LT1521CS8#PBF

Current - Output:	300mA
Base Part Number:	LT1521
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	58dB (120Hz)
Current - Supply (Max):	12mA
Current - Quiescent (Iq):	25µA
Series:	--
Voltage Dropout (Max):	0.75V @ 300mA
Voltage - Output (Max):	20V
Voltage - Output (Min/Fixed):	3.8V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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LT1521CS8#PBF PMIC - Voltage Regulators - Linear Application Field and Working Principle

LT1521CS8#PBF is a member of the linear voltage regulator family, utilizing low-voltage MOSFETs to regulate the output voltage from an input power source. It is designed to provide precise output voltages of up to 3.2V and highly efficient operation. It is mainly used in medical equipment, industrial control, power switch systems and other applications that require precise and efficient power conversion.

Working Principle

The LT1521CS8#PBF regulator features a linear control architecture, which is designed to adjust the output voltage by controlling the resistance of a low-voltage MOSFET. It contains an error amplifier, which monitors the output voltage and modulates the gate-to-source voltage of the low-voltage MOSFET in order to adjust it for the desired output. The regulator also features a switching mode controller, which provides a constant on-time control. It is designed to reduce switching losses and improve efficiency. The error amplifier is an important part of the regulator, as it is responsible for monitoring the output voltage and adjusting the resistance of the MOSFET accordingly. The error amplifier is connected to the sense resistor, which monitors the output voltage. The error amplifier compares the output voltage to the reference voltage and adjusts the resistance of the MOSFET to match the output voltage to the reference voltage.The switching mode controller is another important part of the regulator. This controller monitors the output voltage and modulates the switching frequency and on-time of the MOSFET to maintain efficient operation. The switching mode controller provides a constant on-time control, which reduces switching losses and improves efficiency. The LT1521CS8#PBF regulator is designed with a wide range of adjustable features, such as output voltage and current limiting, as well as thermal protection. These features ensure that the regulator can provide precise and reliable operation in a variety of applications.

Application Field

The LT1521CS8#PBF regulator is designed for a wide range of applications requiring precise and efficient power conversion. It is commonly used in medical equipment, industrial control, power switch systems and other applications that require precise and efficient power conversion.The LT1521CS8#PBF regulator is suitable for a wide range of voltage conversion requirements, such as battery charging and maintaining a stable output voltage. It is also ideal for systems requiring high efficiency, as its low-voltage MOSFET control architecture can achieve up to 95% efficiency. Additionally, the adjustable features, such as output voltage, current limit and thermal protection, can be adjusted according to various application needs.The LT1521CS8#PBF regulator is highly reliable, as it has been designed to pass tests in harsh temperature environments. It has also been designed with low standby current consumption, saving power in applications that are not in use. The regulator is also designed for long-term reliability and is protected against over-voltage, over-current and short circuit conditions.

Conclusion

The LT1521CS8#PBF regulator is a member of the linear voltage regulator family, primarily used in medical equipment, industrial control, and power switch systems, and other applications that require precise and efficient power conversion. Its low-voltage MOSFET control architecture allows for precise regulation, high efficiency and reliable operation. The adjustable features, such as output voltage and current limiting, ensure that the regulator can work optimally for the intended application. The LT1521CS8#PBF regulator is a reliable and suitable choice for voltages conversion needs.

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