S-1333D21-A4T2U3

Current - Output:	300mA
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, Thermal Shutdown
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	38µA
Current - Quiescent (Iq):	1µA
Series:	S-1333
Voltage Dropout (Max):	0.36V @ 100mA
Voltage - Output (Max):	5.5V
Voltage - Output (Min/Fixed):	2.1V
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

S-1333D21-A4T2U3 is a voltage regulator. It belongs to the family of linear voltage regulators, which are present in the PMIC (Power Management Integrated Circuit) architecture. Broadly, voltage regulators are devices which take in a higher input voltage, and output a precisely regulated lower voltage. They are used in many different industries and applications, ranging from automotive to telecommunications to industrial.

Applications

Various applications of linear voltage regulators include powering logic circuits, portable devices, batteries, LED drivers, set-top boxes, and other electronics. The S-1333D21-A4T2U3 device is typically intended for use in 5V high current DC/DC regulated power supplies. Its operational voltage range covers from ≥1V to 17V. This device has high instant load current performance with wide temperature range, and which makes the S-1333D21-A4T2U3 suitable for a variety of applications, such as computer and peripheral equipment, digital devices, electronic office, cellular phones, and electronic instruments.

Working Principle

The S-1333D21-A4T2U3 voltage regulator operates on the simple principle that the output voltage is precisely adjusted to the voltage reference voltage by comparing the voltage reference voltage and the output voltage. The S-1333D21-A4T2U3 voltage regulator includes an input voltage, a reference voltage, an error amplifier and a series pass transistor. The input voltage is passed through the series pass transistor, and the reference voltage is compared to the output voltage using an error amplifier. If the error amplifier difference voltage is larger than a certain value, the transistor will be turned on, increasing or decreasing current through the output circuitry, thereby changing the output voltage. The S-1333D21-A4T2U3 voltage regulator also includes a voltage reference and several protection circuits such as thermal shutdown, over current protection, and reverse current protection. This allows the device to accurately regulate the voltage over a wide range of input voltages and current load conditions.

Advantages

The S-1333D21-A4T2U3 voltage regulator offers many advantages over other voltage regulator solutions. It can operate over a wide temperature range, in an environment where temperature stability is critical. It has high current rating, making it well-suited for many high current applications such as motor controllers and LED drivers. Additionally, the S-1333D21-A4T2U3 voltage regulator has low power consumption, making it an ideal choice for applications where long battery life is desired. It also has reverse current protection and thermal shutdown protection, making it one of the most reliable voltage regulator solutions available today.

Conclusion

The S-1333D21-A4T2U3 voltage regulator is a versatile and reliable device that is well-suited for a variety of applications. It operates in a wide temperature range, and has a high current rating. Additionally, the device has a low power consumption, reverse current protection, and thermal shutdown protection, making it one of the most reliable voltage regulator solution today.

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