LM350TG

Current - Output:	3A
Base Part Number:	LM350
Supplier Device Package:	TO-220-3
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	65dB ~ 80dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	33V
Voltage - Output (Min/Fixed):	1.2V
Voltage - Input (Max):	35V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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LM350TG application field and working principle

The LM350TG is an adjustable voltage regulator from Texas Instruments. It is a three-terminal positive-voltage regulator that can provide up to 3A output current with a voltage range of 1.2V to 37V. The regulator has an on-chip temperature compensation and thermal overload protection, providing improved performance over conventional three-terminal regulators. The LM350TG is most often used in a variety of applications including voltage regulators, DC-DC converters, battery chargers, and power supplies. It is also suitable for more demanding applications such as high-current regulator circuits and power controlling. In all of these applications, the versatile LM350TG provides the user with accurate regulation of output voltage.

Detailed Description

The LM350TG is a three-terminal, adjustable positive voltage regulator with an output current of up to 3A. It can provide up to 1.2V to 37V output voltage. It has internal current limiting, thermal shutdown and safe-area compensation, making it ideal for applications where higher output currents are required. It has a temperature coefficient of 0.2%/°C and low output noise.

Features and Benefits

The LM350TG features a wide input voltage range, accurate regulation of output voltage, high output current and low output noise. It also provides excellent thermal protection, over-temperature protection, and low noise level even at high current levels. Additionally, the device operates over a wide temperature range and can be used with a wide range of capacitors and inductors.

Applications

The LM350TG is widely used in a variety of applications, including:

• Voltage regulator
• DC-DC converters
• Battery chargers
• Power supplies
• High-current regulator circuits
• Power controlling.

Working Principle

The LM350TG is an adjustable 3-terminal positive internal voltage regulator. It consists of a PNP pass transistor, an error amplifier, and a current-limiting circuit. The regulator functions by comparing the voltage of the reference terminal and the voltage on the adjustment terminal, which generates an error signal at the error amplifier. This error signal is then used to regulate the output voltage by controlling the amount of current flowing through the pass transistor. The regulator is designed to deliver up to 3A of output current, with an output voltage ranging from 1.2V to 37V. The LM350TG includes thermal and over-temperature protection, limiting the power dissipation of the transistor. It also includes a temperature compensation circuit, which helps maintain output voltage accuracy in the presence of temperature changes.

Conclusion

The LM350TG is an adjustable three-terminal positive voltage regulator with an output current of up to 3A. It can provide up to 1.2V to 37V output voltage and is widely used in a variety of applications, including voltage regulators, DC-DC converters, battery chargers, and power supplies. It has an on-chip temperature compensation and thermal overload protection, providing improved performance over conventional three-terminal regulators. The LM350TG functions by comparing the references output voltage to the adjustment voltage, which generates an error signal at the error amplifier. This error signal is then used to regulate the output voltage by controlling the pass transistor current.

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