LM3525MX-L/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Adjustable Output, Current Limiting
• Package: 8-Pin SOIC (Small Outline Integrated Circuit)
• Essence: LM3525MX-L/NOPB is a voltage regulator IC designed to provide a stable output voltage with low dropout voltage. It is commonly used in various electronic devices to regulate and control the voltage supplied to different components.
• Packaging/Quantity: The LM3525MX-L/NOPB is available in a standard 8-pin SOIC package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage Range: 1.25V to 5.5V
• Dropout Voltage: 200mV at 100mA load current
• Output Current: Up to 500mA
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Shutdown Current: 0.1µA (typical)

Pin Configuration

The LM3525MX-L/NOPB has the following pin configuration:

```

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| | --| EN GND |-- Pin 1: Enable (EN) --| VIN VOUT |-- Pin 2: Input Voltage (VIN) --| FB NC |-- Pin 3: Feedback (FB) --| GND NC |-- Pin 4: Ground (GND) --| NC NC |-- Pin 5: Not Connected (NC) --| NC VOUT |-- Pin 6: Output Voltage (VOUT) --| NC NC |-- Pin 7: Not Connected (NC) --| VIN GND |-- Pin 8: Input Voltage (VIN) |___________| ```

Functional Features

• Low Dropout: The LM3525MX-L/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.
• Adjustable Output: The output voltage can be adjusted within a specified range using external resistors.
• Current Limiting: The IC incorporates current limiting circuitry to protect the device and the load from excessive current.
• Enable Pin: The enable pin (EN) allows the user to control the operation of the regulator by enabling or disabling it.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation even with low input voltages. - Adjustable output voltage provides flexibility in various applications. - Current limiting protects the device and load from damage. - Enable pin allows for easy control of the regulator's operation.

Disadvantages: - Limited output current compared to some other voltage regulators. - Requires external components (resistors) for adjusting the output voltage.

Working Principles

The LM3525MX-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 to adjust the pass transistor's resistance and maintain a stable output voltage. The enable pin (EN) controls the operation of the regulator, allowing the user to turn it on or off as needed.

Detailed Application Field Plans

The LM3525MX-L/NOPB can be used in various applications where a stable and regulated voltage supply is required. Some potential application fields include:

1. Battery-Powered Devices: The LM3525MX-L/NOPB can be used in portable electronic devices, such as smartphones, tablets, and portable media players, to regulate the voltage supplied to different components.

2. Automotive Electronics: It can be employed in automotive applications, such as infotainment systems, dashboard displays, and lighting control modules, to ensure a stable voltage supply.

3. Industrial Control Systems: The LM3525MX-L/NOPB can be utilized in industrial control systems, including motor control units, sensors, and actuators, to provide a regulated voltage for reliable operation.

4. Communication Equipment: It can be integrated into communication equipment, such as routers, switches, and modems, to maintain a stable voltage supply for optimal performance.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM3525MX-L/NOPB include:

1. LM1117-ADJ: A low dropout voltage regulator with adjustable output voltage.
2. LT1763-3.3: A high-performance LDO regulator with a fixed 3.3V output voltage.
3. TPS79633: An ultra-low noise, high PSRR (Power Supply Rejection Ratio