TCR4DG35,LF

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulator

Characteristics: - Low Dropout Voltage - High Output Current - Adjustable Output Voltage - Thermal Shutdown Protection

Package: SOT-23-5

Essence: TCR4DG35,LF is a voltage regulator IC that provides a stable output voltage with low dropout voltage and high output current capability. It is commonly used in various electronic devices to regulate the voltage supplied to sensitive components.

Packaging/Quantity: TCR4DG35,LF is available in a SOT-23-5 package, which is a small surface-mount package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV at 100mA
• Output Current: Up to 500mA
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

TCR4DG35,LF has a total of five pins arranged as follows:

```

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| | --| Vout GND |-- Pin 1 --| Vin NC |-- Pin 2 --| EN NC |-- Pin 3 --| Bypass NC |-- Pin 4 --| Vin Vref |-- Pin 5 |___________| ```

Pin 1: Vout - Output Voltage

Pin 2: Vin - Input Voltage

Pin 3: EN - Enable Pin (Active High)

Pin 4: Bypass - Bypass Capacitor Connection (Optional)

Pin 5: Vref - Reference Voltage Output

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.
• Adjustable output voltage provides flexibility in various applications.
• Thermal shutdown protection prevents the IC from overheating and protects it from damage.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient voltage regulation. - High output current capability enables it to power demanding components. - Adjustable output voltage offers versatility in different applications. - Thermal shutdown protection enhances reliability and safeguards against overheating.

Disadvantages: - Limited input voltage range (2.5V to 6.0V). - Quiescent current may be relatively high compared to other voltage regulators.

Working Principles

TCR4DG35,LF operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The enable pin (EN) controls the operation of the regulator, allowing the user to turn it on or off as needed. The reference voltage (Vref) pin provides a stable voltage reference for accurate regulation.

Detailed Application Field Plans

TCR4DG35,LF finds applications in various electronic devices where stable voltage regulation is required. Some common application areas include:

1. Mobile Devices: Used to regulate the voltage supplied to processors, memory, and other components in smartphones, tablets, and portable media players.
2. Wireless Communication Systems: Ensures stable voltage supply to RF modules, transceivers, and other wireless communication components.
3. Industrial Control Systems: Provides regulated voltage for microcontrollers, sensors, and actuators in industrial automation systems.
4. Automotive Electronics: Used in automotive applications such as infotainment systems, engine control units, and lighting systems.
5. Consumer Electronics: Regulates voltage in devices like digital cameras, portable gaming consoles, and audio players.

Detailed and Complete Alternative Models

1. TCR4DG33,LF: Similar to TCR4DG35,LF but with a fixed output voltage of 3.3V.
2. TCR4DG50,LF: Similar to TCR4DG35,LF but with a fixed output voltage of 5.0V.
3. TCR4DGXX,LF (Series): A series of voltage regulator ICs with various fixed output voltages ranging from 1.2V to 5.5V.

These alternative models provide options for different output voltage requirements while maintaining similar characteristics and features as TCR4DG35,LF.

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