S-1335E33-A4T2U3 Integrated Circuits (ICs)

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, Soft-Start
Control Features:	Enable
PSRR:	80dB ~ 65dB (1kHz ~ 10kHz)
Current - Supply (Max):	54µA
Current - Quiescent (Iq):	1µA
Series:	S-1335
Voltage Dropout (Max):	0.103V @ 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 PMIC S-1335E33-A4T2U3 is a type of linear voltage regulator. It is an integrated circuit (IC) that stabilizes the output voltage of a power supply, as well as providing temperature protection and power sequencing. It is a low-dropout (LDO) regulator, meaning it is able to maintain a stable output even with unregulated input voltage. This makes the regulator ideal for applications like portable electronics and small motor controls.

Application Field

The S-1335E33-A4T2U3 is primarily used in applications that require regulated power. This includes a wide range of devices, such as LED drivers, automotive electronic systems, integrated circuits for microcontrollers, and medical instruments. Other applications include telecommunications systems, motion control, and portable electronics.The S-1335E33-A4T2U3 is an ideal choice for a wide range of applications due to its low dropout voltage. A low dropout voltage means that the regulator is able to maintain output voltage even with an input voltage that is lower than the rated voltage. This allows for a wide range of input voltages without compromising performance.

Working Principle

When the circuit is first powered, the internal electronics adjust the output voltage according to the voltage present on the output pins. Once set, the regulator maintains this output voltage regardless of changes in the load or input voltage.To maintain regulation, the S-1335E33-A4T2U3 uses a voltage reference that is connected to an externally adjustable voltage source. This voltage source is used to set the device\'s output voltage. The regulator then continuously compares the output voltage with the reference voltage. If the output voltage rises higher than the reference, the regulator decreases the voltage by placing a varying current load onto the output pins. Conversely, if the output voltage falls below the reference, the regulator increases the voltage by placing a varying current load onto the output pins.

Protection Features

In addition to its voltage regulation capabilities, the S-1335E33-A4T2U3 also offers several protection features. These include over-current protection, thermal sensing, and power sequencing. Over-current protection ensures the regulator does not overload by turning off the device when the current draw is higher than the rated current. Thermal sensing prevents the device from overheating by automatically reducing the output voltage when the internal temperature exceeds a certain point. Power sequencing ensures the proper voltage is applied to the power rails in the right order.

Conclusion

The S-1335E33-A4T2U3 is a low-dropout linear voltage regulator that can be used in a wide range of applications, ranging from LED drivers to medical instruments. It provides a regulated power supply and is capable of maintaining a stable output even with fluctuating input voltage. It also includes several protection features to prevent overloads, overheating, and improper power sequencing. Overall, it is an ideal choice for applications that require regulated power.

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