LM2853MHX-1.5

Voltage - Output (Min/Fixed):	1.5V
Base Part Number:	LM2853
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:	550kHz
Current - Output:	3A
Voltage - Output (Max):	--
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	3V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The LM2853MHX-1.5 is a voltage regulator designed for low-power applications. It is a DC to DC converter that provides a stable DC voltage output, based on its input voltage. The power output of the regulator can be easily adjusted with a small, discreet adjustment knob.

Application Field

The most popular applications of the LM2853MHX-1.5 range from supplying power to small electronics such as watches, calculators, and alarm clocks, to providing a steady power source for cell phones and digital cameras. Additionally, its small footprint and ease of setup make it suitable for embedded systems such as small sensors and automation circuitry.

Design Features

Some of the features that make the LM2853MHX-1.5 a perfect choice for smaller electronics include the following:• Low Current Draw: The regulator draws very little current which makes it a good choice for battery operated electronics.• Programmable Output Voltage: The output voltage can be adjusted by as much as 1.5V using the discreet adjustment knob. This allows it to be used in a wide range of applications.• Low Voltage Startup: The regulator can start up at voltages as low as 0.7V, making it suitable for applications with low power sources.• Automatic Transient Voltage Suppression: The protection circuit built into the regulator helps protect it against voltage spikes, ensuring that it remains reliable over time.

Working Principle

The LM2853MHX-1.5 works by converting the input voltage into a voltage suitable for powering a load. It does this by using a switch-mode topology. A switch is used to convert the input voltage into a constant output voltage. The switch is controlled by a feedback circuit, which ensures that the output voltage remains relatively constant despite changes in the input voltage or load demand.The regulator also incorporates a protection circuit which keeps it from drawing too much current, as well as providing transient voltage suppression to protect it from voltage spikes. This helps ensure that the regulator remains reliable over time.

Conclusion

The LM2853MHX-1.5 is an ideal solution for low-power applications such as watches, calculators, alarm clocks, and small sensors. It is easy to set up, has a small footprint, and can supply reliable, adjustable power to a wide range of loads. Its protection circuit and transient suppression features help keep it reliable over time, making it a great choice for efficient, reliable power.

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