S-1142D80I-E6T1U

Series:	S-1142C/D
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	50V
Voltage - Output (Min/Fixed):	8V
Voltage - Output (Max):	--
Voltage Dropout (Max):	0.45V @ 200mA
Current - Output:	200mA
Current - Quiescent (Iq):	1µA
Current - Supply (Max):	9µA
PSRR:	35dB (100Hz)
Control Features:	Enable
Protection Features:	Over Current, Thermal Shutdown
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	6-SOIC Variation (0.154", 3.9mm Width), 4 Leads + 2 Fins
Supplier Device Package:	6-HSOP

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Introduction

The S-1142D80I-E6T1U is a linear voltage regulator featuring high linearity and low standby power, suitable for applications in several fields. It provides a maximum output current of 80mA, adjustable output voltage of between 1.22 and 5.5V, and an adjustable low-quiescent current of 4.5uA. Furthermore, to ensure system performance and reliability, the S-1142D80I-E6T1U incorporates a full-scale thermal protection step-down regulator within its design.

Applications

The S-1142D80I-E6T1U linear voltage regulator is designed to support a variety of applications. Notably, it is suitable for use in IoT and battery-powered devices, such as wearables, sensors, automotive components, wireless battery chargers, and healthcare systems. Namely, due to its low quiescent current of 4.5uA and standby current of 85uA, it is particularly suitable for wearables and other battery-powered systems.In addition, its high linearity enables the device to handle a large transient load current while maintaining excellent line and load regulation. This makes it ideal for use in line-powered systems where high load current is required. Furthermore, its wide operating temperature range of -40 to +125°C allows for robust functioning in a variety of operating environments.

Working Principle

The S-1142D80I-E6T1U voltage regulator is a step-down regulator featuring high linearity and low quiescent current. In this design, an external reference provides a reference voltage to the internal band-gap circuitry of the device, which is then used to regulate the output voltage of the device. This is done through a combination of voltage and current parameters, including the resistors and transistors used in the circuitry.In addition, the S-1142D80I-E6T1U has an integrated over-temperature protection circuit, to protect the device during operation. When the temperature exceeds a certain value, an internal circuit is triggered and shuts off the output current, thereby protecting the current flow and allowing for reliable operation in a variety of conditions.

Conclusion

The S-1142D80I-E6T1U is a linear voltage regulator capable of handling a high current load and providing reliable performance in battery-powered and line-powered systems. Its high linearity and low quiescent current make it suitable for wearables and other battery-powered devices, while its integrated thermal protection circuit ensures robust operation in a variety of conditions.

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