LM2852YMXA-0.8/NOPB

Voltage - Output (Min/Fixed):	0.8V
Base Part Number:	LM2852
Supplier Device Package:	14-HTSSOP
Package / Case:	14-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	500kHz
Current - Output:	2A
Voltage - Output (Max):	--
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.85V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tube

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LM2852YMXA-0.8/NOPB Application Field and Working Principle

DC/DC Converters are typically used to convert a higher voltage direct current (DC) into a lower voltage DC. This can be done using a variety of techniques, such as linear regulators, switched-mode power supplies, charge pumps, flyback converters, and more. Of these, switched-mode power supplies are the most common and, in particular, the LM2852YMXA-0.8/NOPB Series of DC/DC Switching Regulators offered by the Texas Instruments Corporation is one of the most versatile such converters available commercially. This article looks at the LM2852YMXA-0.8/NOPB switching regulator, its application field and working principle.

Application Field

The LM2852YMXA-0.8/NOPB is a step-down, synchronous, non-isolated buck switching regulator optimized for use as a point-of-load regulator and power supply for applications such as notebook computers, personal digital assistants (PDAs), and mobile handsets. This regulator is ideal for applications where a design requires high efficiency, output current up to 2A, low input voltage, level-shift capability, and integrated MOSFETs and bias current.The LM2852YMXA-0.8/NOPB features a high-efficiency and low-noise 300KHz switching frequency option. With the aid of integrated gate drivers, minimum dropout voltage, and an operating temperature range of -40°C to 85°C, this switching regulator is suitable for a wide variety of applications.

Working Principle

The LM2852YMXA-0.8/NOPB is a DC/DC switching regulator that works on the principle of switched-mode operation by utilizing an integrated, power MOSFET switch to regulate the output voltage.The control circuit of the LM2852YMXA-0.8/NOPB is designed to continuously monitor the output voltage. It adjusts the duty cycle of the switch in order to maintain a predetermined reference voltage set by a potentiometer. The power MOSFET switch is turned on and off rapidly, enabling a low, constant output voltage to be maintained despite a wide range of varying input voltage levels.In addition to the power MOSFET switch, the LM2852YMXA-0.8/NOPB features additional integrated features, such as a shutdown pin, noise attenuation capacitors, voltage transient suppression, and over-temperature protection.The LM2852YMXA-0.8/NOPB is notable for its low quiescent current, allowing it to be used in very low-power applications. It also features very low drop-out voltage, allowing the use of higher input voltages.The LM2852YMXA-0.8/NOPB DC/DC converter is recognized as one of the most versatile and cost-effective switched-mode power supplies available on the market. Its application field is wide-ranging, from notebook computers and PDAs to mobile handsets. Its integrated features make it highly advantageous for use in modern electronic designs.

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