LTC3025EDC-3#TRMPBF

Voltage Dropout (Max):	0.185V @ 500mA
Package / Case:	6-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	Enable
PSRR:	--
Current - Quiescent (Iq):	80µA
Current - Output:	500mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.5V
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 LTC3025EDC-3#TRMPBF is a low-current, low-voltage linear regulator designed for cost-sensitive applications such as automotive and portable electronics. It is a current-mode, fixed voltage also known as a "linear" regulator. It is composed of an op amp and pass transistor which regulate and limit current draw, an input capacitor, and an output capacitor.

Working Principle

A linear regulator is a type of voltage regulator used in electronic circuits. It maintains a constant output voltage regardless of load and input voltage. An ideal linear regulator can maintain a perfect voltage output with no power wasted as heat.The LTC3025EDC-3#TRMPBF linear regulator is a two-stage regulator. In the first stage, the op amp monitors the output voltage, compares it to its reference voltage and adjusts the gate voltage of the pass transistor in order to maintain the desired output voltage. At the next stage, the pass transistor controls the current flow from the input of the regulator to the output, thereby limiting the output current.The regulator also features a soft-start feature which limits the inrush current on power up and reduces the current limiting region of the output.

Applications

The LTC3025EDC-3#TRMPBF linear regulator is widely used in automotive and portable electronics applications. It can be used in applications such as automotive battery management, automotive lighting, chargers, portable audio/video equipment, and RF modules.Due to its small size, low current draw, high efficiency, and low dropout, this type of linear regulator is ideal for powering devices that need to draw only small amounts of power. Its small size and low voltage drop also makes it suitable for battery-powered applications. Furthermore, since it eliminates the need for external compensation, it is simple to use.

Conclusion

The LTC3025EDC-3#TRMPBF linear regulator is an ideal choice for low-current applications that require a low dropout and high efficiency. It is widely used in automotive and portable electronics applications, and has features such as soft-start and current limiting. Its small size and low input and output voltages make it suitable for battery-powered devices. With its simple design and lack of external compensation, it is simple and easy to use.

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