RT9058-90GVL

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output voltage accuracy - Low quiescent current - Thermal shutdown protection - Short-circuit current limit - Overcurrent protection - Reverse current protection

Package: SOT-23-5

Essence: The RT9058-90GVL 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 maintain a constant voltage level.

Packaging/Quantity: The RT9058-90GVL is typically packaged in reels or tubes, with 3000 units per reel or 1000 units per tube.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 0.9V
• Dropout Voltage: 200mV at 300mA
• Quiescent Current: 45µA
• Output Current: Up to 300mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9058-90GVL has a total of five pins:

1. VIN (Input Voltage): Connects to the power supply voltage.
2. GND (Ground): Connected to the ground reference.
3. EN (Enable): Controls the enable/disable state of the regulator.
4. FB (Feedback): Provides feedback for regulating the output voltage.
5. VOUT (Output Voltage): Outputs the regulated voltage.

Functional Features

• Low Dropout Voltage: The RT9058-90GVL exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High Output Voltage Accuracy: This voltage regulator offers high output voltage accuracy, ensuring a stable and precise output voltage.
• Low Quiescent Current: The low quiescent current minimizes power consumption when the regulator is in standby or idle mode.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection to prevent damage due to excessive temperature.
• Short-Circuit Current Limit: It features short-circuit current limit protection, safeguarding the regulator and connected components from excessive current flow during a short circuit.
• Overcurrent Protection: The RT9058-90GVL includes overcurrent protection, preventing damage caused by excessive output current.
• Reverse Current Protection: This feature prevents reverse current flow from the output to the input, protecting the regulator and other components.

Advantages and Disadvantages

Advantages: - High output voltage accuracy ensures stable performance. - Low dropout voltage allows efficient regulation even with small input-output voltage differentials. - Thermal shutdown protection prevents damage from excessive temperature. - Overcurrent and short-circuit protections enhance reliability and safety.

Disadvantages: - Limited output current capacity (up to 300mA). - Restricted input voltage range (2.5V to 6V).

Working Principles

The RT9058-90GVL operates as a linear voltage regulator. It compares the feedback voltage (FB pin) with a reference voltage to generate an error signal. This error signal is then amplified and used to control the pass transistor, adjusting its resistance to maintain a constant output voltage. By regulating the resistance of the pass transistor, the regulator compensates for changes in the input voltage and load conditions, providing a stable output voltage.

Detailed Application Field Plans

The RT9058-90GVL finds applications in various electronic devices that require a stable and regulated voltage supply. Some common application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players.
2. Wireless Communication Systems: Wi-Fi modules, Bluetooth devices.
3. Battery-Powered Devices: Portable gaming consoles, digital cameras, handheld instruments.
4. Industrial Control Systems: Sensors, actuators, control boards.
5. Automotive Electronics: Infotainment systems, navigation devices, lighting controls.

Detailed and Complete Alternative Models

1. RT9058-33GVL: Output voltage of 3.3V.
2. RT9058-50GVL: Output voltage of 5.0V.
3. RT9058-12GVL: Output voltage of 1.2V.
4. RT9058-25GVL: Output voltage of 2.5V.

These alternative models offer different output voltage options to suit various application requirements while sharing similar characteristics and features with the RT9058-90GVL.

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