RT9819D-30GV

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Wide input voltage range - Adjustable output voltage - Thermal shutdown protection - Short circuit current limit

Package: SOT-23-5

Essence: The RT9819D-30GV is a voltage regulator IC that provides a stable output voltage with low dropout. It is commonly used in various electronic devices to regulate and stabilize the voltage supply.

Packaging/Quantity: The RT9819D-30GV is typically packaged in reels or tubes, containing a quantity of 3000 units per reel/tube.

Specifications

Input Voltage Range: 2.5V - 6V
Output Voltage: 3.0V
Dropout Voltage: 200mV @ 100mA
Output Current: Up to 300mA
Quiescent Current: 50µA
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9819D-30GV has a standard SOT-23-5 package with the following pin configuration:

VIN (Input Voltage)
GND (Ground)
NC (No Connection)
VOUT (Output Voltage)
EN (Enable)

Functional Features

Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
High output current capability allows it to power a wide range of electronic components.
Wide input voltage range makes it suitable for various applications.
Adjustable output voltage allows flexibility in different circuit designs.
Thermal shutdown protection prevents damage due to excessive heat.
Short circuit current limit protects the IC and connected components from excessive current flow.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High output current capability allows it to handle demanding loads. - Wide input voltage range provides versatility in different applications. - Adjustable output voltage offers flexibility in circuit design. - Thermal shutdown protection prevents damage from overheating. - Short circuit current limit protects the IC and connected components.

Disadvantages: - Limited output voltage options (fixed at 3.0V). - SOT-23-5 package may require additional space on the PCB.

Working Principles

The RT9819D-30GV is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by using a low resistance pass transistor.

Detailed Application Field Plans

The RT9819D-30GV is widely used in various electronic devices, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Wireless communication devices - Digital cameras - Industrial control systems

Detailed and Complete Alternative Models

RT9819D-33GV: Output voltage of 3.3V
RT9819D-25GV: Output voltage of 2.5V
RT9819D-50GV: Output voltage of 5.0V
RT9819D-ADJGV: Adjustable output voltage version

These alternative models provide different output voltage options to suit specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací RT9819D-30GV v technických řešeních

Sure! Here are 10 common questions and answers related to the application of RT9819D-30GV in technical solutions:

Q: What is RT9819D-30GV? A: RT9819D-30GV is a voltage regulator IC (Integrated Circuit) that provides a fixed output voltage of 3.0V.
Q: What is the input voltage range for RT9819D-30GV? A: The input voltage range for RT9819D-30GV is typically between 2.5V and 5.5V.
Q: What is the maximum output current of RT9819D-30GV? A: The maximum output current of RT9819D-30GV is typically 300mA.
Q: Can RT9819D-30GV be used in battery-powered applications? A: Yes, RT9819D-30GV can be used in battery-powered applications as it has a low dropout voltage and operates efficiently with low input voltages.
Q: Is RT9819D-30GV suitable for use in automotive applications? A: Yes, RT9819D-30GV is suitable for use in automotive applications as it meets the required automotive standards and has a wide operating temperature range.
Q: Does RT9819D-30GV have built-in protection features? A: Yes, RT9819D-30GV has built-in protection features such as overcurrent protection, thermal shutdown, and reverse current protection.
Q: Can RT9819D-30GV be used in both step-up and step-down voltage conversion applications? A: No, RT9819D-30GV is a linear voltage regulator and can only be used for step-down voltage conversion.
Q: What is the typical dropout voltage of RT9819D-30GV? A: The typical dropout voltage of RT9819D-30GV is around 200mV at 100mA load.
Q: Can RT9819D-30GV be used in high-frequency switching applications? A: No, RT9819D-30GV is not suitable for high-frequency switching applications as it is a linear regulator and operates at a fixed frequency.
Q: Is RT9819D-30GV available in different package options? A: Yes, RT9819D-30GV is available in various package options such as SOT-23, SOT-89, and DFN to suit different application requirements.

Please note that the answers provided here are general and may vary depending on the specific datasheet and application guidelines for RT9819D-30GV.