LM3526M-L

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: SOIC-8

Essence: The LM3526M-L is a voltage regulator IC that provides a stable output voltage with high efficiency and low dropout voltage. It is commonly used in various electronic devices to regulate the voltage supplied to different components.

Packaging/Quantity: The LM3526M-L is available in a standard SOIC-8 package. Each package contains one LM3526M-L IC.

Specifications

• Input Voltage Range: 2.5V to 7V
• Output Voltage Range: 1.25V to 5.5V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM3526M-L has the following pin configuration:

```

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| | --| EN GND |-- --| FB VIN |-- --| VOUT NC |-- --| VREF NC |-- |___________| ```

• EN: Enable pin, used to turn the regulator on or off.
• FB: Feedback pin, used to set the desired output voltage.
• VIN: Input voltage pin.
• VOUT: Output voltage pin.
• VREF: Reference voltage pin.
• NC: No connection.

Functional Features

• High Efficiency: The LM3526M-L utilizes advanced circuitry to achieve high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: The regulator maintains a low dropout voltage, ensuring stable output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be easily adjusted using an external resistor divider connected to the FB pin.
• Overcurrent Protection: The LM3526M-L incorporates overcurrent protection to prevent damage to the IC and the connected components in case of excessive current flow.
• Thermal Shutdown Protection: In case of excessive temperature rise, the LM3526M-L automatically shuts down to protect itself from thermal damage.

Advantages and Disadvantages

Advantages: - High efficiency operation - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Limited maximum output current (1A)

Working Principles

The LM3526M-L operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB) with a reference voltage (VREF). The difference between these voltages is amplified and used to control the pass transistor, which adjusts the output voltage to match the desired value.

Detailed Application Field Plans

The LM3526M-L finds applications in various electronic devices where stable voltage regulation is required. Some common application fields include: - Battery-powered devices - Portable audio players - Mobile phones - Digital cameras - Wireless communication devices

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the LM3526M-L are: - LM317: Adjustable voltage regulator with higher maximum output current. - LM1117: Fixed voltage regulator with various output voltage options. - LT1083: High current adjustable voltage regulator with low dropout voltage.

These alternative models can be considered based on specific requirements and design constraints.

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