RT9073A-25GQZ Integrated Circuits (ICs)

Voltage Dropout (Max):	0.6V @ 250mA
Supplier Device Package:	4-ZQFN (1x1)
Package / Case:	4-XDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	75dB (1kHz)
Current - Quiescent (Iq):	3µA
Current - Output:	250mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.5V
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 RT9073A-25GQZ is a integrated high accuracy linear voltage regulator designed for low power applications. It is a complete solution for basic voltage regulation and offers excellent performance in terms of accuracy, transient response, and load/line regulation when compared to traditional linear regulators. It also features low operating current, low dropout voltage, low noise, and a wide range of operating temperature.

Applications

The RT9073A-25GQZ can be used in a wide range of applications, such as personal computers, networking systems, embedded systems, automotive systems, communication equipment, consumer electronics, and medical devices. Its main application is to provide an accurate, regulated output voltage to the system. It can be used in many different circuits, including DC-DC converter circuits, low dropout (LDO) regulator circuits, and voltage follower circuits. Additionally, it can be used to provide power to a microcontroller, buffer a signal, or provide a boost converter supply to reduce power consumption and reduce output noise.

Features

The RT9073A-25GQZ is a high accuracy linear voltage regulator, offering excellent performance in terms of accuracy, transient response and load/line regulation. Its features include:- Low operating current: 5mA typical- Low dropout voltage: 0.1V @ 300mA and 0.2V @ 7.5mA- Low noise: 35μVRMS @ 500mA load- Wide operating temperature: -20°C to 125°C- Output voltage accuracy: ±1% (typical)- Line regulation: 50mV/V- Load regulation: 0.1%- Maximum output current: 300mA.

Pinout Configuration

The RT9073A-25GQZ has a total of 8 pins, which are arranged in a 2x4 pin layout. The pins can be divided into two groups: the input/output pins (VIN, VOUT), and the control/regulation pins (FB, EN, SGND).

Working Principle

The RT9073A-25GQZ is basically a linear voltage regulator with a differential amplifier configuration. It works by comparing the voltage on the FB pin (which is derived from the output voltage) with a reference voltage; if the FB voltage is lower, then it increases the output voltage, and if the FB voltage is higher, then it decreases the output voltage. This process is called regulation, and it ensures that the output voltage is always kept within a certain range. Additionally, the EN pin can be used to enable or disable the circuit, while the SGND pin is the ground reference for all the other pins.

Conclusion

In conclusion, the RT9073A-25GQZ is an integrated high accuracy linear voltage regulator, offering excellent performance in terms of accuracy, transient response, and load/line regulation. It can be used in a wide range of applications, such as personal computers, networking systems, embedded systems, automotive systems, communication equipment, consumer electronics, and medical devices. It works by comparing the voltage on the FB pin with a reference voltage and then adjusting the output voltage accordingly. It is a great choice for low power applications due to its low operating current, low dropout voltage, low noise, and wide operating temperature.

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