SIP21107DR-25-E3

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - Low Dropout Voltage Regulator - Fixed Output Voltage of 2.5V - High Accuracy and Stability - Low Quiescent Current - Thermal Shutdown Protection

Package: SIP (Single In-line Package)

Essence: The SIP21107DR-25-E3 is a low dropout voltage regulator IC designed for power management applications.

Packaging/Quantity: The SIP21107DR-25-E3 is available in a standard SIP package. It is typically sold in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 2.5V
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 50µA (typical)
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The SIP21107DR-25-E3 has the following pin configuration:

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| | --| VIN GND |-- Pin 1 --| VOUT NC |-- Pin 2 |___________| ```

Pin 1: VIN (Input Voltage) - Connects to the input voltage source. Pin 2: VOUT (Output Voltage) - Provides the regulated output voltage. Pin 3: NC (No Connection) - Unused pin, should be left unconnected.

Functional Features

• Low Dropout Voltage: The SIP21107DR-25-E3 exhibits a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Accuracy and Stability: The IC provides a fixed output voltage of 2.5V with high accuracy and stability over a wide range of operating conditions.
• Low Quiescent Current: The quiescent current is minimal, resulting in efficient power management and extended battery life.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection to prevent damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures stable output even with low input voltage. - High accuracy and stability provide reliable performance. - Low quiescent current for efficient power management. - Thermal shutdown protection prevents overheating and damage.

Disadvantages: - Limited output current capacity (up to 100mA). - Fixed output voltage may not be suitable for all applications requiring variable voltages.

Working Principles

The SIP21107DR-25-E3 operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. When the input voltage exceeds the desired output voltage plus the dropout voltage, the pass transistor remains fully on, providing a regulated output voltage. As the input voltage approaches the desired output voltage, the pass transistor starts to turn off, reducing the voltage drop and maintaining a stable output voltage.

Detailed Application Field Plans

The SIP21107DR-25-E3 is commonly used in various applications that require a stable and regulated 2.5V power supply. Some typical application fields include:

1. Battery-Powered Devices: Portable electronic devices such as smartphones, tablets, and wearable devices often require a low dropout voltage regulator to ensure stable operation while maximizing battery life.

2. Industrial Control Systems: The IC can be used in industrial control systems to regulate power supply voltages for sensors, actuators, and other components.

3. Automotive Electronics: In automotive applications, the SIP21107DR-25-E3 can be used to provide a stable power source for various electronic modules, such as infotainment systems, navigation units, and lighting control.

4. IoT Devices: Internet of Things (IoT) devices often require low-power voltage regulators to ensure efficient operation and extend battery life. The SIP21107DR-25-E3 is suitable for powering IoT sensors, communication modules, and microcontrollers.

Detailed and Complete Alternative Models

1. SIP21107DR-33-E3: Similar to the SIP21107DR-25-E3, but with a fixed output voltage of 3.3V.
2. SIP21107DR-50-E3: Similar to the SIP21107DR-25-E3, but with a fixed output voltage of 5.0V.
3. SIP21107DR-ADJ-E3: Adjustable output voltage version of the SIP21107DR series, allowing users to set the desired output voltage within a specified range.

These alternative models offer similar functionality but with different fixed or adjustable output voltages to suit specific application requirements.

In conclusion, the SIP21107DR-25-E3 is