LM2670SD-ADJ/NOPB

Voltage - Output (Min/Fixed):	1.2V
Base Part Number:	LM2670
Supplier Device Package:	14-VSON (5x6)
Package / Case:	14-VDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	260kHz
Current - Output:	3A
Voltage - Output (Max):	37V
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	40V
Voltage - Input (Min):	8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction of LM2670SD-ADJ/NOPB

The LM2670SD-ADJ/NOPB is a switching regulator developed by Texas Instruments. This switching regulator has a wide range of applications, from consumer and industrial electronics to communication and medical systems. The chip has a maximum output power of 20W and maximum output current of 2A. It operates from an input voltage range of 5V to 24V. The LM2670SD-ADJ/NOPB includes a high efficiency Pulse Frequency Modulation (PFM) mode and fixed frequency Pulse width Modulation (PWM) mode. It is optimized to offer high efficiency with low EMI. The chip features soft-start and current limit protection, thermal shutdown protection, and two independent output voltage options.

Application Field

The LM2670SD-ADJ/NOPB is an advanced switch mode power supply (SMPS) chip designed for a wide range of applications, including consumer, industrial and medical systems. The device is used to convert a DC power supply to a lower voltage level and keep it regulated, stable and consistent.The LM2670SD-ADJ/NOPB is used in a wide range of products including audio amplifiers, digital displays, computers and laptops, and wireless telecommunications equipment. It is also widely used as a power supply regulator for Linear Voltage Regulators.The LM2670SD-ADJ/NOPB is an excellent choice for the design and implementation of high power, reliable and efficient power supply solutions in the cited application areas.

Working Principle

The LM2670SD-ADJ/NOPB is a non-isolated, fixed frequency buck converter, which means it uses an inductor and a switch to reduce the voltage of a DC source, then uses an internal low dropout (LDO) linear regulator to provide the desired output voltage.At its most basic, the LM2670SD-ADJ/NOPB provides step-down conversion of the input voltage. The chip turns on the power switch, usually at a fixed frequency with some control logic, allowing current to flow through the inductor which stores energy in a magnetic field and produces a voltage drop across it which is then transferred to the output. This is the basic step-down conversion or the so-called buck converter circuit.The chip also has two independently adjustable output options. This allows the user to adjust the output voltage to the desired value within the specified range, rather than the fixed output voltage of a traditional buck converter.

Conclusion

The LM2670SD-ADJ/NOPB is an advanced switching regulator developed by Texas Instruments. The chip has a wide range of applications, from consumer and industrial electronics to communication and medical systems. It is optimized to offer high efficiency with low EMI, and it features soft-start, current limit protection, and thermal shutdown protection with two independent output voltage options.The LM2670SD-ADJ/NOPB is a non-isolated, fixed frequency buck converter and it works by turning on the switch at a fixed frequency, allowing current to flow through the inductor, generating a voltage drop which is then transferred to the output. This chip is an excellent choice for the design and implementation of high power, reliable and efficient power supply solutions.

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