RT9025-25ZSP

Voltage Dropout (Max):	0.3V @ 2A
Supplier Device Package:	8-SOP-EP
Package / Case:	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Power Good
PSRR:	--
Current - Quiescent (Iq):	1.2mA
Current - Output:	2A
Series:	--
Voltage - Output (Max):	5.5V
Voltage - Output (Min/Fixed):	0.8V (2.5V)
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Adjustable (Fixed)
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The RT9025-25ZSP is a low-dropout linear voltage regulator, designed to efficiently regulate the output voltage of AC-DC or DC-DC converters. This device integrates all the features of a complete voltage regulation system, including current limit, thermal protection, over-voltage protection, and transient suppression. It is specifically developed with the goal of reducing the amount of external components required, while providing a reliable and efficient voltage regulation solution.

Application Field

The RT9025-25ZSP is primarily used for power supply applications, such as for regulating the output voltage of an AC-DC or DC-DC converter. It is also suitable for use in low-noise power supplies, such as the portable electronic devices, LED lighting solutions, and other applications where a low dropout linear regulator is desired.

Features

The RT9025-25ZSP has a wide range of features that make it a reliable and efficient power supply solution. It has an ultra-low dropout voltage of 0.25V, a low quiescent current of 2mA, and an adjustable output voltage range of 0.75V to 18V. Its ultra-low quiescent current helps ensure that the device never draws more power than specified on the input power supply. It also has a current limit of up to 2A and a thermal shutdown temperature of +150°C, providing protection against overload and thermal events.

Working Principle

The RT9025-25ZSP works by regulating the output voltage through a series of feedback circuits. The voltage regulator controller features an internal error amplifier, which compares the input and output voltages. When the output voltage is below the set point, the error amplifier increases the output current, which in turn increases the output voltage. When the output voltage is above the set point, the error amplifier reduces the output current, which in turn reduces the output voltage. The output voltage is also protected from external transients by the internal voltage clamp, which keeps the output voltage within a defined range. This ensures that any voltage move caused by a transient is limited to a safe level that won\'t damage the load or other components connected to the output voltage.

Conclusion

The RT9025-25ZSP is a great choice for power supply applications that require reliable and efficient voltage regulation. Its low quiescent current, adjustable output voltage range, and internal voltage clamp make it a great choice for such applications. It is also highly versatile, and is suitable for use in a range of other applications.

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