LM2612ABP Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	1.05V, 1.3V, 1.5V, 1.8V
Base Part Number:	LM2612
Supplier Device Package:	10-µSMD (2x2.5)
Package / Case:	10-VFBGA
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	600kHz
Current - Output:	400mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.8V
Number of Outputs:	1
Output Type:	Programmable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LM2612ABP Application Field and Working Principle

The LM2612ABP is a high performance dc-dc switching regulator designed for a wide range of applications. It is an improved alternative to the previous generation LM2612A, providing improved efficiencies, increased power capabilities, and superior control for more demanding applications.The main applications of the LM2612ABP include dc-dc power converters, voltage regulators, and other distributed power systems. It is especially suitable for automotive electronics, computers, communication, and consumer electronics.The LM2612ABP features a built-in current sense amplifiers, input and output transition control pins, a constant on-time control loop, and dual output phases. Additional features include adjustable switching frequency up to 1.5MHz and synchronization with external clock sources. Operating temperature range is from -40°C to +125°C.The LM2612ABP is an integrated circuits for voltage regulation, providing higher power capabilities than previous designs. It works on a switching principle and uses pulse width modulation to regulate the output voltage. This is accomplished by controlling the switching frequency and duty cycle of the output switches.When the output voltage reaches the desired value, the current sense amplifiers measure the voltage drop across the output switches and adjust the duty cycle of these switches. If the output voltage rises too much, the duty cycle of the switches is adjusted downwards to reduce the voltage. Similarly, to raise the voltage, the switches\' duty cycle is increased.The current sense amplifiers work in conjunction with the input and output transition control pins to provide additional control. The transition control pins allow the user to fine-tune the transition time between Buck and Boost modes. This allows the regulator to minimize glitches and improve switching efficiency.Finally, the constant on-time control loop ensures that the duty cycle is maintained at a constant level. The constant on-time control also helps preserve the system power density and allows the LM2612ABP to achieve higher output current levels.Overall, the LM2612ABP is an improved alternative to the previous LM2612A, providing better performance in applications requiring higher power densities and higher efficiencies. It is ideal for a wide range of applications, including automotive, communication, computer, and consumer electronics.

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