RT9020-28GU5

Product Overview

Category

RT9020-28GU5 belongs to the category of voltage regulators.

Use

It is commonly used to regulate voltage in electronic circuits.

Characteristics

• Package: SOT-23-5
• Essence: Low dropout linear regulator
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

The specifications of RT9020-28GU5 are as follows:

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 2.8V
• Dropout Voltage: 200mV at 100mA
• Output Current: 300mA
• Quiescent Current: 60μA
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Ripple Rejection Ratio: 70dB
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The pin configuration of RT9020-28GU5 is as follows:

1. VIN (Input Voltage)
2. GND (Ground)
3. EN (Enable)
4. BYP (Bypass)
5. VOUT (Output Voltage)

Functional Features

• Low dropout voltage for efficient regulation.
• Excellent line and load regulation for stable output voltage.
• Low quiescent current for power-saving applications.
• Built-in thermal shutdown protection.
• Short-circuit current limit protection.

Advantages and Disadvantages

Advantages

• Compact SOT-23-5 package for space-constrained designs.
• Wide input voltage range allows flexibility in various applications.
• High ripple rejection ratio ensures clean output voltage.
• Low dropout voltage minimizes power dissipation.

Disadvantages

• Limited output current of 300mA may not be suitable for high-power applications.
• Operating temperature range may not be suitable for extreme environments.

Working Principles

RT9020-28GU5 is a low dropout linear regulator that regulates the output voltage by maintaining a constant voltage difference between the input and output. It achieves this by using a pass transistor to control the current flow and adjust the output voltage accordingly. The enable pin (EN) allows the user to turn the regulator on or off, while the bypass pin (BYP) provides an optional capacitor to improve stability and transient response.

Detailed Application Field Plans

RT9020-28GU5 can be used in various applications, including but not limited to: - Battery-powered devices - Portable electronic devices - Wireless communication systems - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to RT9020-28GU5 include: - RT9020-28GB: Same specifications, but with a different package (SOT-23-6). - RT9020-28GJ5: Same specifications, but with a different package (SOT-25). - RT9020-28GG5: Same specifications, but with a different package (SOT-89).

These alternative models provide options for different PCB layouts and space requirements.

In conclusion, RT9020-28GU5 is a low dropout linear regulator that offers efficient voltage regulation in a compact package. Its wide input voltage range, excellent line and load regulation, and built-in protection features make it suitable for various applications. However, its limited output current and operating temperature range should be considered when selecting the appropriate voltage regulator for specific requirements.