AZ2940S-3.3TRG1

Voltage Dropout (Max):	0.55V @ 1A
Supplier Device Package:	TO-263
Package / Case:	TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	--
PSRR:	--
Current - Output:	1A
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	13.2V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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AZ2940S-3.3TRG1 Application Field and Working PrinciplePMIC stands for Power Management Integrated Circuit and Voltage Regulators are one of the most important applications of PMICs. Voltage Regulators, in particular, Linear, provide adjustable voltages for power supplies. The AZ2940S-3.3TRG1 is a Linear Voltage Regulator offered by Diodes Incorporated, a leading global supplier of high-quality semiconductor solutions. This device is specifically designed to provide 3.3V from an adjustable input voltage between 2.8V to 5.5V. Additionally, the AZ2940S-3.3TRG1 operates with an 8-bit serial interface and provides programmable current limit and adjustable output voltage via an I2C digital interface as well.The AZ2940S-3.3TRG1 is a fixed output voltage, three-terminal voltage regulator which is designed to enable the regulation and distribution of supply voltages to various loads in a range of applications. These applications include power and low-voltage extraction in systems such as cellular phones and mobile devices and other applications that require a low-noise, high-efficiency linear voltage regulator.The AZ2940S-3.3TRG1 has excellent load and line regulation characteristics at 3.3V with a load current up to 3A. Its fast loop response time eliminates the need for oversized capacitors and costly dynamic compensation networks, making it ideal for power-sensitive devices. The AZ2940S-3.3TRG1 supports an adjustable output voltage that can be adjusted from 2.8V to 5.5V using the I2C digital interface. Additionally, its adjustable current limit at 473mV typically is also offered to ensure operational stability in case of a fault condition.To understand the working principle of the AZ2940S-3.3TRG1, it is important to recognize the three main components of it - the regulator, the error amplifier, and the control logic. The regulator is responsible for acting upon the difference in voltage between the input and the desired output and reducing that difference. The error amplifier compares the output voltage with a reference voltage and produces a voltage output that can increase or decrease the output of the regulator. The control logic is only activated when the voltage difference is greater than the desired level, and this allows the regulator to reduce the output appropriately.In conclusion, the AZ2940S-3.3TRG1 is a versatile and reliable voltage regulator suitable for a wide range of applications. It offers excellent load and line regulation characteristics and adjustable output voltage via an I2C digital interface. Furthermore, thanks to its fast loop response time, the AZ2940S-3.3TRG1 eliminates the need for oversized capacitors and costly dynamic compensation networks and ensures operational stability in case of a fault condition.

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