S-1315A1J-M5T1U3 Integrated Circuits (ICs)

Current - Output:	200mA
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable
PSRR:	60dB (1kHz)
Current - Supply (Max):	13µA
Current - Quiescent (Iq):	1µA
Series:	S-1315
Voltage Dropout (Max):	0.486V @ 200mA
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-1315A1J-M5T1U3 is a linear voltage regulator, a part of the PMIC (Power Management ICs). It is a low dropout (LDO) regulator that ensures the output voltage is consistent even when the input voltage is operating within its specified limits. The chip features adjustable output voltage, over-current and thermal protection, and can support high ESR output capacitors. This article will discuss the application fields and working principles of the S-1315A1J-M5T1U3.

Application Areas

The S-1315A1J-M5T1U3 is an ideal voltage regulator for various applications including embedded systems, power control systems, and portable devices. Its wide input voltage range and adjustable output voltage make it suitable for many kinds of circuits needing to draw on a consistent power source. Its low dropout voltage and low quiescent current make it well-suited for battery-powered applications. Thanks to its high output current capability and thermal protection, the S-1315A1J-M5T1U3 is suitable for high-power applications.

Working Principle

The S-1315A1J-M5T1U3 functions as a linear voltage regulator by comparing the reference voltage to the output voltage, and then adjusting the current consumed by the input voltage in order to maintain the output voltage at a constant level. The device consists of an internal error amplifier, a high gain amplifier and a pass transistor, which works together to compare the reference voltage to the output voltage and make adjustments to the current draw from the input voltage as needed.The S-1315A1J-M5T1U3 also features over-current protection, which prevents the device from exceeding its rated output current by turning off the current flow until the output current returns within its normal limits. It also features thermal protection, which shuts down the device when it gets too hot to ensure its safe operation.

Conclusion

The S-1315A1J-M5T1U3 is an adjustable linear voltage regulator suitable for a wide range of applications. Its adjustable output voltage, low dropout voltage, and low quiescent current make it an ideal choice for battery-powered applications while its high output current capability and thermal protection make it suitable for high-power applications. The device functions by comparing the reference voltage to the output voltage and adjusting the current draw as needed.

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