LM3502ITL-25/NOPB

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulator

Characteristics: - Output Voltage: 2.5V - Package Type: SOT-23 - Operating Temperature Range: -40°C to +125°C - Input Voltage Range: 2.7V to 6V - Output Current: 100mA - Dropout Voltage: 300mV at 100mA - Line Regulation: 0.02%/V - Load Regulation: 0.1% - Quiescent Current: 85µA

Package: SOT-23

Essence: The LM3502ITL-25/NOPB is a low dropout voltage regulator IC that provides a fixed output voltage of 2.5V. It is designed for applications where a stable and regulated power supply is required.

Packaging/Quantity: The LM3502ITL-25/NOPB is available in a SOT-23 package. It is typically sold in reels of 3000 units.

Specifications

• Output Voltage: 2.5V
• Input Voltage Range: 2.7V to 6V
• Output Current: 100mA
• Dropout Voltage: 300mV at 100mA
• Line Regulation: 0.02%/V
• Load Regulation: 0.1%
• Quiescent Current: 85µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23

Detailed Pin Configuration

The LM3502ITL-25/NOPB has the following pin configuration:

1. GND (Ground)
2. VOUT (Output Voltage)
3. VIN (Input Voltage)

Functional Features

• Low dropout voltage: The LM3502ITL-25/NOPB has a low dropout voltage of 300mV at 100mA, ensuring efficient power conversion.
• Wide input voltage range: It can accept input voltages ranging from 2.7V to 6V, making it suitable for various applications.
• Stable output voltage: The IC provides a fixed output voltage of 2.5V, ensuring a stable power supply.
• Low quiescent current: With a quiescent current of only 85µA, the LM3502ITL-25/NOPB minimizes power consumption.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - Wide input voltage range allows for versatile applications. - Stable output voltage provides a reliable power supply. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited output current of 100mA may not be sufficient for high-power applications. - SOT-23 package may limit heat dissipation in certain scenarios.

Working Principles

The LM3502ITL-25/NOPB is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly to maintain a constant output voltage.

When the input voltage exceeds the desired output voltage plus the dropout voltage, the pass transistor remains fully on, allowing the maximum current flow. As the input voltage decreases, the pass transistor adjusts its resistance to maintain a constant output voltage.

Detailed Application Field Plans

The LM3502ITL-25/NOPB is commonly used in various applications, including but not limited to: - Battery-powered devices - Portable electronics - Embedded systems - IoT devices - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the LM3502ITL-25/NOPB include: - LM317: Adjustable voltage regulator with a wide input voltage range. - LM1117: Fixed voltage regulator available in various output voltages. - LT1763: Low dropout voltage regulator with high output current capability.

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

In conclusion, the LM3502ITL-25/NOPB is a low dropout voltage regulator IC that provides a stable and regulated 2.5V output voltage. It offers advantages such as low dropout voltage, wide input voltage range, stable output voltage, and low quiescent current. However, it has limitations in terms of output current and package heat dissipation. The IC operates by comparing reference and feedback voltages to maintain a constant output voltage. It finds applications in battery-powered devices, portable electronics, embedded systems, IoT devices, and consumer electronics. Alternative models like LM317, LM1117, and LT1763 can be considered based on specific requirements.