ICL7660CSA+T

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The ICL7660CSA+T is a single CMOS charge pump IC that can generate an output voltage that is the inverse of the input voltage, allowing it to play an important role in portable applications. This IC can be useful in power management applications due to its minimal power requirements, as well as its high current output that can be used to drive high-side or low-side switches.

The ICL7660CSA+T belongs to the family of PMIC, Voltage Regulators and DC DC Switching Regulators. It is designed primarily for the applications of portable products, such as mobile phones, digital cameras, and PDAs. This IC utilizes the charge-pump algorithm of power transformation, allowing it to operate with low power supply voltage and deliver high output voltage. It is also capable of working with any input voltage, ranging from 1.2V to 5.5V, while the output voltage range is 0.3V to 5V.

In contrast to traditional linear adjustable regulator, the ICL7660CSA+T operates without an inductor, which saves considerable space and simplifies control circuitry. Moreover, the switching frequency is designed to adapt the needs of various input voltage, which are determined by measuring the input voltage and adjusting the clock pulses accordingly. This type of efficient switching regulator operates by bringing the input voltage in and out of the device multiple times in order to create a manufacturing output voltage.

Moreover, the ICL7660CSA+T also feature various protections, such as output current limit, over temperature protection and shorted switch protection. It has an adjustable switching frequency from 150 kHz to 1.2 MHz, allowing users to select the appropriate speed needed based on their application. The device also provides an option to introduce additional gain by increasing the clock input voltage.

The ICL7660CSA+T features maximum power output of 25 mW, 10% overshoot and ripple, 1% accuracy and a maximum output current of 790 mA. The switching regulator runs on a supply voltage ranging from 1.2V to 5.5V, with a quiescent current of only 6.9 μA@3.3V and a switch-on time of 20 μs@3.3V. Furthermore, it is available in three package options: SOT23-5, LLP-5 and SOIC-8L.

The ICL7660CSA+T IC is ideally suited for applications such as mobile phones, digital cameras, PDAs, and various portable electronic devices that require minimal power consumption. In these applications, input power sources such as batteries may not always be available and therefore a low power solution is essential. This particular IC allows designers to optimize the amount of power consumed, while also providing a regulated output voltage of up to 5V.

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