ICL7660ESA

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ICL7660ESA Application Field and Working Principle

Integrated Circuit (IC) ICL7660ESA belongs to the family of DC-DC switching regulators, also known as PMIC (Power Management Integrated Circuit) voltage regulators. It provides an adjustable output voltage range of 0.6V to 9V from a single battery source. This voltage regulator can also be used in different power-supply configurations including step down, step-up and inverting.

The ICL7660ESA is a CMOS integrated circuit optimized for battery-operated applications such as portable radios, remote controls, and computers that require small, low-cost DC-DC voltage converters. This device is designed to draw very low quiescent current, compared with conventional transformers. It also provides very low switching noise due to its powerful internal FET switches.

The ICL7660ESA has two configurations: step-up and step-down. It can provide a 0.6 V to 9V output voltage which makes it ideal for portable electronics applications. With a wide input range of 2V to 12V, it can be used in different types of batteries such as alkaline, NiCd and NiMH.

The ICL7660ESA has two operating modes: manual and auto-mode. In manual mode, the output voltage is set by adjusting the reference voltage. In auto-mode, the output voltage is automatically adjusted by sensing the input voltage level. It has a wide duty cycle range of 2% to 100%.

The ICL7660ESA is designed to maintain a high output voltage regulation accuracy. It uses an advanced current-mode control design to ensure fast transient response, low output voltage ripple and very low noise. It also features an internal frequency compensation for easy design. The device can be also used in buck-boost applications.

The ICL7660ESA has an integrated MOSFET switch for high efficiency. The device can deliver up to 4A output current and provides an adjustable output current limit. The device also provides an adjustable soft-start time to reduce input inrush current and to ensure low start-up power dissipation.

The ICL7660ESA provides protection features including adjustable current limit and thermal shutdown. The device also has a power good output signal to indicate when the output voltage is correct. The device can be also shutdown via a shutdown pin to save power.

ICL7660ESA is a highly optimized voltage regulator and it is suitable for a wide range of applications. It is a versatile, low cost and low noise power solution for battery-operated portable devices. The device can deliver up to 4A output current and is designed to maintain high voltage regulation accuracy. With its wide range of adjustable parameters, it is easy to use and program for different applications.

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