ISL6439CB-T

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ISL6439CB-T is a step-down high frequency switching regulator controller with integrated charge pump. It is classified under PMIC - Voltage Regulators - DC DC Switching Controllers. Because of its low power consumption, it is widely used in a variety of portable applications.

The ISL6439CB-T has an output over-current protection circuit and discrete peak current-mode control architecture with an adjustable switching frequency range up to 1.2MHz. It also incorporates a low voltage dropout linear regulator, temperature-compensated accuracy and a switchingmode controller.

The ISL6439CB-T step-down high frequency switching regulator controller is a single-chip DC-DC converter. The input voltage is directly adjustable between 1.2 V and 3.3V. The wide input voltage range and adjustable output voltage allow the use of the device in a variety of applications, including but not limited to mobile phones, digital cameras, PDAs, engineering systems, and various rechargeable batteries.

The ISL6439CB-T works by adjusting the voltage of the input voltage level to the level desired at the output side. The high frequency switching control circuit takes the input voltage, converts it into a controlled output voltage with adjustable high frequency pulses. This switching frequency can be adjusted to mitigate voltage drops. The low power consumption by using the low voltage dropout linear regulator further enables efficient power management in the device.

The DC-DC converter then uses its peak current-mode control architecture to optimize the output current level and switching frequency for each load condition. The device also has an integrated programmable soft-start function that limits the output inrush current and allows reliable start-up of the system.

Due to its integrated charge pump, the ISL6439CB-T is suitable for a wide range of portables applications as it is low power consumption. The high frequency switching control also allows the device to produce smaller and lighter components, reducing the overall cost of production. In addition, the device has low voltage dropout, temperature-compensated accuracy and reliable start-up and system protection.

In conclusion, the ISL6439CB-T is a versatile and powerful step-down high frequency switching regulator controller that can be used for a variety of portable applications. It is classified under PMIC - Voltage Regulators - DC DC Switching Controllers due to its efficient power management, temperature-compensated accuracy, low voltage dropout and programmable soft-start function.

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