RT9025-25GSP

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 RT9025-25GSP is a linear voltage regulator from Richtek Technology Corporation, a company that designs and manufactures a wide range of analog, mixed-signal and power management semiconductor solutions for personal computing, communications, consumer electronics and automotive applications. The RT9025-25GSP is a low-power linear voltage regulator that provides constant voltage voltage output and supports output current up to 25mA. It is designed to regulate the input supply with a maximum dropout voltage of 50mV, while providing excellent settling accuracy along with low quiescent current.

Features and Benefits

The RT9025-25GSP features a wide input voltage range from 2.2 to 6.0V, and an adjustable output voltage from 0.8V to 6.0V. It has a low dropout voltage of only 50mV, yielding excellent power efficiency, and a minimum quiescent current of 300nA. It also features a fast response time of 10µs, which is particularly useful for transient regulation, such as USB power applications. In addition, it includes short-circuit protection, a current limiting function and thermal shutdown protection, making it well-suited for various consumer electronics applications.

Application Field

The RT9025-25GSP can be used in a wide range of consumer electronic applications, such as USB power supplies, portable electronics and wearable devices. It can also be used as a voltage regulator in automotive applications. It is well-suited for automotive applications where a precise output voltage and extremely low quiescent current are needed, such as those found in power steering applications and backup cameras.

Working Principle

The RT9025-25GSP is a linear voltage regulator, which in simple terms means that it adjusts the output voltage and current of a power supply according to a precise reference voltage. It is a two-terminal device, with the input terminal (analogous to a battery) on the left side and the output terminal (analogous to an electrical device) on the right side. The device works by comparing the potential difference between the input and output terminals. If the output is higher than the input, the regulator reduces the current, if the output is lower than the input, the regulator increases the current. This careful control of current keeps the voltage regulated and helps protect devices from damage due to overvoltage. By design, the RT9025-25GSP is protected from over temperature conditions and can shut itself down if necessary.

Conclusion

The RT9025-25GSP is an economical and robust linear voltage regulator with a wide input voltage range, adjustable output voltage and fast response time. Its low quiescent current and over temperature protection make it ideal for consumer electronic and automotive applications. In summary, the RT9025-25GSP is a high-performance, cost-effective linear regulator solution for any application where precise and reliable input voltage regulation is required.

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