ISL6530CBZ-T

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PMIC – Voltage Regulators – Special Purpose

ISL6530CBZ-T Application Field and Working Principle

The ISL6530CBZ-T is an integrated circuit from Intersil Corporation that is used as an auxiliary power supply from a +1.8V logic supply and provides up to 35A out at +2.5V to +3.3V output voltage. It is a PMIC (Power Management Integrated Circuit) designed to reduce the number of external components required to properly regulate the output voltage. This voltage regulator can be used to power many of today’s small form factor applications that require low current and low voltage regulating, such as logic-level converters and power supply regulation for kiosks, PCs, and servers.

ISL6530CBZ-T integrates two power stages and two gate drivers into a single package. The first stage is a Power FET (MOSFET), which is responsible for regulating the output voltage by supplying enough current to match the load. Additionally, a synchronous rectifier is built into the circuit, which allows for higher efficiency and eliminates the need for an external rectifier. The second stage is composed of a synchronous rectifier and a diode phase doubler with a PMOS gate driver at each output. This is used to increase the current from one source without adding complexity or cost.

The ISL6530CBZ-T has a high efficiency rating and low on-resistance that reduces power loss and helps to save energy. In addition, it features a built-in soft-start, which helps to optimize the power-up sequence, and a built-in active clamp circuit that provides overcurrent, overvoltage, and short circuit protection. It also has a ± 15kV Human Body Model (HBM) ESD rating, which is why it is often used in volatile applications that can be exposed to constant shock, vibration, and humidity.

Typical applications for the ISL6530CBZ-T include automotive, medical, and communications equipment, such as servers, test equipment, and I/O devices. It is also widely used in industrial applications, such as lighting fixtures, circuit boards, and LED drivers. These devices are especially beneficial in designs with tight space constraints because of their small form factor and high efficiency.

In conclusion, the ISL6530CBZ-T is an effective voltage regulator for many applications, and its features, such as its low on-resistance and high efficiency rating, make it an ideal choice for many applications that require low current and low voltage supplies. Its small size and built-in features also make this voltage regulator especially beneficial for designs with limited space.

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