S-1137A1J-I6T2U

Current - Output:	300mA
Supplier Device Package:	SNT-6A (H)
Package / Case:	6-SMD, Flat Leads
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable, Soft Start
PSRR:	70dB (1kHz)
Current - Supply (Max):	65µA
Current - Quiescent (Iq):	1µA
Series:	S-1137
Voltage Dropout (Max):	0.42V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.85V
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

The S-1137A1J-I6T2U is an ultra-low dropout linear voltage regulator of integrated circuit. Specifically, it belongs to the category of PMIC (Power Management ICs) voltage regulators – linear. Usually, this type of linear voltage regulators yields a voltage to power integrated circuits by controlling the thermodynamic power dissipated as heat.The S-1137A1J-I6T2U is a tiny low power device produced by SHOTOKU Japan Corporation, capable of being prominently used in cellular phones, notebook PCs and other WiFi devices due to its ultra-low current consumption. This device prevents over-voltage on outputs, fault conditions, and provides stability in the system with the help of over voltage protection and thermal shutdown. The S-1137A1J-I6T2U likewise offers superior line and load regulation, efficient use of current paths, low EMI generation with its low-input operational amplifier and many more features besides.

Application Field and Working Principle

The S-1137A1J-I6T2U is mainly utilized in cellular phones, notebook PCs and other WiFi devices where low power consumption is a priority, due to its superior line and load regulation and efficiency in current paths. Nonetheless, the S-1137A1J-I6T2U can also be adopted in other purposes and equipment, where high functional stability is a must — such as in audio equipment, and amplifying circuits.The S-1137A1J-I6T2U is a low drop-out linear voltage regulator of integrated circuit and works on the principle of voltage regulation or linear regulation. It controls thermodynamic power dissipated as heat. Consequently, it allows the regulation of voltage regardless of the current draw, often considered beneficial for powering ICs. The S-1137A1J-I6T2U produces a low Electomotive force (EMF) of only 0.5 V. It is able to maintain over voltage protection when in operation, to prevent over-voltage on outputs, fault conditions, and provide stability on the system. Its low-input operational amplifier also prevents the generation of unnecessary noise. The S-1137A1J-I6T2U provides real-time adjustments, by monitoring and maintaining the output voltage. This voltage regulator is able to do so with the help of a monitoring transistor which in turn causes an increase of resistance. This increases the stability of the control loop of the voltage regulator and therefore, it is able to adjust quickly to any voltage changes. The S-1137A1J-I6T2U is also capable of remaining in equilibrium constantly. That is, it reads the current output voltage from the reference voltage, where it in turn assess the amount of current is supplied to the controlled load (regulation), the actual voltage, and the amount dissolved power in the linear regulator. Subsequently, this feedback regulates the current in the output stage. The S-1137A1J-I6T2U can be primed to different target voltages with the help of a wide range of resistors. This device also has access to capacitors on the input and output as well — this reduces electromagnetic interference while increasing ripple tolerance and short-circuit protections.

Conclusion

In conclusion, the S-1137A1J-I6T2U is an ultra-low dropout linear voltage regulator of integrated circuit which can be used on a variety of equipment and devices where high functional stability and low power consumption are important. It works with the help of a monitoring transistor which enables it to make real-time adjustments, maintain over voltage protection and stability on the system. The S-1137A1J-I6T2U yields a voltage to power integrated circuits by controlling the thermodynamic power dissipated as heat, and prevents the generation of unnecessary noise with its low-input operational amplifier.

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