S-1312D2J-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):	0.32V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.85V
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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Introduction:

S-1312D2J-A4T1U3 is a Voltage Regulator from the Linear family. It is significant for its package size, low dropout, wide input voltage and weatherproof feature

Applications:

S-1312D2J-A4T1U3 is typically used in consumer electronics and automotive applications, such as Mobile phones, tablets, PDA, industrial controllers, medical devices, DC/DC converters, and LED lighting.

Features:

The S-1312D2J-A4T1U3 has a wide supply voltage of 5V to 24V and has a low dropout of 0.9V at 1.2A. It has high power dissipation capabilities and it can work in temperature as low as - 40℃ and up to 125℃. It provides a maximum operating current of 1.2A and its load regulation is 0.25% over the full line. Its features include overload, output shut down and thermal protection.

Working Principle:

The principle of the S-1312D2J-A4T1U3 is to maintain the output voltage at a stable level regardless of ambient temperature and input voltage changes. It works by converting the input voltage into a lower output voltage through a linear series regulator. The output load is connected to the emitter of PNP transistor in the regulator. When the output voltage drops due to an increase in the load current, the output voltage is maintained by increasing the Base-Emitter voltage of the transistor to increase the current supplied to the load. This results in an increased voltage at the output terminal. The transistor is placed in the thermal shut down mode when the power dissipated by the transistor exceeds the power rating of the regulator.

Conclusion:

S-1312D2J-A4T1U3 is a Voltage Regulator from the Linear family which is used in various electronics and automotive applications due to its wide input voltage, small package size, low dropout and weatherproof feature. The working principle of the S-1312D2J-A4T1U3 is to maintain a stable output voltage by using the linear series regulator. It can work in temperature as low as -40℃ and up to 125℃. It provides a maximum operating current of 1.2A and its load regulation is 0.25%. This regulator also features overload, output shut down, and thermal protection.

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