TPS77718DR

Current - Output:	750mA
Base Part Number:	TPS77718
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable, Power Good, Reset
PSRR:	60dB (1kHz)
Current - Quiescent (Iq):	125µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
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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TPS77718DR Application Field and Working Principle

PMIC (Power Management Integrated Circuit) is an integrated circuit designed to manage the power of a system. From the consumption point of view, it is designed to convert, regulate, and measure the electricity of the system. Voltage regulators are used as part of the PMIC to stabilize and control the voltages in the application. Linear voltage regulators serve to either limit or increase the voltage applied to the system. They provide a regulated output voltage at a proportion to the input voltage. The Texas Instruments TPS77718DR is a high-precision, linear low-dropout (LDO) device, offered in a small SOT-23 package that is able to regulate several volts in difference.

Applications Fields Of TPS77718DR

The TPS77718DR is ideally used in a wide range of applications such as automotive, high efficiency LED lighting, medical, high power motive communication, power line communication (PLC) and energy management. These applications are especially in need of a low-dropout linear regulator with a wide input voltage range, fast transient response and a low operating current. Its typical operating conditions lie between -40 and 120 degrees Celsius, making it applicable to very low and very high temperature environments.

Description Of TPS77718DR

The TPS77718DR is a high-precision linear voltage regulator with a very low 20mV dropout voltage at light loads, offering a very precise voltage regulation with a output voltage offset of 350 microvolts and also providing very fast transient response to load steps. The device offers a high PSRR of -72db and a high output current capability of 150mA without requiring any external component.

Features Of TPS77718DR

The TPS77718DR is a high-efficiency and low-power LDO linear voltage regulator. It has an input voltage range of 2.5V to 5.5V and adjustable output voltage, which can be selected from 1.5V to 5V according to user’s requirements. It maintains a very low, fixed 20mV dropout voltage, which makes it an ideal choice for applications requiring low dropout voltage operation. As the TPS77718DR is designed with an external resistor, it offers a user-adjustable, high output current accuracy of +-1.5% peak. The device has a current-limiting protection that limits the output current to less than 150mA, which makes it an excellent choice for applications with low power draw, such as LED lighting and communication systems.

Working Principle Of TPS77718DR

The TPS77718DR is designed to provide an adjustable and precise output voltage with a very low dropout voltage that can maintain a very stable operation over the whole regulating range. The linear voltage regulator utilizes an error amplifier to compare the output voltage with a reference voltage and control the output voltage. The error amplifier controls the output voltage through the reference voltage by feeding control current to the output stage. The output current is then supplied through an N-MOSFET and the inductor to provide low output impedance. The current limiting protection is implemented to protect the device from excessive output current. In conclusion, the TPS77718DR is an ideal choice for applications requiring low-dropout, high-accuracy and low-power linear voltage regulation. It provides a wide input voltage range, fast transient response and a low operating current, making it suitable for many applications such as automotive, medical, high efficiency LED lighting and communication systems. The TPS77718DR is perfectly suited for mobile and battery-operated systems, where low quiescent current, low noise and high PSRR, and low dropout are desired.

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