BU19TD2WNVX-TL

Current - Output:	200mA
Base Part Number:	BU19TD2
Supplier Device Package:	SSON004X1010
Package / Case:	4-UDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Quiescent (Iq):	60µA
Series:	--
Voltage Dropout (Max):	0.6V @ 200mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.9V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

BU19TD2WNVX-TL is a linear voltage regulator developed by ON Semiconductor. It is a three-terminal low dropout (LDO) and designed to provide excellent regulation accuracy and transient response in a very small package. This voltage regulator is suitable for a wide range of applications, from industrial to consumer applications.

Application Field

The BU19TD2WNVX-TL regulator voltage can be used in many different applications, such as industrial electronics, automotive electronics, telecom, computer and consumer electronics, and other general-purpose applications which require tight regulation and low dropout voltage. With its small size and high efficiency, it is also suitable for portable electronics.The BU19TD2WNVX-TL regulator voltage can provide a high level of accuracy over a wide operating temperature range, making it ideal for applications with high accuracy, such as medical and industrial applications. Its low dropout voltage also makes it suitable for battery and point of load applications.

Working Principle

The BU19TD2WNVX-TL voltage regulator operates in a linear mode, meaning that it regulates the output voltage by drawing power from the input voltage. The amount of power drawn depends on the output voltage required, and is regulated through a series of feedback loops. The regulator uses a power MOSFET to pass current through the output voltage, with the amount of current controlled through a voltage divider connected to the output voltage. The power MOSFET acts as a switch, allowing current to flow when the output voltage drops below the set voltage, and decreasing the current when the output voltage rises above the set voltage.The regulator also uses an error-amplifier circuit to compare the output voltage to the set reference voltage. The error amplifier provides feedback to the power MOSFET to ensure that the output voltage is held to the reference voltage. The output voltage is also monitored internally by a circuit which monitors the quiescent current of the regulator. This ensures that the output voltage is maintained over the full range of operating conditions.

Conclusion

The BU19TD2WNVX-TL is a three-terminal linear voltage regulator designed to provide accurate regulation and low dropout voltage in a very small package. It is suitable for a wide range of applications, from medical and industrial applications to automotive electronics, telecom, computer and consumer electronics, and other general-purpose applications which require tight regulation and low dropout voltage. The regulator operates in a linear mode, drawing power from the input voltage, and utilizing a power MOSFET and an error amplifier to regulate the output voltage.

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