TLV74233PDQNR

Current - Output:	200mA
Supplier Device Package:	4-X2SON (1x1)
Package / Case:	4-XDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	70dB ~ 55dB (100Hz ~ 1MHz)
Current - Quiescent (Iq):	50µA
Series:	--
Voltage Dropout (Max):	0.27V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active

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Introduction

The TLV74233PDQNR is a low power linear voltage regulator IC manufactured by Texas Instruments. The IC is used to regulate voltages provided in a wide range of applications, such as Medical, Industrial, and Telecommunications. In this article, the application fields and working principle of the TLV74233PDQNR will be discussed in detail.

Application Fields

The TLV74233PDQNR linear regulator IC is based on a quasi-linear topology that allows for a high power efficiency which makes it highly suitable for many kinds of applications. The TLV74233PDQNR is intended for use in applications requiring a regulated output voltage from a wide input voltage range such as digital systems and communications applications. It can also be used in applications where low thermal resistance is necessary. It is suitable for application in low voltage, high frequency, and low power circuits. The TLV74233PDQNR can be used in various voltage regulation applications, such as power supply regulation, LED lighting, LED driver and mobile charging. It can also be used for battery management and in ultra-low-power consumer electronics. The small SOT-23 package of the IC allows for a large power delivery with minimal board space.

Working Principle

The TLV74233PDQNR uses a voltage reference plus an error amplifier to regulate the output voltage. The voltage reference provides a stable voltage and the error amplifier detects any changes in the output voltage and adjusts the output current accordingly. The regulation circuitry is necessary since the circuit often fails to provide the desired output voltage when the input supply voltage is too high or too low.The TLV74233PDQNR has an output voltage range of 0.8V to 6.5V and can provide an output current up to 200mA. The regulator has a dropout voltage of 600mV with a 7V input voltage and a supply current of about 33μA. The IC also has an adjustable over-voltage clamp which allows for a high degree of safety by preventing an overvoltage of the output.

Conclusion

The TLV74233PDQNR is a low power linear voltage regulator IC designed by Texas Instruments for a wide range of applications. It has a wide input voltage range and can provide an output current up to 200mA. The small SOT-23 package and the adjustable over-voltage clamp make it suitable for use in various voltage regulation applications including LED lighting, LED driver and mobile charging.

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