ISL6308CRZ

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ISL6308CRZ is a special purpose PMIC voltage regulator device distinctive for its low quiescent current and precision powering. The device consists of one low-dropout linear regulator, a dual linear/PWM regulator and a high-efficiency buck regulator. It is well suited for a variety of applications, including processor voltage regulation on computer motherboards, tablets, cellular phones and other peripheral devices.

ISL6308CRZ offers an ultra-low ground current during the quiescent break-even point, providing improved power efficiency and longer battery life to its host. Its dual linear/PWM regulator operates from a variable input voltage, such as a battery, and offers a single output voltage with a programmable power range of 5V to 25V. This pin-configurable feature allows for custom power designs with flexible component selection and configuration.

The ISL6308CRZ device also incorporates a high-efficiency buck regulator as well as two additional low-dropout linear regulators. Its buck regulator includes an integrated peak current limit and requires no external compensation components. Its wide input voltage range (2.9V to 5.5V) and its wide output voltage range (0.76V to 5V) suit it for a variety of general purpose and special purpose applications. Its low power consumption and high power efficiency make it ideal for applications requiring long run times and powered by batteries.

The ISL6308CRZ’s three LDO regulators feature a wide input voltage range (2.5V to 5.5V) and a joined output voltage range of 0.9V to 5V. Each LDO can be independently powered from one input supply or from two different input supplies, providing the flexibility to design multiple power buses on a single board. The LDOs feature an adjustable current limit and an overload detect circuit, which provides error protection in the event of a short circuit on the output.

The working principle of the ISL6308CRZ device is quite simple. When an input power supply of a particular voltage (2.9V to 5.5V) is connected, the high-efficiency buck regulator is enabled and the input power is converted into desired output voltage. During this process, the ripple effect is eliminated and the output is stabilized. The four regulators are also enabled in this process and the output voltage, current and power of the system is monitored for consistent regulation.

The dual linear/PWM regulator also works in tandem with the buck regulator in order to provide the precision and stability needed for critical applications. During operation, the linear/PWM regulator sources the current as well as monitors the output voltage. This regulator is also responsible for stability and ripple reduction of the output. Finally, the four LDO regulators are enabled and power is delivered to the output devices.

In summary, ISL6308CRZ is a special purpose PMIC voltage regulator device suitable for a variety of applications such as processor voltage regulation, batteries and general purpose applications. Its ultra-low ground current, wide input voltage range, wide output voltage range and adjustable current limit feature makes it ideal for a variety of applications. Additionally, its integrated peak current limit and overload detect circuit ensure reliable regulation in the event of a short circuit on the output. Finally, the high-efficiency buck regulator, the dual linear/PWM regulator and the four LDOs are enabled simultaneously in order to make sure that the system is constantly regulated.

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