LM2780TP/NOPB Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	-Vin
Base Part Number:	LM2780
Supplier Device Package:	8-µSMD (1.36x1.36)
Package / Case:	8-UFBGA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	12kHz
Current - Output:	50mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	1.8V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Negative
Function:	Ratiometric
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LM2780TP/NOPB Application Field and Working Principle

The LM2780TP/NOPB is a DC/DC switching regulator specifically designed for advanced applications in the field of power management and voltage regulation. It offers a wide range of features and functions to fit a variety of power management and voltage regulation requirements.The LM2780TP/NOPB offers a wide range of operating modes and functions that allow for precise control and efficient tracking of output voltage. Its dual-stage topology provides a high efficiency and low output ripple, and its built-in protections make it suitable for use in demanding applications. In addition, its low component count reduces cost and complexity of design.

Application Field

The LM2780TP/NOPB is a great IC for advanced power management and voltage regulation applications. It can be used to provide power to a variety of systems such as Small-form-factor PC systems, telecommunication equipment, data storage systems, process automation, and Smart Grid applications. Its configurable input and output voltage ranges, as well as its high efficiency, make it a great choice for any application that requires reliable, low-noise voltage regulation.

Working Principle

The LM2780TP/NOPB is a DC/DC switching regulator based on a dual-stage topology. The first stage is a buck converter, which generates a current that is then passed through a MOSFET switch. This switch is turned on and off in response to error voltage signals from the second stage of the regulator, which is a linear regulator. The linear regulator compares the output voltage to a reference voltage and adjusts the duty cycle of the MOSFET switch to maintain the output voltage at the desired level. This process of continuously monitoring and adjusting the output voltage is known as "closed-loop" compensation.The LM2780TP/NOPB also features protection circuitry, which helps to ensure that no damage is done to the IC or the load by voltage transients or sudden increases in temperature. It also has an adjustable soft-start circuit, which helps to prevent in-rush current at start-up and a programmable over-voltage protection circuit.The LM2780TP/NOPB is a versatile DC/DC switching regulator that offers a wide range of features and functions. It is ideal for power management and voltage regulation applications that require precise control and efficient tracking of output voltage. Its dual-stage topology allows for high efficiency and low output ripple, and its built-in protections make it suitable for use in demanding applications.

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