S-13R1F1J-A4T2U3

Current - Output:	150mA
Supplier Device Package:	HSNT-4-B
Package / Case:	4-SMD, Flat Lead Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Overcurrent, Reverse Current, Thermal Shutdown
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	9µA
Current - Quiescent (Iq):	1µA
Series:	S-13R1
Voltage Dropout (Max):	0.28V @ 100mA
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:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction

The S-13R1F1J-A4T2U3 is a three-terminal, linear voltage regulator. It is a member of the S-13R1 family of voltage regulators with low dropout (LDO) voltage ranges, suitable for automotive applications. This device offers improved power performance relative to standard linear regulators. It has good dynamic characteristics such as low output impedance, high output voltage accuracy, and extremely low output noise, making it an excellent choice for system power supply timing.

Application field

The S-13R1F1J-A4T2U3 is designed for use in automotive, commercial, industrial, and power supply applications, especially in timing systems where noise management and low ripple are desired. This device can be used in a wide variety of automotive, computer and device applications such as LED drivers, DC/DC converters, battery packs, battery back up systems, audio amplifiers, displays, and active loads.

Features

The S-13R1F1J-A4T2U3 voltage regulator provides the following features: • Low dropout voltage• Wide input voltage range (2.1V - 17V)• Low noise (1.25 μVrms)• Output voltage accuracy of ±2%• High reverse current protection• Wide temperature range (-55°C to +125°C)

Working Principle

The S-13R1F1J-A4T2U3 voltage regulator works on the concept of negative feedback. It uses an error amplifier to compare the reference voltage with the output voltage. The difference between these two voltages is the "error" signal which is amplified and then sent to the control circuitry. This signal acts as the input to the control circuitry which adjusts the output voltage so as to minimize the "error" signal. This process is constantly repeated and is known as negative feedback. The output voltage of the device is adjusted until the error signal is minimized. The output voltage of the regulator system is maintained at a constant level regardless of changing load or input voltage conditions. The converter has excellent transient response and output voltage accuracy. In order to obtain maximum accuracy, the reference voltage is set to a predetermined level by the control circuitry. This reference voltage is then compared with the output voltage and the error signal is then amplified and sent to the control circuitry.

Conclusion

The S-13R1F1J-A4T2U3 is a linear voltage regulator with excellent power performance and low output noise, suitable for automotive applications. It is designed to work in a wide variety of automotive, computer, and device applications. Its features include low dropout voltage, wide input voltage range, low noise, output voltage accuracy of ±2%, high reverse current protection, and wide temperature range. The regulation system works on the concept of negative feedback and the output voltage is maintained at a constant level regardless of changing load or input voltage conditions.

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