TPS76933DBVT

Current - Output:	100mA
Base Part Number:	TPS76933
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	60dB (1kHz)
Current - Quiescent (Iq):	28µA
Series:	--
Voltage Dropout (Max):	0.2V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TPS76933DBVT is a low dropout linear voltage regulator from Texas Instruments. It is a 3-terminal adjustable output device with a current limit of 1.5A. This device has wide operating temperature range and uses very small external components to provide clean supplies with low output ripple. The device is also offered in 3.3V, 5V, 8V and 12V fixed output versions. This application note provides an overview of the application field and working principle of the TPS76933DBVT.

Application Field

The TPS76933DBVT is ideal for those applications where a low dropout linear regulator is required. It is suitable for DC-DC converters and laptop computers. Its low current limit makes it particularly suitable for portable applications where battery power is a concern. This device can also be used in applications where high efficiency, fast transient response and low EMI/RFI performance are required.

Working Principle

The TPS76933DBVT uses a proprietary topology that provides high output accuracy and low drop-out voltage. The device operates as a linear regulator with a high efficiency of up to 75%. The device works by regulating the output voltage by controlling the base current of the internal cascode transistor. This results in an output voltage that is highly accurate and low output ripple. The device has a wide input operating range of 2.5V-17V and output range of 1.2V-20V. The device also has a low output noise and low ground current dissipation.

Features and Benefits

The TPS76933DBVT offers many features and benefits that make it a suitable device for use in a variety of applications. The device is available in both adjustable and fixed output versions which makes it more versatile. Its low drop-out voltage and low noise operation make it suitable for applications where low noise operation is a concern. The device is able to provide up to 1.5A of output current which makes it ideal for applications that require high current operation. The device is also available in an extended temperature range of -40°C to +85°C which makes it suitable for use in extreme environments. The device also has a low total harmonic distortion (THD) and fast transient response time, which makes it suitable for applications that require high signal integrity. Finally, its low quiescent current makes it particularly suitable for portable applications.

Conclusion

The TPS76933DBVT is a 3-terminal linear voltage regulator from Texas Instruments. It is suitable for applications where a low dropout linear regulator is needed such as DC-DC converters and laptop computers. Its adjustable and fixed output options and low drop-out voltage make it suitable for a wide variety of applications. Its wide input operating range, low noise operation, high efficiency and fast transient response make it an ideal device for those applications.

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