TPS70918QDBVRQ1

Current - Output:	150mA
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, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	80dB ~ 52dB (10Hz ~ 1kHz)
Current - Supply (Max):	350µA
Current - Quiescent (Iq):	2.05µA
Series:	Automotive, AEC-Q100
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	30V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TPS70918QDBVRQ1 application field and working principle

The TPS70918QDBVRQ1 is a linear voltage regulator (also known as a lowdropout, or LDO) from Texas Instruments (TI). It is a low-power, high-efficiency, adjustable device that can be used to provide a wide range of output voltages. The device is offered in a small 16-pin Leadless Chip Carrier (LCC) package and is suited for a variety of different applications, such as automotive, communications, industrial, and medical.The TPS70918QDBVRQ1 considerably reduces quiescent current compared to other LDOs and can provide as much as an 80% power saving compared to other regulators, making it an ideal in applications such as mobile phones and personal digital assistant (PDA) systems. The device is also very stable and is designed to minimize output voltage noise, making it suitable for use in sensitive analog applications.The TPS70918QDBVRQ1 is a multi-range, adjustable linear regulator with an input voltage range of 8 V to 35 V. It provides an adjustable and fixed output voltage range of 1.2 V to 5.5 V, in 0.3 V increments. The device has very low quiescent current requirements of approximately 0.7 mA. It is also designed to allow up to 1 A of output current during normal operation, making it ideal for use in a range of high-current applications.The TPS70918QDBVRQ1 uses a proprietary constant-gate-voltage technology which allows it to provide excellent line and load regulation, even in the presence of high input voltage and output load transients. This allows the device to provide fast response times, low output voltage noise and high accuracy.The working principle of the TPS70918QDBVRQ1 is based on a closed loop, proportional-integral (PI) regulator circuit. This circuit comprises an error amplifier, a reference voltage, and a control circuit. The error amplifier compares the output voltage of the regulator with a reference voltage and uses the difference in these two voltages to generate an error signal. This error signal is then passed to the control circuit, which adjusts the output voltage accordingly.The output voltage of the TPS70918QDBVRQ1 can be adjusted by varying the reference voltage. This is done through an external voltage divider made up of two resistors connected to the Vref pin. The ratio of the two resistors determines the output voltage of the regulator. Once the reference voltage is set, the error amplifier compares the output voltage of the regulator with the reference voltage, and adjusts the output voltage accordingly.In summary, the TPS70918QDBVRQ1 is a low-power, high-efficiency, adjustable linear voltage regulator from Texas Instruments. It is offered in a small 16-pin Leadless Chip Carrier (LCC) package and is suited for a variety of different applications. The device has very low quiescent current requirements of approximately 0.7 mA, and can provide up to 1A of output current. Its proprietary constant-gate-voltage technology allows it to provide excellent line and load regulation, even in the presence of high input voltage and output load transients. The output voltage of the device can be adjusted by varying the reference voltage, which is done through an external voltage divider.

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