LM3525M-H/NOPB

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulator

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

Package: SOT-23-5

Essence: The LM3525M-H/NOPB is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The LM3525M-H/NOPB is available in a SOT-23-5 package and is typically sold in reels of 3000 units.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 45µA
• Output Current: Up to 200mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM3525M-H/NOPB has the following pin configuration:

____ EN | | VOUT GND| | VIN NC |____| FB

• EN: Enable Pin
• VOUT: Output Voltage Pin
• GND: Ground Pin
• VIN: Input Voltage Pin
• FB: Feedback Pin

Functional Features

• Low Dropout Voltage: The LM3525M-H/NOPB has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The IC consumes very low quiescent current, making it suitable for battery-powered applications where power efficiency is crucial.
• Adjustable Output Voltage: The output voltage can be adjusted within a wide range, providing flexibility for different applications.
• Overcurrent Protection: The IC incorporates overcurrent protection to prevent damage to the device and connected components in case of excessive current flow.
• Thermal Shutdown Protection: The LM3525M-H/NOPB includes thermal shutdown protection, which shuts down the device if the temperature exceeds a safe operating limit.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation even with low input voltages. - Adjustable output voltage allows for versatile application compatibility. - Overcurrent and thermal shutdown protection enhance device and system reliability.

Disadvantages: - Limited output current capacity may not be suitable for high-power applications. - SOT-23-5 package may require additional space on the PCB compared to smaller packages.

Working Principles

The LM3525M-H/NOPB is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the feedback voltage (FB) with a reference voltage to adjust the pass transistor's resistance and maintain a stable output voltage. The enable pin (EN) controls the operation of the regulator, allowing it to be turned on or off as needed.

Detailed Application Field Plans

The LM3525M-H/NOPB is commonly used in various electronic devices and systems, including but not limited to: - Battery-powered portable devices - Mobile phones - Tablets - Digital cameras - Portable audio players

Detailed and Complete Alternative Models

Some alternative models to the LM3525M-H/NOPB include: - LM1117-ADJ: Adjustable Linear Voltage Regulator - LP2985-33DBVR: Low Dropout Voltage Regulator - MCP1702-3302E/TO: Low Quiescent Current LDO Regulator - TPS79633DCQR: High PSRR, Low Dropout Voltage Regulator

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

In conclusion, the LM3525M-H/NOPB is a voltage regulator IC that provides stable output voltage for various electronic devices. Its low dropout voltage, adjustable output voltage, and built-in protection features make it suitable for battery-powered applications. However, its limited output current capacity and package size may restrict its use in high-power applications or space-constrained designs.