AAT3238IJS-1.2-T1

Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	5.5V
Voltage - Output (Min/Fixed):	1.2V
Voltage - Output (Max):	--
Voltage Dropout (Max):	0.6V @ 300mA
Current - Output:	300mA
Current - Quiescent (Iq):	125µA
PSRR:	67dB ~ 45dB (1kHz ~ 1MHz)
Control Features:	Enable
Protection Features:	Over Temperature, Short Circuit
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-TFSOJ (0.069", 1.75mm Width)
Supplier Device Package:	8-SC70JW
Series:	microPOWER™
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Output Configuration:	Positive

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AAT3238IJS-1.2-T1 Application Field and Working Principle

AAT3238IJS-1.2-T1 is a linear voltage regulator that belongs to the PMIC (power management integrated circuit) family. It is a device specially designed to control the output voltage levels in electronic circuits, by maintaining the voltage within its regulation limits in order to protect the device from damage or reduce power losses due to improper voltage levels.This particular device is rated as a low dropout (LDO) regulator, since its maximum dropout voltage is low. It is especially suitable for an application that requires low output currents and relatively higher input voltages due to its high input voltage range of 1.8 V to 6.5 V. According to the manufacturer, this device can deliver up to 250 mA of output current with a maximum dropout voltage of 1.2 V.The AAT3238IJS-1.2-T1 device can operate in three different modes including normal, ultra-low noise and shutdown. Under normal operating conditions, the output voltage is maintained at the set Vout level and it will not be affected by environmental conditions such as temperature, AC mains noise or load variations. In ultra-low noise mode, the device can reduce the output noise levels significantly, which eliminates the need for additional noise filtering capacitors on the output line. The shutdown mode of this device can be used in applications that require power saving capabilities. In this mode, the current drawn from the input supply is reduced to near zero, but the output voltage stays within the specified Vout levels.The working principle of this device is based on the conversely proportional behavior of the voltage regulator and load. The voltage regulator monitors the output voltage levels and makes sure that it stays within the tolerance levels, even if the load current changes. As the load current increases, the voltage regulator slightly decreases the output voltage, and the converse is true. The AAT3238IJS-1.2-T1 device features full protection from various hazards, such as over temperature shutdown, thermal overload protection, output over voltage protection and reverse-battery protection. It also features a power good signal to provide an additional layer of protection for the external ICs, by providing a signal that indicates when the output voltage is within the specified levels. Additionally, it can be used in applications that require power sequencing, since it has the capability to delay the output voltage when enabled under certain conditions.The AAT3238IJS-1.2-T1 device is suitable for a wide range of applications, such as portable electronic devices, communications and networking equipment, industrial controls and automotive systems. This device is available in 1.2V and 1.8V fixed voltage options, which makes it ideal for a variety of applications.In conclusion, the AAT3238IJS-1.2-T1 device is a reliable and efficient linear voltage regulator that provides the necessary level of protection for the devices it is powering. It is reliable, efficient and feature rich, making it an ideal choice for portable electronic devices and other applications that require precise voltage regulation.

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