LM3526M-L/NOPB

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, adjustable output voltage
• Package: SOIC-8
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 7V
• Output Voltage Range: 1.25V to 5.5V
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 500mA
• Quiescent Current: 75µA
• Line Regulation: 0.02%/V
• Load Regulation: 0.04%/mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM3526M-L/NOPB has the following pin configuration:

```

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

• VOUT: Output voltage pin
• GND: Ground pin
• FB: Feedback pin for adjusting the output voltage
• EN: Enable pin for turning the regulator on/off
• VIN: Input voltage pin

Functional Features

• High efficiency with low dropout voltage
• Adjustable output voltage through feedback pin
• Thermal shutdown protection
• Short-circuit current limit
• Low quiescent current in shutdown mode

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications
• Adjustable output voltage provides flexibility
• High efficiency results in less power dissipation
• Thermal shutdown protection prevents damage due to overheating
• Short-circuit current limit protects the circuit from excessive current

Disadvantages

• Limited output current of up to 500mA may not be sufficient for high-power applications
• SOIC-8 package may require additional heat sinking for better thermal performance

Working Principles

The LM3526M-L/NOPB is a linear voltage regulator that regulates the output voltage based on the feedback received from the FB pin. It operates by comparing the output voltage with a reference voltage and adjusting the pass transistor accordingly to maintain a stable output voltage. The enable pin (EN) controls the on/off state of the regulator.

Detailed Application Field Plans

The LM3526M-L/NOPB can be used in various applications, including:

1. Battery-powered devices: Provides regulated voltage for portable electronic devices such as smartphones, tablets, and portable media players.
2. Industrial equipment: Suitable for powering control circuits, sensors, and other low-power components in industrial machinery.
3. Automotive electronics: Can be used in automotive applications like infotainment systems, lighting controls, and dashboard displays.
4. IoT devices: Ideal for powering low-power IoT devices such as sensors, smart home devices, and wearable technology.

Detailed and Complete Alternative Models

1. LM317: Adjustable positive voltage regulator with higher output current capability.
2. LM1117: Fixed output voltage regulator available in various voltage options.
3. LT1085: High-current adjustable voltage regulator with low dropout voltage.
4. LM7805: Fixed 5V voltage regulator commonly used in many applications.

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

In conclusion, the LM3526M-L/NOPB is a versatile linear voltage regulator with adjustable output voltage, high efficiency, and thermal protection. It finds applications in battery-powered devices, industrial equipment, automotive electronics, and IoT devices. While it has limitations in terms of output current and package size, there are alternative models available to suit different design needs.