IR3082AMTRPBF

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IR3082AMTRPBF is a single-phase, multiport, integrated current-mode PWM controller with integrated MOSFETs and an Auto Sub-Mode transition feature.

This device is well-suited for a variety of DC/DC applications such as automotive 12 to 24V intermediate bus applications, 12 to 48V dc link, 48 to 12V mid-voltage bus and 24 to 24V auxiliary bus applications.

The IR3082AMTRPBF is an advanced integrated pulse-width modulation (PWM) controller with integrated MOSFETs and an Auto Sub-Mode transition feature which allows dynamic control of inductor current at light-load to reduce ripple and quiescent current.

The IR3082AMTRPBF features Peak Current Mode Control (PCMC) and input voltage feed-forward to maintain a stable loop response, a wide input voltage range of 4.5 to 24V, adjustable output voltage of 0.75 to 24V, and an optional auto-sub mode transition, which allows for optimal efficiency at light loads by automatically transitioning to Burst Mode operation.

The IR3082AMTRPBF also includes accurate voltage regulation through its unique voltage tracking pin, On-Time Boost, short circuit protection, enable input, and output over-voltage protection.

The IR3082AMTRPBF is well-suited for a variety of DC/DC applications such as point-of-load, automotive 12 to 24V intermediate bus applications, 12 to 48V dc link, 48 to 12V mid-voltage bus and 24 to 24V auxiliary bus applications.

Application Field and Working Principle

The IR3082AMTRPBF is well suited for a variety of DC/DC applications such as automotive 12 to 24V intermediate bus applications, 12 to 48V dc link, 48 to 12V mid-voltage bus and 24 to 24V auxiliary bus applications. This device provides accurate voltage regulation and is capable of high-efficiency operation up to 94.2%.

The IR3082AMTRPBF works using a two-stage pulse-width modulation (PWM) technique. During normal operation, the device operates in buck mode, producing a fixed output voltage with high efficiency. During light-load conditions, the device transitions to Burst Mode operation to reduce quiescent current and ripple. This allows for improved system efficiency when compared to other controllers.

The IR3082AMTRPBF also includes a voltage tracking pin, which can be used to adjust the output voltage. This allows for fine tuning of the output voltage, making it ideal for accurately regulating sensitive electronic systems.

The IR3082AMTRPBF also features a wide range of safety features, including input under-voltage lockout (UVLO) and output soft-start. These features help to protect the device and improve system reliability while providing adjustable levels of start-up compensation.

Overall, the IR3082AMTRPBF is a highly integrated PWM controller that can provide accurate voltage regulation, high efficiency, and various safety features to a wide range of DC/DC applications.

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