RT9742CGJ5

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: SOT-23-5
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel / 3000 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 1.2V to 3.6V
• Maximum Output Current: 300mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 30µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9742CGJ5 is a 5-pin device with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. FB: Feedback Pin
5. VOUT: Output Voltage

Functional Features

• Low Dropout Voltage: The RT9742CGJ5 exhibits a low dropout voltage of only 200mV at 100mA output current, ensuring efficient power delivery.
• Low Quiescent Current: With a quiescent current of only 30µA, the IC minimizes power consumption during standby or idle modes.
• Thermal Shutdown Protection: The device incorporates thermal shutdown protection, preventing damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Small package size - Low power consumption

Disadvantages: - Limited maximum output current (300mA)

Working Principles

The RT9742CGJ5 is a voltage regulator that maintains a stable output voltage regardless of fluctuations in the input voltage. It achieves this by using an internal reference voltage and feedback mechanism. The enable pin (EN) allows the user to control the device's operation, while the feedback pin (FB) provides a means for adjusting the output voltage.

Detailed Application Field Plans

The RT9742CGJ5 is commonly used in various applications, including: 1. Battery-powered devices: It efficiently regulates the voltage for portable electronic devices such as smartphones, tablets, and wearables. 2. IoT devices: The IC is suitable for low-power IoT applications that require stable power supply. 3. Industrial equipment: It can be utilized in industrial automation systems, sensors, and control circuits.

Detailed and Complete Alternative Models

1. RT9742CGJ6: Similar to RT9742CGJ5 but with a higher maximum output current of 500mA.
2. RT9742CGJ4: Similar to RT9742CGJ5 but with a lower dropout voltage of 100mV at 100mA.

Please note that these alternative models may have slightly different specifications and pin configurations.

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