LM3448MAX/NOPB

Voltage - Output:	--
Base Part Number:	LM3448
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Applications:	Lighting
Dimming:	Triac
Frequency:	--
Current - Output / Channel:	--
Series:	--
Voltage - Supply (Max):	12V
Voltage - Supply (Min):	8V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Flyback, Step-Down (Buck), Step-Up (Boost)
Type:	AC DC Offline Switcher
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction
The LM3448MAX/NOPB, or the Texas Instruments Logic Supply Voltage Regulator, is an integrated low dropout (LDO) voltage regulator developed for use in power management applications. It performs multiple functions, including providing continuous, stable, low-noise and efficient power supply to a wide range of devices. It also delivers fast response times and a high current output capability. Additionally, the LM3448MAX/NOPB is equipped with programmable over-temperature protection and over-current protection, as well as an adjustable low voltage lockout for improved system reliability. As such, it is suitable for use in a wide range of industrial and embedded applications.Application Field
The LM3448MAX/NOPB is primarily designed for use in a variety of embedded applications, such as in automotive, industrial, consumer and medical systems. It is suitable for use as a starting point in vehicle power electronics, as well as for powering microcontrollers and voltage-sensitive circuits. It can also be used in motor control and power management systems. The LM3448MAX/NOPB is also used in LED lighting-oriented designs, due to its ability to generate a constant current output, and its low profile package option that enable its use in a wide range of form factor requirements. Working Principle
The working principle of the LM3448MAX/NOPB is based on linear regulation, wherein an input voltage is regulated down to a precise output voltage level. In this regard, the device functions as a voltage regulator, where it is able to draw a constant current from an input voltage source and then reduce it to a specific output level. A similar principle is applied as a constant current regulator when the device is used to control LEDs. In this scenario, the input voltage is received and regulated down to a constant output current value. The LM3448MAX/NOPB is equipped with an internal low-noise wide range of voltage regulation, adjustable current limit, thermal shutdown and over-voltage lockout circuitry. It is also capable of providing up to 1.25 A of continuous output current over an input voltage range of 2.7V to 16V. This makes it ideal for powering sensitive loads, such as cameras and audio systems, as well as for driving voltage-controlled components like LEDs.Finally, the device is highly configurable, as it is equipped with several external components, such as resistors and capacitors, that can be used to customize the circuit configuration. This allows the device to be tailored to specific requirements, making it suitable for a wide range of applications.Conclusion
The LM3448MAX/NOPB is a versatile and cost-effective voltage regulator that is suitable for use in a wide range of embedded, industrial and automotive applications. It offers a low dropout voltage, high accuracy, wide input voltage range, and adjustable over-temperature protection and over-current protection circuitry. Additionally, it is capable of supplying up to 1.25 A of continuous output current, making it ideal for powering sensitive loads and voltage-controlled components, such as LEDs. These applications, combined with its highly configurable nature, make the LM3448MAX/NOPB an attractive device for LED drivers.

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