IR3570AMIE07TRP

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The IR3570AMIE07TRP is a special purpose voltage regulator. It is designed to provide stable 10-A continuous output current in either 3.3 V or 5V output voltage configuration, while also providing the features of accurate current limiting, overvoltage protection and thermal shutdown functions. The extraordinary performance of IR3570AMIE07TRP is achieved due to its advanced process technology and unique internal design architectures.

IR3570AMIE07TRP is suitable for an array of applications including notebook computers, automated testing equipment, communications and networking solutions, digital home appliances and automotive systems. It is most commonly used to provide robust power solutions that permit reliable, low-cost power sequencing and sequencing with low noise, even in system environments with high noise and electromagnetic interference.

The working principle of the IR3570AMIE07TRP is based on the pulse width modulation (PWM) control regime. It uses a proprietary multifunction PWM method to provide the abundant features. The PWM generator runs in a continuous cycle consisting of five stages; pre-bias, initial bias, soft start, normal operation and shutdown. In each successive stage of the cycle, the cycle length is adjusted to match the required output voltage – due to the interaction between the feedback circuitry and the voltage reference input.

The IR3570AMIE07TRP has two low noise outputs and can support external load sense resistors for current sharing, or for paralleling two separate power supplies for higher current applications. During normal output regulation, due to the low noise control loop, this IC provides hundred of millivolts of stability and 5 mV of typical ripple in the output noise per kilo Hertz of bandwidth. Therefore, the IC gives the capability and system advantage in the modern age of technology.

The IR3570AMIE07TRP also provides short circuit protection and hiccup reset. Internal current sensing with temperature compensating analog circuitry will automatically shut down the output if the output current is limiting 10amps. If a short-circuit fault is detected, the device will enter the latching hiccup protection mode in order to prevent any excessive heating and damage. The over-temperature protection, designed to prevent any thermal runaway, will tri-state the output if the device temperature exceeds its limit.

The IR3570AMIE07TRP is a versatile, high-performance and world-class voltage regulator. Its unique switching control regime enables the output stage to mimic a current source or current sink as opposed to a voltage source application. It also provides high stability, fast transient response, independent positive and negative outputs, internal soft start and excellent overvoltage protection. All these features allow the IR3570AMIE07TRP to become the most desirable choice for the power oriented applications.

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