TPS79933DRVT

Current - Output:	200mA
Base Part Number:	TPS79933
Supplier Device Package:	6-SON (2x2)
Package / Case:	6-WDFN 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 ~ 38dB (100Hz ~ 100kHz)
Current - Quiescent (Iq):	60µA
Series:	--
Voltage Dropout (Max):	0.16V @ 200mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

TPS79933DRVT is a low-dropout linear regulators from Texas Instruments\' Power Management ICs family. It consists of an error amplifier, voltage reference, and the pass elements. The device is designed for a fast transient response and a very low dropout voltage in portable applications.

Application Field

TPS79933DRVT is especially designed for portable applications that require extremely low dropout voltage and ultra-fast transient response. It is typically used in battery powered applications in outputs from 1.0V to 3.15V with a minimum load of 3mA. It can also be used in automotive and other applications that require small output voltage with adjustable voltage levels and fast response times.

Features

TPS79933DRVT offers excellent features such as low dropout voltage (<160mV), high current rating up to 500mA, fast transient response with typical < 1 microsecond settling time, adjustable output voltage levels, and short circuit protection. The device also includes thermal shutdown protection and current limit protection.

Working Principle

The TPS79933DRVT is a low-dropout linear regulators that use an error amplifier and a voltage reference to regulate output voltage. The error amplifier compares the input voltage with the voltage reference and the output of the error amplifier is fed to the pass elements to maintain the desired output voltage. The internal pass elements operate in series with a fixed reference voltage. The voltage across the pass elements varies depending on the load current and the output voltage, but it is always lower than the reference voltage. With the low-dropout voltage of TPS79933DRVT, the load current can be controlled accurately with minimal power loss.

Conclusion

TPS79933DRVT is a low-dropout linear regulator from Texas Instruments. It is designed for portable applications that require extremely low dropout voltage and ultra-fast transient response with adjustable voltage levels. The device includes features such as low dropout voltage (<160mV), high current rating up to 500mA, fast transient response, and short circuit protection as well as thermal shutdown protection and current limit protection. It works by comparing an input voltage with a voltage reference and feeding the output of the error amplifier to the pass elements to maintain the desired output voltage.

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