S-1312C33-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, Thermal Shutdown
Control Features:	Enable
PSRR:	65dB (1kHz)
Current - Supply (Max):	30µA
Current - Quiescent (Iq):	1µA
Series:	S-1312
Voltage Dropout (Max):	0.27V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
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

The S-1312C33-A4T2U3 is a three-terminal linear regulator IC (Integrated Circuit) designed for use in PMIC (Power Management IC) VoltageRegulation applications. Its features and specifications make it ideal for regulating currents and voltages in a wide range of electronic devices, from consumer electronics to industrial machines. This article will cover the application field and working principle of the S-1312C33-A4T2U3.

Application Field

The S-1312C33-A4T2U3 is mainly used for precision voltage regulation applications in consumer electronics, industrial machines, and other electronic devices. It is functional even in high temperatures and enables continuous output current up to 1A. It also has high temperature stability, making it suitable for temperature-sensitive applications.The S-1312C33-A4T2U3 is a higher power-end regulator, meaning it can regulate high input voltages while providing a low dropout voltage. It can providea low noise and high PSRR (Power Supply Rejection Ratio). It alsofeaturesshort-circuit protection, over-temperature protection, over-voltage protection and under-voltage protection.

Working Principle

The S-1312C33-A4T2U3 uses a linear regulator to regulate incoming voltages to keep them within the specified range. It uses a pass transistor to draw current from the incoming voltage source and an error amplifier to compare the output voltage to the input voltage.The output voltage is determined by the reference voltage and the error amplifier, allowing a stable voltage output to be maintained. The output voltage can also be adjusted using an external resistor. Additionally, the feedback loop ensures that the output voltage is automatically adjusted if the input voltage changes. The internal multiplier of the error amplifier allows for a wide input voltage range and an adjustable output voltage.

Conclusion

The S-1312C33-A4T2U3 is a three-terminal linear regulator IC designed for PMIC Voltage Regulation applications in consumer electronics, industrial machines and other electronic devices. It is capable of providing a low noise and high PSRR, and features short-circuit protection, over-temperature protection, over-voltage protection and under-voltage protection. It uses a linear regulator and pass transistor to regulate incoming voltages, and an adjustable output voltage can obtained by using an external resistor.

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