AS1353-18-T Integrated Circuits (ICs)

Voltage Dropout (Max):	--
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity, Short Circuit
Control Features:	Enable
PSRR:	60dB (100Hz)
Current - Quiescent (Iq):	180µA
Current - Output:	150mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Cut Tape (CT)

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Introduction

AS1353-18-T is an integrated linear voltage regulator from ams AG company. It is a wide-VIN multi-output regulator and a system power management IC (PMIC) with a selection of four voltages: 2.5 and 3.3 V with a maximum output current of 500 mA (at rated temperature) and two 1.8 V with maximum output current of 300 and 500 mA, respectively. It is designed to enable high performance, flexibility, and scalability in a very small footprint.The AS1353-18-T provides a wide input voltage range, enabling the device to cater to a variety of applications. It provides pressure, temperature and voltage monitoring with programmable alarm thresholds as well as power sequencing features. It features a robust bill of materials and an ultra-low quiescent current, which ensures high efficiency and low noise in battery powered applications.

Applications

The AS1353-18-T is suitable for a wide range of applications such as:- Smartphones- Wearable Devices- IoT Devices- Industrial Equipment- Automotive SystemsThe device\'s features and wide input voltage range make it well-suited for a variety of mobile, mobile IoT and wearable applications, such as smartwatches, tablets, or AR/VR devices. It is also suitable for industrial applications, due to its high safety, wide input voltage range and robust design. The device\'s low power consumption and thermal management make it a great choice for automotive applications.

Working Principle

The AS1353-18-T is based on the Linear Voltage Regulator (LVR) architecture. It uses a voltage reference and active circuitry to regulate the output voltage of an electronic system. It works by comparing the output voltage to an internal reference voltage and using an error amplifier to drive an output transistor that adjusts the output voltage as necessary. The output voltage will be stable as long as the output load current stays within the predefined maximum current limits.The LVR, like any other regulator, consists of two parts: a reference voltage and a feedback loop. The reference voltage is set by an ingrained voltage reference, and the output voltage is kept at a certain level by the feedback loop. The feedback loop continuously checks the output voltage of the voltage regulator against the reference voltage, and if there is any discrepancy, it will adjust the output voltage accordingly.

Conclusion

The AS1353-18-T is a high-speed, highly efficient and robust integrated linear voltage regulator from ams AG. With its wide input voltage range, robust bill of materials, ultra-low quiescent current, internal thermal management, and pressure/temperature monitor, it is suitable for a variety of mobile, mobile IoT, wearable, industrial and automotive applications. It is based on the Linear Voltage Regulator architecture, which uses a voltage reference and active circuitry to regulate the output voltage of an electronic system.

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