ISL78235ARZ-T

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The ISL78235ARZ-T device is a PWM buck-boost synchronous switching regulator, or DC/DC converter, that operates as either a step-down (buck) or step-up (boost) regulator, and is designed to deliver up to 3A of output current. This device is geared toward a wide variety of applications, ranging from smart phones and tablets, to mid- to low-power embedded systems and USB/Wireless charging solutions. The ISL78235ARZ-T is stable with an input voltage range of 3.2V to 20V, allowing it to operate in configurations with input voltages both higher than and lower than the regulated output voltage. Its integrated FETs are rated to switch up to 25V, further extending the range of possible applications.

The device is represented by a pulse-width modulation (PWM) control architecture, which provides improved system efficiency and dynamic response compared with traditional DC/DC linear regulators. This design enables power savings by allowing the output current to be automatically adjusted to the desired level with minimal power dissipation. The PWM-controlled buck-boost architecture also provides improved load regulation and line regulation over a wide load range and a low output noise.

Furthermore, additional features included in the design of the ISL78235ARZ-T make it an attractive option for a wide range of applications. In buck-boost operation, the output voltage can be adjusted using a single resistor, and is set using an external voltage reference. This offers flexibility and eliminates the need for additional components. Additionally, a built-in switching frequency of 1.2MHz provides improved performance with space-constrained applications.

The ISL78235ARZ-T also incorporates a variety of protection features to ensure robust operation and reliable protection of the system and its components. This includes internal short circuit protection, over-current and over-temperature protection, and protection against negative voltage or reverse current flow. This makes it an ideal choice for applications where power delivery is critical.

The ISL78235ARZ-T is a versatile and efficient synchronous buck-boost switching regulator, providing many advantages over traditional linear regulators. Its wide range of integrated features, including adjustable output voltage and frequency, along with additional protection circuitry, makes it an effective and reliable solution for a wide variety of applications.

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