ISL6328ACRZ-T

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The ISL6328ACRZ-T is a voltage regulator special purpose application, provided by Intersil Corporation, also known as Renesas Electronics. It is a high performance, low-power, two-terminal, adjustable, latest-generation synchronous buck controller in a small e-pad package. It is designed to provide load voltage regulation while allowing flexible configuration and being able to manage complex power-system topologies.

The ISL6328ACRZ-T features a 1.2A switch peak current capability in a tiny 4-pin e-pad package, excellent medical noise immunity, and programmable frequency. It also provides multiple feedback and current limit settings.

The ISL6328ACRZ-T works with both boost and buck converters and is particularly suitable for DDR memory applications which require low voltage and high precision regulation. Its output voltage can be adjust from 0.6V - 0.8V and it supports a wide input voltage range of 4.5V to 18V. It utilizes DPAK packaging and is capable of delivering up to 0.5A of load current.

Moreover, ISL6328ACRZ-T features integrated soft start, precision enable, thermal shut-down protection and an amplifier trimless gain adjustment pin. It also has an advanced control loop implementation which is further optimized for fast transient performance allowing the compensation to be optimized quickly with few external components.

The ISL6328ACRZ-T is designed to facilitate a low number of external components, which in turn eases design complexity and reduces solution size. It is equipped with a flexible synchronous logic level converter allowing the switching frequency to be precisely configured. This provides support for a wide range of frequencies from 50kHz to 1MHz.

ISL6328ACRZ-T provides power system designers with a cost-effective, highly integration solution for complex power system topologies. With its wide input voltage range, low power consumption and tight output voltage regulation, the ISL6328ACRZ-T offers an excellent performance advantage for space-constrained applications such as notebooks, tablet computers and smart phones.

When using the ISL6328ACRZ-T, the designer needs to be aware of the internal logic-level gate drive, which requires the switching MOSFET to be turned on during portions of the off time. The resulting gate charge should be appropriately managed to prevent a reverse bootstrap event causing positive voltage on the switching MOSFET drain relative to its source.

In conclusion, the ISL6328ACRZ-T is an excellent voltage regulator for a wide range of applications where high precision, low power consumption and small form factor are essential. Its advanced control loop implementations and wide input voltage range make it an ideal solution for space-constrained applications such as notebooks, tablet computers and smart phones.

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