IR3500AMTRPBF

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IR3500AMTRPBF Application Field and Working Principle

Power Management Integrated Circuit (PMIC)s are a class of integrated circuits that are used to manage the power of an electrical device. Specialized PMICs are designed to meet specific application needs. One such example is the IR3500AMTRPBF Power Management Integrated Circuit (PMIC). This device combines an adjustable DC-DC converter, Linear Regulator, Low Voltage Detection and other features, offering a single-chip solution for power-sensitive applications.

The IR3500AMTRPBF is a 6W Multi-Phase DC-DC Buck Regulator with 4 Integrated MOSFETs. It comes in an 8-Pin thermally enhanced MSOP package and is AEC-Q100 qualified. The device is an integrated solution for voltage step down or voltage scaling applications. It operates in Burst Mode, a heartbeat pulse width modulation (PWM) technique that conserves power during light loads to improve efficiency. Its adjustable output voltage range is 0.85v to 3.5v and it supports up to 6A output current.

The IR3500AMTRPBF features a programmable soft-start, cycle-by-cycle current limit and instant on/off control. It also has a low quiescent current that drops lower than 100 µA under no load conditions. In addition, it is capable of automatically entering into a low-current sleep mode when the output voltage drops below a threshold voltage level. This feature improves power efficiency by maximising the battery life of the connected device.

The IR3500AMTRPBF is designed for power-sensitive applications such as medical electronics, portable communication devices, small consumer electronic products and wearable devices. It can also be used in automotive systems where the power regulation requirement is low.

The IR3500AMTRPBF works on the principle of Pulse Width Modulation (PWM) for controlling the output voltage. The incoming DC voltage is switched on and off rapidly at a fixed rate. This produces a modulated signal whose average voltage and current are proportional to the duty cycle. If the output voltage and current of the IC is to be regulated, the duty cycle of the PWM signal is varied by an internal control circuit.

In addition to the PWM control loop, the device also has a feedback current loop, a soft start circuit, adjustable over temperature and over load protection, short circuit protection and other features. All the features are designed to maintain the output voltage and current within the specified limits.

In summary, the IR3500AMTRPBF integrated circuit is designed to give an efficient, cost-effective solution for step down or voltage scaling applications. It is a multi-phase buck regulator device that comes in an 8-Pin thermally enhanced MSOP package. The device works on the principle of Pulse Width Modulation (PWM) and is capable of handling up to 6A current. The device is suited for power-sensitive applications such as medical electronics, communication devices and consumer electronics.

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