern features, low power efficiency and no external components. It effectively reduces thermal resistance, allows for precise voltage regulation, and offers precise control of ON-Resistance of the lower MOSFET. Its advanced safety features further boost its flexibility and improve the system’s reliability. Equipped with precise protection circuitry to prevent over current, transistor short, thermal over load and UVLO.

The core of the HIP6302VCBZ-T is its voltage-mode constant on-time step-down switching controller. An internal oscillator causes the output of the control block to toggle between LOW and HIGH. When LOW, the lower MOSFET is turned ON, while when HIGH the upper MOSFET is turned ON. The output of the controller is compared to a reference voltage to determine how long the lower MOSFET is allowed to stay ON. The longer the MOSFET stays ON, the higher the output power.

The input voltage for the HIP6302VCBZ-T is divided down to an internal reference voltage and connected to the voltage input of the controller, where it is compared to the output voltage. The voltage error signal then goes to the peak current limit circuit which adjusts the peak current to prevent overloading. Next it is sent to the average current limit circuit and to the on-time generator where it sets the switching frequency and determines the time the Lower MOSFET is allowed to be ON.

An additional feature of the HIP6302VCBZ-T is its built-in protection circuit that guards against over-current, thermal shutdown, transistor short circuit, and under-voltage lock-out. It prevents irreversible damage to the device and ensures its proper functioning even in the case of severe overload. The upper and lower over voltage limit pins help protect the external components against overvoltage.

The HIP6302VCBZ-T is a powerful DC/DC controller that offers excellent control, performance and efficiency with minimal external components. Its protection and safety features are particularly valuable for a wide variety of applications and it is suitable for both buck and boost converter designs. It has a wide range of applications and is especially suitable for buck regulator designs in telecom, networking and computing applications.

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