S-1312A14-A4T1U3

Current - Output:	150mA
Supplier Device Package:	HSNT-4-A
Package / Case:	4-SMD, Flat Lead Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Overcurrent, Thermal Shutdown
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	30µA
Current - Quiescent (Iq):	1µA
Series:	S-1312
Voltage Dropout (Max):	0.5V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.4V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionThe S-1312A14-A4T1U3 voltage regulator is an adjustable linear regulator developed by AOS. It is part of the S-1312A14 series of power management integrated circuits (PMIC). It is suitable for a wide range of applications, including industrial, automotive and consumer electronics.FeaturesThe S-1312A14-A4T1U3 is an adjustable linear regulator with 3.3V and 5V external voltage regulator components. It features adjustable voltage reference, current limit and on/off control. The device offers a maximum output current of 400mA and is available in a variety of package styles. In addition to its adjustable voltage reference, the device offers a thermal shutdown feature and low quiescent current. It also features a programmable soft-start time, which prevents high inrush current when the device is turned on. The device is protected against reverse polarity, shorts and thermal overload. It also offers a thermal shutoff feature which prevents internal damage in the event of an overload.SpecificationsThe S-1312A14-A4T1U3 has a maximum power dissipation rating of 8W, with a maximum input voltage of 36V and a maximum output voltage of 25V. The device has an operating temperature range of -40°C to 125°C and a storage temperature range of -65°C to 150°C. The device has an adjustable output voltage range of 0.8V to 6V. The adjustable current limit is set by four external resistors and has a range from 350mA to 1.6A. The device also has a programmable soft-start time, with a range of 30mSec to 1mSec. The quiescent current of the device is typically less than 8mA. The device has a minimum load of 10mA.Application Field and Working PrincipleThe S-1312A14-A4T1U3 is used in a wide range of applications, including industrial, automotive, and consumer electronics. It is suitable for use in power supply systems and applications requiring adjustable output voltage or current limit.The device is based on an adjustable linear regulator topology. The output voltage is set by the voltage reference, which is determined by an external voltage divider. The current limit is also determined by an external resistor. The device monitors the output current and adjusts the bias voltages to regulate the output voltage. In the event of a short or an overload, the device will detect the overcurrent and shut off the output. The thermal shutdown feature will also shut off the output if the internal temperature exceeds a preset threshold.The device has a programmable soft-start circuit which prevents high inrush current when the device is first turned on. The soft-start circuit slowly ramps up the output voltage, starting at a much lower level and gradually increasing to the full output voltage. This protects the device from inrush currents and reduces the voltage stress on components connected to the output. ConclusionThe S-1312A14-A4T1U3 is an adjustable linear regulator suitable for a number of applications in industrial, automotive and consumer electronics. It features adjustable voltage reference, current limit and on/off control. It also has a thermal shutdown feature and a programmable soft-start time, which prevents high inrush current when the device is turned on. The device is protected against reverse polarity, shorts and thermal overload. It has a maximum power dissipation rating of 8W, a maximum input voltage of 36V and a maximum output voltage of 25V.

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