LM2663MX

Voltage - Output (Min/Fixed):	-Vin, 2Vin, Vin/2
Base Part Number:	LM2663
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	10kHz, 75kHz
Current - Output:	200mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction

The LM2663MX is a low-cost, synchronous, high-efficiency switching voltage regulator from Texas Instruments. It is widely used to regulate voltage in power supply and automotive applications. This article will discuss the application field and working principle of the LM2663MX.

Application Field

The LM2663MX is an integrated switching voltage regulator designed to provide voltage regulation, current regulation, and power conversion in a variety of applications. It is ideal for use in high-power applications such as computing, networking, and automotive applications. It can be used as a step-up DC/DC converter, a flyback DC/DC converter, and a synchronous rectifier for LED applications.In addition, the LM2663MX can be used as a voltage converter or a voltage regulator for applications such as servers, data centers, and other high-reliability systems. It is also suitable for mobile phones, tablets, and other mobile devices.

Working Principle

The LM2663MX is an integrated switching voltage regulator that uses the principles of switch-mode technology to regulate the output voltage of a power supply or other electrical system. It is a synchronous buck converter that uses a pair of PMOS and NMOS transistors to switch between supplying power and disconnecting the load.When the input voltage is greater than the output voltage, the converter switches the top switch on and the bottom switch off. This creates a voltage ramp across the inductor which is connected to the output voltage. The output voltage is controlled by varying the duty cycle of the switches.When the input voltage is lower than the output voltage, the converter switches the top switch off and the bottom switch on. This causes the current in the inductor to flow in reverse, creating a negative voltage ramp across the inductor which is connected to the output voltage. Again, the output voltage is controlled by varying the duty cycle of the switches.The LM2663MX has a few features that make it ideal for use in power supply and automotive applications. It has adjustable output voltage, current limit, and programmable switching frequency, as well as thermal and over-voltage protection. It is also highly efficient, with up to 95% efficiency at 12V, 1A output.

Conclusion

The LM2663MX is a low-cost, high-efficiency synchronous, switching voltage regulator from Texas Instruments. It is widely used to regulate voltage in power supply and automotive applications. The LM2663MX has a few features that make it ideal for these applications, such as adjustable output voltage, current limit, and programmable switching frequency, as well as thermal and over-voltage protection.

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