ICL7660AIBAZA-T

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ICL7660AIBAZA-T application field and working principle

The ICL7660AIBAZA-T is a highly efficient, low-power differential DC-DC switch mode (SMPS) voltage regulator. It is part of the ICL7660 series of voltage regulators from Intersil Corporation and is classified as a PMIC (Power Management IC) specifically as a DC-DC switching regulator.

The ICL7660AIBAZA-T\'s primary use case is to convert a source voltage into multiple higher or lower output voltages. It can provide a maximum output current of up to 25mA, though in normal operation conditions the maximum load current should be approximately 10mA. This voltage regulator can also be used to provide a constant current source, which is especially useful in applications that require the devices to be powered at constant current levels, such as in communication devices.

In terms of advantages, the ICL7660AIBAZA-T has low power consumption, typically around 6.0mW under normal operation and as low as 2.5mW during standby. It also has an ultra-low quiescent current of only 5µA, making it very power efficient. Additionally, it offers an operating temperature range of -40°C to +85°C.

Application Fields

The ICL7660AIBAZA-T is primarily used for the following applications:

• Cellular phones
• Wireless devices
• Low-power digital circuits
• Portable devices
• Battery-powered equipment
• Medical devices
• Industrial equipment

Working Principle

The ICL7660AIBAZA-T uses a switching regulator topology to convert a source voltage into multiplle higher or lower output voltages. The regulator uses an internal \'pulse-width modulator\' (PWM) to switch the output voltage between a high state and a low state. A feedback loop is used to keep the output voltage at a desired level. The high and low side controllers on the input and output of the switch detect the PWM signals and keep the voltage on a continuously high level even as the input voltage or load conditions change.

The ICL7660AIBAZA-T also features an over-voltage protection circuit, which prevents the output voltage from exceeding a certain level in order to protect the device from damage caused by external conditions, such as when a higher voltage than expected is applied.

The regulator is operable in either a buck (step-down) mode or a boost (step-up) mode, and supports synchronous switching, which helps to reduce power losses. This makes the ICL7660AIBAZA-T especially suitable for systems that require reliable low power operation while using high input voltages.

Conclusion

The ICL7660AIBAZA-T is a highly efficient and cost-effective DC-DC switching voltage regulator designed for portable devices, battery-powered equipment and other low-power, power-sensitive applications. Featuring adjustable voltage outputs, an operating temperature range of -40°C to +85°C, a maximum output current of 25mA, and an ultra-low quiescent current of only 5µA, it is a highly reliable and versatile voltage regulator.

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