S-1333C21-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-1333C21-A4T2U3 is a linear voltage regulator from the PMIC Voltage Regulators family, specifically designed to maintain an efficient and stable power supply. It is suitable for applications with limited space in distributed power systems, or high ambient temperature where a switching regulator cannot be used. This device is also intended for inner component protection in digital and analog circuits, protecting them from over-voltage as well as keeping them supplied with a steady voltage for optimal performance.

Application Field

There are a wide range of applications areas that make use of S-1333C21-A4T2U3 voltage regulator. It is ideal for automotive components, low-power drivers, high power regulators, buck-boost converters, Voltage drops, load shedding and protection circuits, current limiting, over-current protection, gate driving circuits, low dropout regulation, as well as systems requiring linear regulation, like continuous current regulators and RF Power amplifiers.In the automotive industry, S-1333C21-A4T2U3 can be seen deployed in automotive lighting, car audio equipment, fuel metering and control, power steering lock & unlock systems, engine control, and HID systems.Low-power drivers usage of the voltage regulator include portable and battery powered devices, smartcard readers, contactless token readers, and digital camera systems. Its high power applications are ideal for LED lighting systems, digital projectors and power amplifier circuits.

Working Principle

S-1333C21-A4T2U3 is based on a linear voltage regulator technology. This technology is powered through an input voltage, which is then regulated to a constant output voltage by a pass transistor of a certain size. This allows the output voltage to remain constant and the circuit to have an excellent load regulation and output accuracy.The linear regulator is designed to operate with a wide input voltage range, allowing it to be used in many different types of applications. Its input voltage can range from 2.0V to 10V, with a maximum output current of 3A and a power dissipation of 3W.Apart from the input, output and power dissipation, the S-1333C21-A4T2U3 benefits from noise suppression. This is done by an internal EMI filter, which helps reduce conducted radiations in switching power supplies and helps maintain a stable and reliable performance of the regulator.

Conclusion

S-1333C21-A4T2U3 is a linear voltage regulator specifically designed to maintain a stable and constant output voltage in distributed power systems, low-power and high-power drivers, LED lighting systems, digital projectors and a range of automotive applications. The internal EMI filter helps reduce conducted radiations, allowing the regulator to maintain an optimal performance. It has a wide voltage range, with a maximum output current of 3A, a power dissipation of 3W and excellent load regulation, which make it a versatile and reliable option for many applications.

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