LM2750LDX-5.0/NOPB Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	5V
Base Part Number:	LM2750
Supplier Device Package:	10-WSON (3x3)
Package / Case:	10-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	1.7MHz
Current - Output:	120mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.6V
Voltage - Input (Min):	2.7V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LM2750LDX-5.0/NOPB Application Field and Working Principle

LM2750LDX-5.0/NOPB is a voltage-controlled switching regulator from Texas Instruments and falls under the classification of PMIC - Voltage Regulators - DC DC Switching Regulators. It is a low-voltage, low-power regulator for applications that need an efficient and reliable solution for low-voltage applications. To achieve this, the LM2750LDX-5.0/NOPB utilizes an integrated buck converter with efficient switch modes.The pin configuration of the LM2750LDX-5.0/NOPB consists of the power stage, control stage and the enable pin. The power stage consists of the input voltage, ground and output voltage pins. The enable pin allows the user to enable or disable the regulator. The enable pin is equipped with an internal pull-down resistor and can be used to enable or disable the regulator with a logic low and logic high input respectively.The control stage of the regulator is also composed of three pins – the voltage sense pin, the feedback pin and the voltage reference pin. The voltage sense pin senses the input voltage and the feedback pin provides feedback to the regulator to ensure that the output voltage remains stable. The voltage reference pin provides the reference voltage used to adjust the output voltage. The LM2750LDX-5.0/NOPB offers an adjustable output current limit that limits the current that is drawn from the input voltage. It also provides protection features such as soft-start, thermal shutdown, and short-circuit protection. The soft-start feature prevents inrush current from damaging the load when power is applied, while the thermal shutdown feature protects the device from over-temperature conditions. The short-circuit protection feature protects the device from a direct short between the input and output.The LM2750LDX-5.0/NOPB is a highly flexible and adaptable switching regulator, making it an ideal solution for a wide variety of applications. Some of its applications include: portable electronic devices and LED light sources, battery-powered electronic systems, power supplies, and much more. Its working principle is based on switch-mode component and a voltage-controlled oscillator (VCO). The VCO continuously switches the internal power switch on and off, controlling the output voltage of the regulator. The switch-mode component of the LM2750LDX-5.0/NOPB is composed of an inductor, a capacitor, a switching transistor, and a diode. The inductor stores energy and produces an output voltage, the diode prevents the inductor from discharging the stored energy, the switching transistor is responsible for switching the load current and the capacitor smoothes the output voltage.The speed of the switching transistor is controlled by the VCO, which enables the regulator to achieve greater efficiency. The output voltage is regulated by comparing the voltage feedback signal from the output voltage feedback pin with the voltage reference from the voltage reference pin. When the feedback pin voltage exceeds the reference pin voltage, the output voltage is reduced and conversely, the output voltage is increased when the feedback pin voltage falls below the reference pin voltage.In conclusion, the LM2750LDX-5.0/NOPB is an efficient, reliable and highly flexible voltage regulated switching regulator that falls under the classification of PMIC - Voltage Regulators - DC DC Switching Regulators. It offers adjustable output current limit, soft-start, thermal shutdown and short-circuit protection features. Its working principle is based on switch-mode component and a voltage-controlled oscillator (VCO). The LM2750LDX-5.0/NOPB is suitable for a wide variety of applications including portable electronic devices, LED light sources, battery-powered electronic systems, power supplies, etc.

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