AS1352-C0CF-T

Voltage Dropout (Max):	--
Supplier Device Package:	12-QFN (4x4)
Package / Case:	12-VQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature, Soft Start
Control Features:	Enable
PSRR:	70dB ~ 40dB (1KHz ~ 100kHz)
Current - Quiescent (Iq):	350µA
Current - Output:	200mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V, 3V, 3V, 3.3V
Voltage - Input (Max):	5.5V
Number of Regulators:	4
Output Type:	Programmable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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AS1352-C0CF-T Application Field and Working PrincipleAS1352-C0CF-T is a low power, linear voltage regulator produced by Avago Technologies. This voltage regulator belongs to the PMIC (Power Management IC) series of voltage regulators. It provides a stable voltage to the connected circuit, and allows the system to operate in an efficient manner. In this article, the application field and working principle of the AS1352-C0CF-T will be discussed in detail.In general, the AS1352-C0CF-T is suitable for power management in portable devices, multimedia and communication. It provides a regulated output voltage of between 2.7V to 5.0V, with a drop-out voltage of typically 0.4V at 3A. This regulator has a Maximum Output Current of 3A, a loop Voltage Difference of 0.02V and a temperature range of -40°C to +85°C. The device also has up to 8% tolerance. It also supports an adjustable output voltage (AOV), enabling it to meet the most challenging output voltage requirements.The working principle of the AS1352-C0CF-T is quite straightforward. It receives a voltage input of 2.7V to 5.5V, and uses an internal error amplifier to regulate the output voltage and hence the power delivered to the connected circuit. This is made possible through a feedback loop. The error amplifier compares the output voltage with the reference voltage, and compares it to the actual output voltage. If the output voltage is not equal to the reference voltage, the amplifier reduces the input voltage, thus reducing the output voltage, until the output voltage matches the reference voltage. In order to ensure a stable output voltage, the AS1352-C0CF-T operates in a very low drop-out (LDO) mode. The reason for this is that this regulator has a very low quiescent current of only 1.8A. When the input voltage is higher than the output voltage, the regulator is said to be in the "drop-out" voltage state, and therefore the voltage regulator will not be able to maintain a stable output voltage. Therefore, when the output voltage falls to a certain level, the regulator will start to draw current in order to maintain the output voltage. This ensures that the connected circuit is provided with a stable and efficient output voltage.In conclusion, the AS1352-C0CF-T is a linear voltage regulator that is specifically designed to provide a regulated output voltage of between 2.7V to 5.0V, with a drop-out voltage of 0.4V at 3A. It is suitable for power management in portable devices, multimedia and communication. It has an adjustable output voltage (AOV), enabling it to meet the most challenging output voltage requirements. Furthermore, it operates in a very low drop-out (LDO) mode, thus ensuring that the connected circuit is provided with a stable and efficient output voltage.

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