LM3526MX-L/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, adjustable output voltage
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: LM3526MX-L/NOPB is a voltage regulator IC designed to provide a regulated output voltage from an unregulated input voltage source.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Output Current: Up to 1.5A
• Dropout Voltage: 0.6V typical at 1A load
• Quiescent Current: 10mA typical
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM3526MX-L/NOPB IC has the following pin configuration:

1. VOUT: Output Voltage
2. GND: Ground
3. FB: Feedback Pin
4. EN: Enable Pin
5. VIN: Input Voltage
6. NC: No Connection
7. NC: No Connection
8. VREF: Reference Voltage

Functional Features

• Adjustable output voltage through external resistors connected to the feedback pin (FB).
• Low dropout voltage allows for efficient regulation even when the input voltage is close to the desired output voltage.
• Built-in thermal shutdown protection prevents damage due to excessive temperature.
• Enable pin (EN) allows for easy on/off control of the regulator.

Advantages and Disadvantages

Advantages: - Wide input voltage range makes it suitable for various applications. - High efficiency ensures minimal power loss. - Adjustable output voltage provides flexibility in different scenarios. - Thermal shutdown protection enhances reliability.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Dropout voltage may affect performance in low input voltage conditions.

Working Principles

The LM3526MX-L/NOPB is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage (VREF). The error amplifier adjusts the pass transistor to maintain the desired output voltage, compensating for changes in load and input voltage.

Application Field Plans

The LM3526MX-L/NOPB can be used in various applications, including but not limited to:

1. Battery-powered devices: Provides regulated voltage for portable electronics such as smartphones, tablets, and portable audio players.
2. Automotive electronics: Regulates voltage for automotive systems, including infotainment systems, lighting, and sensors.
3. Industrial equipment: Ensures stable voltage for control systems, motor drives, and instrumentation.
4. Power supplies: Used in low-power DC-DC converters and linear power supplies.

Alternative Models

Here are some alternative models that offer similar functionality:

1. LM317: Adjustable voltage regulator with higher output current capability.
2. LM1117: Fixed voltage regulator available in various output voltages.
3. LT1083: High-current adjustable voltage regulator with low dropout voltage.

These alternatives can be considered based on specific requirements and application needs.

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