LX1882-00CDU

Voltage - Output (Min/Fixed):	2.5V
Base Part Number:	LX1882
Supplier Device Package:	8-MSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	550kHz
Current - Output:	50mA
Voltage - Output (Max):	5.5V
Series:	--
Voltage - Input (Max):	4.4V
Voltage - Input (Min):	1.8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Charge Pump
Output Configuration:	Positive
Function:	Step-Up/Step-Down
Part Status:	Obsolete
Packaging:	--

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LX1882-00CDU DC DC Switching Regulators

The LX1882-00CDU is a switchmode DC−DC regulator designed for high efficiency and cost effective power supply applications. It is a DC-DC buck converter featuring a wide input voltage range, high conversion efficiency, low consumed power and low noise output. This regulator operates with a switching frequency of up to 5MHz, allowing tiny external components size and simplifying board layout.

Features

The LX1882-00CDU is integrated several features that help protect its stability. It comes with an adjustable operating frequency, over current protection, under voltage protection and over voltage protection. Output voltage is adjustable within a 2.5V-26V range and a maximum output current of 30A. It also comes with an integrated reverse-protection and guarantee a high frequency noise immunity.

Application Fields

The LX1882-00CDU is suitable for a wide variety of applications, such as automotive, battery-powered devices, industrial, communications, and consumer electronics. This device can be used to convert an unregulated DC voltage from a power source such as an AC adapter, a battery, or a solar cell into an adjustable constant DC voltage, for example for the purpose of powering electronic circuits that require a specific voltage for its operation.

Working Principle

In its basic configuration, the LX1882-00CDU DC-DC buck converter is composed of two main sections: a switch-mode supply (SMPS) and an error amplifier. The SMPS section consists of an inductor connected between the input voltage and the output voltage, a capacitor placed at the output stage to filter the ripples of the converted voltage, and a switching power transistor connected between the inductor and the ground.The error amplifier adjusts the duty cycle of the power transistor and thus the amount of energy provided to the output stage to maintain the output voltage at a predetermined level. This device is a current-mode regulator and its operating modes have been carefully selected to achieve the highest conversion efficiency while having a small form factor and low component count.

Conclusion

The LX1882-00CDU is an advanced DC-DC buck regulator, which provides excellent efficiency and cost effectiveness for power supply applications. Thanks to its adjustable switching frequency, reverse-protection, over current and voltage protection, high frequency noise immunity and the wide input voltage range, this regulator is suitable for a variety of applications, from consumer electronics to automotive and industrial applications. Its current-mode control provides a high degree of control and stability, making this converter an ideal choice for many demanding power supply applications.

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