RT9193-25GU5

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short circuit current limit - Overcurrent protection - Reverse battery protection

Package: SOT-23-5

Essence: The RT9193-25GU5 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 RT9193-25GU5 is available in a SOT-23-5 package, which consists of a small plastic body with five leads. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V - 6V
• Output Voltage Range: 1.2V - 5.5V
• Dropout Voltage: 300mV at 150mA
• Output Current: Up to 150mA
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9193-25GU5 has five pins arranged as follows:

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Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: EN (Enable) Pin 4: NC (No Connection) Pin 5: VOUT (Output Voltage)

Functional Features

1. Low Dropout Voltage: The RT9193-25GU5 exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
2. High Output Current Capability: With a maximum output current of 150mA, this voltage regulator can handle various loads and provide stable power supply to the connected components.
3. Adjustable Output Voltage: The output voltage can be adjusted within the range of 1.2V to 5.5V, allowing flexibility in different applications.
4. Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive heat by shutting down the regulator when the temperature exceeds a certain threshold.
5. Short Circuit Current Limit: In case of a short circuit, the RT9193-25GU5 limits the output current to protect both the regulator and the connected circuitry.
6. Overcurrent Protection: The IC also features overcurrent protection, safeguarding against excessive current flow that could potentially damage the device or connected components.
7. Reverse Battery Protection: The RT9193-25GU5 is designed to withstand reverse polarity connection, preventing any damage caused by accidental reverse battery insertion.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - Adjustable output voltage for versatile applications - Thermal shutdown protection prevents overheating - Short circuit and overcurrent protection enhance reliability - Reverse battery protection safeguards against reverse polarity connection

Disadvantages: - Limited maximum output current (150mA) - Not suitable for high-power applications

Working Principles

The RT9193-25GU5 operates as a linear voltage regulator. It regulates the output voltage by comparing the reference voltage with the feedback voltage obtained from a resistive voltage divider connected to the output. By adjusting the resistance ratio, the desired output voltage can be set within the specified range. The internal circuitry ensures stable regulation even with varying input voltages and load conditions.

Detailed Application Field Plans

The RT9193-25GU5 finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Communication equipment - Industrial control systems - Automotive electronics - Medical devices

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with a fixed output voltage of 3.3V.
2. LT1763: Offers adjustable output voltage with low dropout and high output current capability.
3. MCP1700: Low-cost alternative with fixed output voltage options.

These alternative models provide similar functionality and can be considered based on specific requirements and design constraints.

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