TPS71728DCKR

Current - Output:	150mA
Base Part Number:	TPS71728
Supplier Device Package:	SC-70-5
Package / Case:	5-TSSOP, SC-70-5, SOT-353
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 ~ 45dB (100Hz ~ 1MHz)
Current - Quiescent (Iq):	100µA
Series:	--
Voltage Dropout (Max):	0.3V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.8V
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

TPS71728DCKR is one of the most popular linear voltage regulators for industrial and automotive applications by Texas Instruments. It is a low-dropout (LDO) regulator with an integrated power-on reset and enables high electric current output while dissipating only a small amount of thermal power. This makes it an ideal choice for high current output applications.

Applications of TPS71728DCKR

TPS71728DCKR is widely used in industries related to power management. Its applications range from automotive systems, laptops, handheld devices and set-top boxes, to industrial controllers, telecom systems and medical devices.

Working Principle of TPS71728DCKR

TPS71728DCKR functions as a voltage regulator device for low drop-out (LDO) applications. It maintains a stable voltage output in the presence of switching power cycles and transient current load. The output load current is controlled by the total resistance R OUT connected across the regulator\'s output pin.The device consists of a voltage reference, an error amplifier and a low-dropout pass transistor. When the output voltage is higher than the reference voltage, the error amplifier sends a signal to the pass transistor, turning it off to reduce the current. Conversely, if the output voltage is lower, the error amplifier sends a signal to turn the transistor on, increasing current.

Features of TPS71728DCKR

TPS71728DCKR offers several features to make its application convenient. • Wide input voltage range of 6 to 20V• Output voltage options of 1.5V, 1.8V, 2.5V, 3.3V, 5V and 3.3V±2%• Load currents up to 2A in continuous mode and 4A in pulse mode• Output voltage accuracy of ±0.5% • Output current limiting and short circuit protection• Low dropout voltage of 0.2V• Low quiescent current of 40µA• External compensation option• Thermal shutdown functionality• Over-voltage protection and open circuit protection

Conclusion

TPS71728DCKR is an ideal linear voltage regulator for applications requiring high electric current outputs with low quiescent current and low thermal dissipation. Its wide range of input and output voltage options and other features make it suitable for use in a variety of industrial and automotive applications.

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