LX1662ACN

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Applications:	Controller, Intel Pentium® II
Voltage - Input:	10.8 V ~ 13.2 V
Number of Outputs:	1
Voltage - Output:	1.8 V ~ 2.8 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Through Hole
Package / Case:	14-DIP
Supplier Device Package:	14-DIP
Base Part Number:	LX1662

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LX1662ACN Application Field and Working Principle

The LX1662ACN is a high-performance switching regulator Power Management Integrated Circuit (PMIC). This particular chip from the LX1662 series is designed for a variety of special-purpose voltage regulation applications that can operate over a wide input voltage range. It features reliable performance and precision voltage control accuracy. It is suitable for a variety of automotive and consumer electronics applications. This article explains the various features and operating principles of this chip and how it can be used in a number of different applications.

Features and Specifications

The LX1662ACN is capable of regulating output voltages between 0.5 and 5.5V, making it suitable for a variety of applications. It can operate with input voltages ranging between 4.5V and 40V and is capable of delivering up to 1A of current. The chip has an internal digital PWM control architecture that helps to regulate the output voltage accurately. The digital feedback control loop has an integrated adjustable over-voltage protection that helps to ensure the safe operation of the device. The output capacitor can be configured to provide a soft-start capability, which helps to reduce the in-rush current at startup and minimize the power consumption of the device.In addition to its power management features, the LX1662ACN has a rich set of protection features. It features a thermal protection circuit that shuts down the output if the device\'s temperature exceeds a certain limit. This helps to protect the device from damage due to excessive temperatures. The chip also includes a short-circuit protection circuit that helps to protect the device from short-circuiting and overloading.

Operating Principle

The LX1662ACN is a switching regulator PMIC. It works by controlling the switching of a power transistor between the input voltage and an output voltage. When the power transistor is switched on, it draws current from the input voltage and stores it in an output capacitor. When the power transistor is switched off, the stored energy is transferred to the output voltage. This process is repeated at high frequencies and helps to regulate the output voltage accurately.The chip includes an internal digital PWM control loop that continuously monitors the output voltage and makes adjustments to the power transistor switching frequency based on the measured value. This helps to keep the output voltage within a certain tolerance range. The digital feedback control also includes an adjustable over-voltage protection, which helps to prevent the output voltage from exceeding a certain value.

Applications

The LX1662ACN is suitable for a variety of automotive and consumer electronics applications. It can be used in automotive systems such as lighting, infotainment, driver assistance, and climate control. In consumer electronics, it can be used in portable devices such as laptops, tablets, RF-enabled devices, set-top boxes, and more. It is also applicable in industrial applications such as motor control and machine monitoring.

Conclusion

The LX1662ACN is a high-performance switching regulator power management integrated circuit. It offers reliable performance and precision voltage control accuracy, enabling it to be used in a variety of special purpose applications. It is suitable for a variety of automotive and consumer electronics applications, as well as industrial applications such as motor control and machine monitoring.

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